General

  • Target

    96859a1c445d4185d9528eb39ff088714b497a719f6a5b818e06d3bc1aa0c5d3

  • Size

    395KB

  • Sample

    220521-adxvraaah5

  • MD5

    46d9cf8abdf8142741e7536c2d6a917f

  • SHA1

    248ec0c043ea12c8a39b8b8854ebdcfa5e48f488

  • SHA256

    96859a1c445d4185d9528eb39ff088714b497a719f6a5b818e06d3bc1aa0c5d3

  • SHA512

    85fb9a6a51a8bf344d9f8804f8432bd12b68ef58646406ebe976c12d2c00e71c6ed02807494b6b2485fceef1642817c0e4dc21ecce37118d02884dbde5a9f0f6

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.retramtrading.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @2018sales321

Targets

    • Target

      New Order Documents.exe

    • Size

      582KB

    • MD5

      a7fc3ba4f95b0c44441dc9bbef395421

    • SHA1

      ab57e90265c7263be4ed81d39ee85f57c3dcbd89

    • SHA256

      a7e0905c5d68fe5f16d13b0df46686024170844c5d68af7b7fb6dcb4fb355e2f

    • SHA512

      163de547e1b847f76d532c266b2b660218b33df07be9bb927db447453c964179a7ecb6c0b44a37402e2f43ff324a563e9cba223da9e1589813ad121d5d59b1df

    • AgentTesla

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

    • AgentTesla Payload

    • 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