Managed XDR

vtdl_cce9wk2n (Agent Tesla) — malware analysis report

File info

Filename
vtdl_cce9wk2n
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.2, Code page: 1252, Name of Creating Application: Microsoft Excel, Create Time/Date: Sat Sep 16 00:00:00 2006, Last Saved Time/Date: Mon Nov 28 17:16:36 2022, Security: 1
File size
1.1 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
30b76380cfb867117a8c2ca46ac928efb7c49fc3
SHA256
c46fb3ff9b182ca43e59e8b02e3345c23ad41adb6977b57f235bb99d5d5be77f
MD5
f64871d4672a63c91fc8669d4294d75a

Malwares

  • Agent Tesla

Signatures

Execution

T1559 executes_dropped_exe: Executes dropped exe files
T1203 exploit_CVE_2017_11882: Exploits CVE-2017-11882 vulnerability
T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1559 suricata_alert: Malicious traffic detected
T1559 creates_exe: Creates executable files in the file system
T1559 runs_utility_without_cmdline: Runs system utility without arguments (non-typical usage)
T1047 has_wmi: Executes one or several WMI requests
T1559 suspicious_process_network: Unusual process network activity detected
T1559 suspicious_process: Spawns a suspicious process
T1559 unexpected_exception: Unexpected exception
T1064 office_macros: The document contains macro
T1559 break_limit_exceeded: Warning: function calls limit has been exceeded
T1559 office_summary: The document contains suspicious metadata
T1559 get_sid_domain: Get user's SID
T1559 test_check_service: Starts services
T1559 create_rpc_bindings: Creates RPC connection
T1559 checktokenmembership: Checks user token with CheckTokenMembership call

Privilege Escalation

T1055.012 injection_runpe: Injects code into another process
T1055 injection_runpe_2: Executes injected code in another process
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges

Defense Evasion

T1055.012 injection_runpe: Injects code into another process
T1497.001 antivm_generic_bios: Checks the BIOS version, possibly for anti-virtualization
T1497.001 antivm_vbox_keys: Detects VirtualBox through the presence of a registry key
T1497.001 antivm_vmware_keys: Detects VMware through the presence of a registry key
T1497.001 antivm_generic_scsi: Attempts to detect virtualization by SCSI Disk Identifier
T1055 injection_runpe_2: Executes injected code in another process
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1064 office_macros: The document contains macro
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1070 stealth_window: A process created a hidden window

Discovery

T1497.001 antivm_generic_bios: Checks the BIOS version, possibly for anti-virtualization
T1497.001 antivm_vbox_keys: Detects VirtualBox through the presence of a registry key
T1497.001 antivm_vmware_keys: Detects VMware through the presence of a registry key
T1497.001 antivm_generic_scsi: Attempts to detect virtualization by SCSI Disk Identifier
T1082 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1083 checks_recent_files: Attempt to check recently opened files through registry
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining

Command and Control

T1071.001 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1071.004 office_exploit_dns: The document exhibits suspicious behaviour (performs DNS requests)
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
get_memory_status: Gets information about the virtual and physical memory of the system
get_username: Gets username

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