General

  • Target

    e10fe1fdb2c5db6fbc21c203ffa3737f

  • Size

    1013KB

  • Sample

    240327-hs9f4aaa6s

  • MD5

    e10fe1fdb2c5db6fbc21c203ffa3737f

  • SHA1

    8ab562fe60beb21a7614e2924ef6208c28d95a9c

  • SHA256

    7529ab75869152bd388f0e9ed1b34b4e7c25c6bb579d36b11be2228f5eb58460

  • SHA512

    9f1d72470311d980134e2a06a0c3a19dd6d082817ad3b2b1d524e930db99b9b5e690539220e699060600a28d10a36e4e84680e30d505f1f3f2821c0208d52012

  • SSDEEP

    12288:l1Yq55LQJ4/RIOqgmib8WaBlKMXaGzP93ZQJe0uvjDiIL:lKk5EJ4/RIyclKMqGzFJQo3iw

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    abcd@71#

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    abcd@71#

Targets

    • Target

      e10fe1fdb2c5db6fbc21c203ffa3737f

    • Size

      1013KB

    • MD5

      e10fe1fdb2c5db6fbc21c203ffa3737f

    • SHA1

      8ab562fe60beb21a7614e2924ef6208c28d95a9c

    • SHA256

      7529ab75869152bd388f0e9ed1b34b4e7c25c6bb579d36b11be2228f5eb58460

    • SHA512

      9f1d72470311d980134e2a06a0c3a19dd6d082817ad3b2b1d524e930db99b9b5e690539220e699060600a28d10a36e4e84680e30d505f1f3f2821c0208d52012

    • SSDEEP

      12288:l1Yq55LQJ4/RIOqgmib8WaBlKMXaGzP93ZQJe0uvjDiIL:lKk5EJ4/RIyclKMqGzFJQo3iw

    • 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

    • 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