General

  • Target

    1c61ddda86408d39192c8ad768fb2c0625af5f5cdbca79476e4c9359b61d5648

  • Size

    880KB

  • Sample

    220520-2mt9rsaffr

  • MD5

    f79c12de70519e8e5c5cd6024b81cdb6

  • SHA1

    18f12d00a65f2868c9e114f6e2bd03ea790e380a

  • SHA256

    1c61ddda86408d39192c8ad768fb2c0625af5f5cdbca79476e4c9359b61d5648

  • SHA512

    e3f723905dad038cced8e10947a475ce36f96dd90392aef56b90db628a768b4cdf09f2a697c5e778b90f956c80471ec201562e508df2e0767bd2ac504e3a7b10

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    boonkgang

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    boonkgang

Targets

    • Target

      P.O.exe

    • Size

      1.0MB

    • MD5

      2cb582090ac253860995b7844f7872f7

    • SHA1

      dd9af5c059ee15378169231bb78056994b729174

    • SHA256

      c77cb990d8c1292bc7e5c26336b1c38eaab5d8534e39ba7e63b10870acaecac4

    • SHA512

      16011b3034956e620a37820c537a6de13a336a1e89d57490894724fa8bb6b735e38d5b89e9570e7b39838ec3252fc31be588cf87ef54b702cd0550aad56193a2

    • 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 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 v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks