General

  • Target

    dba96ee600123552dadc5382141329632bbf0c819888b3bc2e53f339667dbcc3

  • Size

    627KB

  • Sample

    240419-cbjw8add74

  • MD5

    486dca36f70bda709ce425682fc94bd7

  • SHA1

    a0ac277f7bed2142308983e1662d7190e4a209fb

  • SHA256

    dba96ee600123552dadc5382141329632bbf0c819888b3bc2e53f339667dbcc3

  • SHA512

    3d1429d5c918bc2ecf6ad30d9efa1831e4325ad353ff6dc39c921d44bbae17dcc3b197af7ece01a968eef24edbedd24b4d67b4e023eb2691015cc835cac63d4a

  • SSDEEP

    12288:KUc5JfzT37rK0XpOB6Z2ZZ8cJmdpBIQfBsW5SefjfvSscbFBI7:uPK0XI8ZU7JkBIQoefjqsKI

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    SMTP.yandex.com
  • Port:
    587
  • Username:
    s.sureman@yandex.com
  • Password:
    vrsbsgycxhmlbpot
  • Email To:
    s.sureman@yandex.com

Targets

    • Target

      dba96ee600123552dadc5382141329632bbf0c819888b3bc2e53f339667dbcc3

    • Size

      627KB

    • MD5

      486dca36f70bda709ce425682fc94bd7

    • SHA1

      a0ac277f7bed2142308983e1662d7190e4a209fb

    • SHA256

      dba96ee600123552dadc5382141329632bbf0c819888b3bc2e53f339667dbcc3

    • SHA512

      3d1429d5c918bc2ecf6ad30d9efa1831e4325ad353ff6dc39c921d44bbae17dcc3b197af7ece01a968eef24edbedd24b4d67b4e023eb2691015cc835cac63d4a

    • SSDEEP

      12288:KUc5JfzT37rK0XpOB6Z2ZZ8cJmdpBIQfBsW5SefjfvSscbFBI7:uPK0XI8ZU7JkBIQoefjqsKI

    • 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 WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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

    • 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 v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Tasks