General

  • Target

    DOCX.exe

  • Size

    910KB

  • Sample

    220521-gvxpmsdeen

  • MD5

    399616465c043be87b1448bdde5c3b20

  • SHA1

    2f86f7263563942b23907e2c9868edcb6588fc1a

  • SHA256

    85c50841a484f05259b3f8e02ed444c0403f605d33f9ee9b0afbceccadc73892

  • SHA512

    62729924227b5418291c5e863c3984ab4995403e5a3ef294cda7a01a4b8c9c8f9398add57bd48e038ded99a5c95bdd5be60670befd4b4210a7246f2e696cb853

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    DANIEL3116

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    DANIEL3116

Targets

    • Target

      DOCX.exe

    • Size

      910KB

    • MD5

      399616465c043be87b1448bdde5c3b20

    • SHA1

      2f86f7263563942b23907e2c9868edcb6588fc1a

    • SHA256

      85c50841a484f05259b3f8e02ed444c0403f605d33f9ee9b0afbceccadc73892

    • SHA512

      62729924227b5418291c5e863c3984ab4995403e5a3ef294cda7a01a4b8c9c8f9398add57bd48e038ded99a5c95bdd5be60670befd4b4210a7246f2e696cb853

    • AgentTesla

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

    • 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