General

  • Target

    0eda75e57316fcb963d52bcd68b9953e_JaffaCakes118

  • Size

    551KB

  • Sample

    240328-ysybtsga45

  • MD5

    0eda75e57316fcb963d52bcd68b9953e

  • SHA1

    eb54b47a2b94171741b5067376b8712f8f567121

  • SHA256

    4fe4931ff2df16ba3943c1380dd21e9c32ce29a708068b3190c10de20b5a1d99

  • SHA512

    7c8b9c36dc46883e5b38e3ab03c762ca000dc6919c7ac37f45c0c6a1bdcd6783a3c4aaafcac066a48da8d769a91cf40b2448e625f8b9285e8584e62bbad21c94

  • SSDEEP

    12288:6EAKe0SVQ9HHg0pzEV0IRheg+E/9QXJJvxlkQVXdTU0Yc3HarZ:DB9awAMzEVreg4XViYXdTUBc3arZ

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.aldhiyafainteriors.com
  • Port:
    587
  • Username:
    rahman@aldhiyafainteriors.com
  • Password:
    dhiyafa@987

Targets

    • Target

      PO # 11002021.exe

    • Size

      700KB

    • MD5

      e9901eec1af843e9546a659866270f6e

    • SHA1

      57b6cccf4084b0a4aff6d236eb6a30df4fe8029f

    • SHA256

      20307784e2521eb5d902498d8c893d7c884e518c38d8659780019ad08fbd341b

    • SHA512

      b98b4937c9c94ebbe91f14e758a7b43d7999047c30840ca802ae60ec18fad4479c9bc21a1a375280119969ebc229065a85f17052804aff96b1246dbacd21959e

    • SSDEEP

      12288:dQh08OGQuZLvqJFTPH0nzwViuZhec8Ev9Qv/J7xlgQVXdTK0Yc3/jf/AzcIiOZpw:xnGQYTqrozwVlecivPOYXdTKBcPjfIg

    • AgentTesla

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

    • AgentTesla payload

    • Drops file in Drivers directory

    • 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

    • 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