General

  • Target

    a536d9bbaf7ea3e88dd0878f96f9c6b11322655af0820bbf1097d76474a09c06

  • Size

    1.2MB

  • Sample

    220521-n96dnaaahq

  • MD5

    261ceecf895766ecf425c0f6e8242dc7

  • SHA1

    9d1cb37dccbb67a2c72ac5e673e204fc47d3db81

  • SHA256

    a536d9bbaf7ea3e88dd0878f96f9c6b11322655af0820bbf1097d76474a09c06

  • SHA512

    4cf424579ef3c0b3d8ab954a31aa0b1b4b57eb7b9532933ac6698c66014c92884133d019b3e06b1f96ca17a2aac34bb74582e2af13805d54995042c941631cea

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://asnbanknl.com/
  • Port:
    21
  • Username:
    smartpips
  • Password:
    3mPf4$l2

  • Protocol:
    ftp
  • Host:
    ftp://asnbanknl.com/
  • Port:
    21
  • Username:
    smartpips
  • Password:
    3mPf4$l2

Targets

    • Target

      INVOICE9.EXE

    • Size

      550KB

    • MD5

      005f4b79b9e9fdb2690c8e2db96daa7d

    • SHA1

      3a5235d9f3d7c048d569d2bfea64954c71be95a8

    • SHA256

      88ac38fd4d4a5bff6e2f09c5071b6b8d654e2d65da6662c02d14fabb32047ca7

    • SHA512

      541993e59dd90af133dffc4df7b10fd7889cd59e852f5fd3f5388cc2e87ff0883f4f5fdda523b7ac45f50860be7bd42526a7ce30ef493a877947af7cbb819bfb

    • 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

    • 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