General

  • Target

    4c53652f67c049b1abe6b0728af295376d5cec9c6e5bf765240482ef550365f0

  • Size

    645KB

  • Sample

    220701-hmpjqsgfbq

  • MD5

    e38a0737d98afb1ce2a1ec8810d15339

  • SHA1

    aca4251310ceaee50daefb3e992804b8637ccd8a

  • SHA256

    4c53652f67c049b1abe6b0728af295376d5cec9c6e5bf765240482ef550365f0

  • SHA512

    c861b7c2d6dcd6300ed91ff58edf781b8b8a256f3f3c71ae4490d1435477e4640c03e37610a4cd80ecfa305a23ae084f7281a6c19d4898dd010ee58800a30f32

Malware Config

Targets

    • Target

      4c53652f67c049b1abe6b0728af295376d5cec9c6e5bf765240482ef550365f0

    • Size

      645KB

    • MD5

      e38a0737d98afb1ce2a1ec8810d15339

    • SHA1

      aca4251310ceaee50daefb3e992804b8637ccd8a

    • SHA256

      4c53652f67c049b1abe6b0728af295376d5cec9c6e5bf765240482ef550365f0

    • SHA512

      c861b7c2d6dcd6300ed91ff58edf781b8b8a256f3f3c71ae4490d1435477e4640c03e37610a4cd80ecfa305a23ae084f7281a6c19d4898dd010ee58800a30f32

    • AgentTesla

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

    • 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.

    • 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

    • 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

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