General

  • Target

    f8a636179ff8ae53e00155bc1a2ee682e71fe9eabfb726cb2e95afc1bc17e463.gz

  • Size

    2KB

  • Sample

    240522-c55qsahh6s

  • MD5

    b35152fc0a210a7a7bf08887249f0d1e

  • SHA1

    7e8db93e1be89a088fa0a298c5a5b5db59040b00

  • SHA256

    f8a636179ff8ae53e00155bc1a2ee682e71fe9eabfb726cb2e95afc1bc17e463

  • SHA512

    efb5a8234bc0e16c2494316009762aacbc2c52609066e58534edb9b1b678d7d5e971d84329db417ccd1e6b0f360dde567449da5bd3a424d55b06f05e1bea1c46

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      001761801735.INV.AWB.CO.SOF.20240521.100033.20240521.100205.194286.TIF.hta

    • Size

      5KB

    • MD5

      3ef5759d457c58dc4c8c9b6c15aca5fe

    • SHA1

      be35dffec6716bfe6ece66f7e140b8df97d5b994

    • SHA256

      17e34e2c81eba5e138e335393b981fc11e2b21db0eecb2bc740dbbff7b9f8f32

    • SHA512

      c6b8c4452b774cd782b75891048ca0aacf1ffd0af55536e0d3a7643b6821b46004225b47bc4fbc81fd95c5f6f6aa0eb6dc34f659d0654b29a05b521c431b45e8

    • SSDEEP

      96:buOGiiV+5y/gkgBONHwBB9HaXa3U+1hTIbtu7ZEhtNsim57V+ICgCtUfkX:ypD/gkgywP9HaKk+rTIBeuhtNN2CLtUY

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Legitimate hosting services abused for malware hosting/C2

    • 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 NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks