General

  • Target

    93530c4c096769f27688048f640a4eea_JaffaCakes118

  • Size

    638KB

  • Sample

    240604-b735ashh42

  • MD5

    93530c4c096769f27688048f640a4eea

  • SHA1

    4b024d9bedd8746afe060dc5d0c083f0ebe412de

  • SHA256

    461a9c4bf2d2b7d32a5b31ee339daa9fdaeaf703fe19f5dba5267f5c95cbd9b3

  • SHA512

    ebb1d9ed38345138f0483425dbcec9cb4c74f99211a6af09479f2cd939aacf6a8b8f3d40e257e54bf393d059f4779d92282a82e4750b43713c8c47f5be10bac4

  • SSDEEP

    12288:P8yIy581Qv8yIy581QrpiFowjWodmfvIjL2cw0NHFn:fn8m/n8mNGowjWimHIjL283

Malware Config

Targets

    • Target

      93530c4c096769f27688048f640a4eea_JaffaCakes118

    • Size

      638KB

    • MD5

      93530c4c096769f27688048f640a4eea

    • SHA1

      4b024d9bedd8746afe060dc5d0c083f0ebe412de

    • SHA256

      461a9c4bf2d2b7d32a5b31ee339daa9fdaeaf703fe19f5dba5267f5c95cbd9b3

    • SHA512

      ebb1d9ed38345138f0483425dbcec9cb4c74f99211a6af09479f2cd939aacf6a8b8f3d40e257e54bf393d059f4779d92282a82e4750b43713c8c47f5be10bac4

    • SSDEEP

      12288:P8yIy581Qv8yIy581QrpiFowjWodmfvIjL2cw0NHFn:fn8m/n8mNGowjWimHIjL283

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Tasks