General

  • Target

    fa7a9174203e49fd7173215899aef97c_JaffaCakes118

  • Size

    1.1MB

  • Sample

    240419-rkh4lsed68

  • MD5

    fa7a9174203e49fd7173215899aef97c

  • SHA1

    4f755973dde45e8345e4023c57e11913ce5fd1ab

  • SHA256

    f6e97c47807eef7057b45d3006bb0c4ca1dfac9ab9340cc2e50f3f3d2917b9f3

  • SHA512

    fd888257c279c43bcab1dbc856bfb5890ea611e762276183bf6ccc465ca8af3747f56ee3c8f2694eae950ec2dfb20b3575ef617ae1bb4a25454f5a4e82dc7891

  • SSDEEP

    12288:XC/u2o2Ahe9TebuuS7jsbePJbcbYBvW+TUrxIPV4EWvjrwuky9arwnwtMPqFX/Nc:Sno2A4dfQyrtw6PGjYYwK0/NJKaoU

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    server1.ahost.uz
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    N(8=3n[Shp7i

Targets

    • Target

      fa7a9174203e49fd7173215899aef97c_JaffaCakes118

    • Size

      1.1MB

    • MD5

      fa7a9174203e49fd7173215899aef97c

    • SHA1

      4f755973dde45e8345e4023c57e11913ce5fd1ab

    • SHA256

      f6e97c47807eef7057b45d3006bb0c4ca1dfac9ab9340cc2e50f3f3d2917b9f3

    • SHA512

      fd888257c279c43bcab1dbc856bfb5890ea611e762276183bf6ccc465ca8af3747f56ee3c8f2694eae950ec2dfb20b3575ef617ae1bb4a25454f5a4e82dc7891

    • SSDEEP

      12288:XC/u2o2Ahe9TebuuS7jsbePJbcbYBvW+TUrxIPV4EWvjrwuky9arwnwtMPqFX/Nc:Sno2A4dfQyrtw6PGjYYwK0/NJKaoU

    • 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