Managed XDR

7391.s.eml (H-Worm, Adwind) — malware analysis report

File info

Filename
7391.s.eml
File type
SMTP mail, ASCII text, with very long lines, with CRLF line terminators
File size
927.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
bcf6d7cc44aebc153d992bb23d9ddf3211e27ee8
SHA256
450898dcb976193834d6dc4b81183fdbea977639d5279375207d6c205ccdf283
MD5
451debf9c3efb134eed7158922c96262

Malwares

  • H-Worm
  • Adwind

Signatures

Execution

T1059 network_wscript_downloader: Wscript.exe initiated network communication
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests
T1059.005 obfuscated_vbs: Detected obfuscated VBS
T1059 wscript_info_discovery: Collects info about system with Wscript.Shell
T1059.005 obfuscated_vbs_wmi: Suspicious WMI queries from VBScript file

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1183 persistence_autorun: Makes itself run automatically on Windows startup
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1183 persistence_autorun: Makes itself run automatically on Windows startup
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Defense Evasion

T1183 persistence_autorun: Makes itself run automatically on Windows startup
T1564.001 stealth_file: Creates hidden or system files
T1562 modify_uac_prompt: Attempts to modify UAC pop-up window behavior
T1562 preventing_process_start: Prevents process start, including Microsoft Defender components and monitoring software
T1562 modify_security_warnings: Attempts to modify or disable security notifications
T1562 disables_uac: Disable UAC
T1112 modifies_associations: Changes the risk level for file types in Attachment Manager
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1222 icacls: May obtain or change Discretionary access control lists (DACLs)
T1027 obfuscated_vbs: Detected obfuscated VBS
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1027 obfuscated_vbs_wmi: Suspicious WMI queries from VBScript file

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1033 recon_beacon: The process has sent information about the computer over the network
T1082 has_wmi: Executes one or several WMI requests
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality
T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1518 locates_browser: Attempts to identify where browsers are installed
T1082 reads_csrss: Attempts to read csrss.exe memory
T1082 wscript_info_discovery: Collects info about system with Wscript.Shell
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1033 wscript_info_discovery: Collects info about system with Wscript.Shell

Command and Control

T1071 network_wscript_downloader: Wscript.exe initiated network communication
T1071.001 recon_beacon: The process has sent information about the computer over the network
T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Impact

T1490 disables_system_restore: Disables System Restore

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
ce_info: Adwind Configuration Data found
locker_taskmgr: Disables Windows Task Manager
creates_many_processes: Spawns a lot of processes (over 70)
networkdyndns_checkip: Connects to a Dynamic DNS domain
adwind: Adwind Trojan indicators detected
creates_exe: Creates executable files in the file system
creates_in_windows: Creates files in the Windows directory
runs_utility_without_cmdline: Runs system utility without arguments (non-typical usage)
executes_dropped_exe: Executes dropped exe files
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
creates_in_programdata: Creates files in the ProgramData directory

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