General

  • Target

    Pending Balance Updated.exe

  • Size

    703KB

  • Sample

    230327-thxkbsgc5w

  • MD5

    ab92b205a179da227d2e5f7b83a6f251

  • SHA1

    42527dc009ad1df479c1ac84e8d787258ef6804c

  • SHA256

    b70a16122bd7d485a520eb177209f1c39bd74dbe0ef8502c56a8706f4c9450bc

  • SHA512

    f8d7bb53b0b7d67bb688b95649d5f477b50d78d3c6b3a1c819def97029193cd70542c7ed69f9a2d9e335e7220a616758ea91bab9f923ead3cd7becab99fcf963

  • SSDEEP

    12288:zzSeLEgNGSD7QK/xNei0XpfiLPDDwTusreui8Hc1:qegMM+xR0XePDDwh1Hc

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.clipjoint.co.nz
  • Port:
    587
  • Username:
    clipjoint@clipjoint.co.nz
  • Password:
    melandloz64
  • Email To:
    geortiok4@gmail.com

Targets

    • Target

      Pending Balance Updated.exe

    • Size

      703KB

    • MD5

      ab92b205a179da227d2e5f7b83a6f251

    • SHA1

      42527dc009ad1df479c1ac84e8d787258ef6804c

    • SHA256

      b70a16122bd7d485a520eb177209f1c39bd74dbe0ef8502c56a8706f4c9450bc

    • SHA512

      f8d7bb53b0b7d67bb688b95649d5f477b50d78d3c6b3a1c819def97029193cd70542c7ed69f9a2d9e335e7220a616758ea91bab9f923ead3cd7becab99fcf963

    • SSDEEP

      12288:zzSeLEgNGSD7QK/xNei0XpfiLPDDwTusreui8Hc1:qegMM+xR0XePDDwh1Hc

    • AgentTesla

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

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks