General

  • Target

    f976097263601e75f6fa92f28721613c_JaffaCakes118

  • Size

    760KB

  • Sample

    240419-emccmagb57

  • MD5

    f976097263601e75f6fa92f28721613c

  • SHA1

    ad49eb064503e77d3b7401e9f2d61e48eead075b

  • SHA256

    e90769b8c83d43c2cce47edb9503f69a1ebf9123ee1714c5bbbf99954cadf98b

  • SHA512

    80e1921f97ad35462d7d0a134779ac617344b93aed2ceac807d27c4873bee32a1486da79de2f61c550fd6c345edd0573bd8f53f1437c5bea04e8a93660d298db

  • SSDEEP

    6144:Rxp+UOdms6UWBeEeXJn3yCRYFCN+JNt8qYpQUtW6x1pqJDgjFIIw:X8Nss6UvEeN8lJu/tWUHjFI

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.sunyimpex.com/
  • Port:
    21
  • Username:
    rich@sunyimpex.com
  • Password:
    BZl@Xw{D(HQm

Targets

    • Target

      f976097263601e75f6fa92f28721613c_JaffaCakes118

    • Size

      760KB

    • MD5

      f976097263601e75f6fa92f28721613c

    • SHA1

      ad49eb064503e77d3b7401e9f2d61e48eead075b

    • SHA256

      e90769b8c83d43c2cce47edb9503f69a1ebf9123ee1714c5bbbf99954cadf98b

    • SHA512

      80e1921f97ad35462d7d0a134779ac617344b93aed2ceac807d27c4873bee32a1486da79de2f61c550fd6c345edd0573bd8f53f1437c5bea04e8a93660d298db

    • SSDEEP

      6144:Rxp+UOdms6UWBeEeXJn3yCRYFCN+JNt8qYpQUtW6x1pqJDgjFIIw:X8Nss6UvEeN8lJu/tWUHjFI

    • AgentTesla

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

    • AgentTesla payload

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

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