General

  • Target

    af2e6539074c4dae12ebff3cb79528b4a2a319ba6b5ef62d5c7c7532da3e2ebeN

  • Size

    2.8MB

  • Sample

    241026-c67a1awkfq

  • MD5

    b76ac2d525461ecea565b3328b0577d0

  • SHA1

    3b7f71b3348c842b2bd96fba18e2361b2f20cc53

  • SHA256

    af2e6539074c4dae12ebff3cb79528b4a2a319ba6b5ef62d5c7c7532da3e2ebe

  • SHA512

    c9166577f1af3f8482c8dcc27ae1746613cba56289997600f1f68e73a072d831d2beb0709f7c68fcd18f0e0b4efbbab54fa5dcc77fb57f450c21c997917c1e82

  • SSDEEP

    12288:mP7r9r/+ppppppppppppppppppppppppppppp0Garcy9OjzUoSSGts12uik/As7g:m1q0OjzUoSnIiXs712heuYGCg

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      af2e6539074c4dae12ebff3cb79528b4a2a319ba6b5ef62d5c7c7532da3e2ebeN

    • Size

      2.8MB

    • MD5

      b76ac2d525461ecea565b3328b0577d0

    • SHA1

      3b7f71b3348c842b2bd96fba18e2361b2f20cc53

    • SHA256

      af2e6539074c4dae12ebff3cb79528b4a2a319ba6b5ef62d5c7c7532da3e2ebe

    • SHA512

      c9166577f1af3f8482c8dcc27ae1746613cba56289997600f1f68e73a072d831d2beb0709f7c68fcd18f0e0b4efbbab54fa5dcc77fb57f450c21c997917c1e82

    • SSDEEP

      12288:mP7r9r/+ppppppppppppppppppppppppppppp0Garcy9OjzUoSSGts12uik/As7g:m1q0OjzUoSnIiXs712heuYGCg

    • AgentTesla

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

    • Agenttesla family

    • UAC bypass

    • Windows security bypass

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

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

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Windows security modification

    • Checks whether UAC is enabled

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks