General

  • Target

    4278e2830a06201c8d2bd5352272fbe141c0c245013a2de2d1b6e221d7b0550d

  • Size

    488KB

  • Sample

    220521-pmdwkaffb2

  • MD5

    cac43c4a8d9685cfb93a18788061d035

  • SHA1

    b9eba05e78b20d20f7ae3fb52e1da3b5f38cdf46

  • SHA256

    4278e2830a06201c8d2bd5352272fbe141c0c245013a2de2d1b6e221d7b0550d

  • SHA512

    aa05979632ef42e6f6e6726d0d6ba393b1b93a883b99311cbc371ca4947cce48cfc7fdd1b736f7b6e9a4dc0d8d0893c42d550c93a722aba7d37cf26c56c599bb

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.ahrass.com
  • Port:
    587
  • Username:
    mohamedadjal@ahrass.com
  • Password:
    chukwuma22

Targets

    • Target

      OPLSU19HP4286.gz.exe

    • Size

      598KB

    • MD5

      7a2ea0c3cc1f0c59f5d35a09843ce4f2

    • SHA1

      2b224c79f1392587d91b3e9c379b9a23adc4767d

    • SHA256

      a6599b417be167f4a56b09497a4e42a60305c59b564b872246c2c6a6f368c44a

    • SHA512

      89d867eaa6f51bda727acac536a3e748cbaa1e6eb08d92883b252b361ca100f4cb2acd0dbcf8d5d5e4591adf506c32c2a042b4e6eecd67a45cb2c541ce3002a6

    • 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