General

  • Target

    05c734317f0e2207606025a52074d87d81d588977eb8bf218728f81b48a30c3b

  • Size

    428KB

  • Sample

    220521-byyhfsfgek

  • MD5

    3037116f3fb8c036281b9c2628f163a6

  • SHA1

    90d29c5565b0d114174d64e071920da48524e182

  • SHA256

    05c734317f0e2207606025a52074d87d81d588977eb8bf218728f81b48a30c3b

  • SHA512

    3ce23a44ea37f622ed9be170bbde61e71d0e4463eb8a6931d8e0b753ecefdf39b1e58fb8f857d802996ecce598f31ce92ce54a73b1e2066d630c2d5af180f187

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    mkoify147@@@

Targets

    • Target

      O_R_D_E_R JuneJuly Shipment.exe

    • Size

      510KB

    • MD5

      1c76f6f0ff84104e4113b0cc75a6c05c

    • SHA1

      578e85e628bf0d644798b2d5c7e0bcdb565cb0ee

    • SHA256

      e1432f2dde886e737a5bf123c430c167c86285406b779fd67eaf4bf9c8fa7022

    • SHA512

      b95960b92df3b308cfe56836bd7e5d7228abe7632fc4c76d5d7274f4fe7dc5c16e9da0210f5bb838b0e737e449c773833528072250503da7e89192a5e4d66095

    • AgentTesla

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

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    • AgentTesla Payload

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • Checks computer location settings

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

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Email Collection

1
T1114

Tasks