Managed XDR

81aafb52a29487eeb3fc39...ec4d90b8b96.eml.danger (njRAT) — malware analysis report

File info

Filename
81aafb52a29487eeb3fc399fa4b4d4a719d2493eea58310fc1a96ec4d90b8b96.eml.danger
File type
RFC 822 mail, ASCII text, with CRLF line terminators
File size
97.4 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
ea938ffe0c5a0add63bda6bc3cd745cf3a96f0ce
SHA256
81aafb52a29487eeb3fc399fa4b4d4a719d2493eea58310fc1a96ec4d90b8b96
MD5
3d501ccdd27dd3504eff8b8f25583e74

Malwares

  • njRAT

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059 network_wscript_downloader: Wscript.exe initiated network communication
T1059 powershell_cmd_longcommandline: Suspiciously long commandline
T1059 cmd_vbs: Detected command line that interacts with VBS-script
T1204.002 mimics_extension: Attempts to mimic the file extension
T1059.001 suspicious_process: Spawns a suspicious process
T1047 has_wmi: Executes one or several WMI requests
T1059.005 obfuscated_vbs: Detected obfuscated VBS
T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 url_cmdline: Cmdline of process contains URL

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1218 bypass_dev_utils: Executing .NET utility in a suspended state, potentially for injection
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1036 mimics_extension: Attempts to mimic the file extension
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1070 stealth_window: A process created a hidden window
T1027 obfuscated_vbs: Detected obfuscated VBS
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Discovery

T1033 recon_beacon: The process has sent information about the computer over the network
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1082 has_wmi: Executes one or several WMI requests
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

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
T1102.003 references_discord: Contains links to cloud services of Discord (potentially for malicious payload delivery)
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
networkdyndns_checkip: Connects to a Dynamic DNS domain
code_share_services: Connects to text storage services (potentially for malicious payload delivery)
creates_exe: Creates executable files in the file system
modifies_certs: Attempts to generate or modify system certificates
copies_self: Creates a copy of itself
pdf_page: Contains only one page
dead_host: Connects to IP addresses that do not respond to requests
pdf_compressed_stream: Contains an object with compressed stream
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
office_links: Office file contains external links
checktokenmembership: Checks user token with CheckTokenMembership call

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