General

  • Target

    SecuriteInfo.com.Trojan.Siggen19.18804.2556.13559.exe

  • Size

    746KB

  • Sample

    221206-qt4w1acc79

  • MD5

    cb1434a388b8440147cb3bf34cdf1895

  • SHA1

    dfa203d571e69e74b7a945f2a05093adb0b5f9b1

  • SHA256

    00c69d78bc5d6b95fdd71348537bf9b0e30d3f075ca03448fab414f4ad9425fc

  • SHA512

    ee8eb233f4b38e059d7314bb7139bd14e9f8844635ab94550ee2e5d0095bb8d5e78a21f0adbc90a451c2cfcf8993134b4b09a5ba81258249916176ac48f374df

  • SSDEEP

    12288:TwlxtmomPZef+PtqvyuxnATSRO8+LK71KMH9rZUXU+qaiKMYDDv/w:kgomxi+QvnA+EhDk9dUfbL3w

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      SecuriteInfo.com.Trojan.Siggen19.18804.2556.13559.exe

    • Size

      746KB

    • MD5

      cb1434a388b8440147cb3bf34cdf1895

    • SHA1

      dfa203d571e69e74b7a945f2a05093adb0b5f9b1

    • SHA256

      00c69d78bc5d6b95fdd71348537bf9b0e30d3f075ca03448fab414f4ad9425fc

    • SHA512

      ee8eb233f4b38e059d7314bb7139bd14e9f8844635ab94550ee2e5d0095bb8d5e78a21f0adbc90a451c2cfcf8993134b4b09a5ba81258249916176ac48f374df

    • SSDEEP

      12288:TwlxtmomPZef+PtqvyuxnATSRO8+LK71KMH9rZUXU+qaiKMYDDv/w:kgomxi+QvnA+EhDk9dUfbL3w

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • 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