General

  • Target

    063557e31f33f43df3d9324be5b24829a7f636952526d89be348f3e86c019dab

  • Size

    510KB

  • Sample

    220521-byx7pafgej

  • MD5

    e37692988a5fcd94fab5cd3153c3c4ed

  • SHA1

    cce71c4a884703262f261f6e264703fece588739

  • SHA256

    063557e31f33f43df3d9324be5b24829a7f636952526d89be348f3e86c019dab

  • SHA512

    6feb5bcc433f6fa845364d06c5c95100e33eb0f1bbde815e14bed2749f4da4b9bb9afaf8ccfacadb0a35911a4810e4cf186194508c1d37c3d626b9b2f3895b75

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.specialmetal.ir
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    02188985257

Targets

    • Target

      RFQ ICT-200068-MKE-AL ESTISHARI_pdf.exe

    • Size

      603KB

    • MD5

      23f551a5ac8ec744ece3dabee871cd30

    • SHA1

      97227666e1b88f7f6e2d88e6d53c832edf6f52cb

    • SHA256

      3ac8a6bb8e3551f1889bcdbe567d78c4d1afd90f91904d5bbaffc6879abbb37a

    • SHA512

      0f53a4efdc1159a96e177e288b0a7ca58bd4acd3ade45a5720d4633f514f824a42bba761859fd6a7c6f0da51f32c493fb7b1bf73526d28bf4574858d5bc4e25e

    • 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