General

  • Target

    Telco 32pcs New Purchase Order.zip

  • Size

    663KB

  • Sample

    240926-f8allatakd

  • MD5

    6c503a14287d3faf4e13cfc228e12659

  • SHA1

    b53862b3452ac4d4c5a73b65303ff616f43ce926

  • SHA256

    54a3ea040e85099241ba73ecb473904856aa94c590a42304cc5449b98bada101

  • SHA512

    4497a7a49a35a9ef4b8d981b3667fd1046ef0e1d3b6337ac98e3585fe59aa29353289e2efdc81d72be812052458c78b89eae5491ec2f1081532a6e7b9b4d5784

  • SSDEEP

    12288:FLguB39BMVL5YbIrci2xjt+jcNPrloy0Ik2W1qa95RV1LRnGBLAxhizUAC5n2Qcv:FLguLOLukIi2DWc9r2hIkFb9bLrXMK58

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Telco 32pcs New Purchase Order.exe

    • Size

      968KB

    • MD5

      8d310f2e831174aac8eaa5eba20e87ad

    • SHA1

      600ef55976b69523c7973c5d0aeeb91f3fdcf97e

    • SHA256

      457b6241f125cd8c4f030e7b7f05829b89a5e831f624225cb70ea272ecd88876

    • SHA512

      a8a58d69131ae7b6736af515ad800eebe123df03c8c5b909e24ae64e382f310835f984d045f97aabe11a0f489e614b1d8d516add24d9cfde6f261ca88af75839

    • SSDEEP

      24576:izFcFCG6ra2QIi2zGc9rwZTkfrw6bMfR1q:izFcsG3ZDc9riI0q

    • AgentTesla

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • 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.

    • 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 Enterprise v15

Tasks