General

  • Target

    098f0abe6aa81a26b7f8c7377b673da27b639e19444633161a487d07428abc1d

  • Size

    469KB

  • Sample

    220530-wspnkseef6

  • MD5

    61c1a54a3e28bdbba33206f53d116605

  • SHA1

    47af2a90883e0fc55adb5d2e6b26a00157bc657d

  • SHA256

    098f0abe6aa81a26b7f8c7377b673da27b639e19444633161a487d07428abc1d

  • SHA512

    4ca2e5e8f288ef8f50bb04800f98835dce69b2d1e786cba483b44d43d3b745fdaf1697ce0682d117e73197c0db3b6beea2ebe95eb95eb7b920107b9a13ac7bd7

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.pipingzone.com
  • Port:
    587
  • Username:
    sales@pipingzone.com
  • Password:
    PQ^vN@^wm6

Targets

    • Target

      098f0abe6aa81a26b7f8c7377b673da27b639e19444633161a487d07428abc1d

    • Size

      469KB

    • MD5

      61c1a54a3e28bdbba33206f53d116605

    • SHA1

      47af2a90883e0fc55adb5d2e6b26a00157bc657d

    • SHA256

      098f0abe6aa81a26b7f8c7377b673da27b639e19444633161a487d07428abc1d

    • SHA512

      4ca2e5e8f288ef8f50bb04800f98835dce69b2d1e786cba483b44d43d3b745fdaf1697ce0682d117e73197c0db3b6beea2ebe95eb95eb7b920107b9a13ac7bd7

    • AgentTesla

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

    • AgentTesla Payload

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • 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