General

  • Target

    PO011945-xls.exe

  • Size

    491KB

  • Sample

    201109-vk7l4h6rbe

  • MD5

    ea8c72dc6c0337d0e8369dfe7ead4348

  • SHA1

    f9a2908695d54aec96b325473d12d6d6f80bfa52

  • SHA256

    2f596498224c1a3dbe1dd61709c82f553ec608c406b13ca6379c27540c0a4d05

  • SHA512

    eb8b1aed3317909e2d18888471dc9ce3d58b5f56eb42e7e521047cd1cca3676b8add358263b86f9a16b5d26ee8ed11054a6ce267705bc0834e088fa81f618b50

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.almushrefcoop.com
  • Port:
    587
  • Username:
    zainab@almushrefcoop.com
  • Password:
    zainab123

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.almushrefcoop.com
  • Port:
    587
  • Username:
    zainab@almushrefcoop.com
  • Password:
    zainab123

Targets

    • Target

      PO011945-xls.exe

    • Size

      491KB

    • MD5

      ea8c72dc6c0337d0e8369dfe7ead4348

    • SHA1

      f9a2908695d54aec96b325473d12d6d6f80bfa52

    • SHA256

      2f596498224c1a3dbe1dd61709c82f553ec608c406b13ca6379c27540c0a4d05

    • SHA512

      eb8b1aed3317909e2d18888471dc9ce3d58b5f56eb42e7e521047cd1cca3676b8add358263b86f9a16b5d26ee8ed11054a6ce267705bc0834e088fa81f618b50

    • 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

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

    • 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.

    • 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

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Tasks