General

  • Target

    Pending Order Confirmation.gz.exe

  • Size

    669KB

  • Sample

    201126-m9qsh72d6n

  • MD5

    fabea57872e14b1facc1f3ff573ae6b9

  • SHA1

    d790a7ba0dbe886ca05580eb7f3bd47e7b5879ab

  • SHA256

    ae6c488302c04f00a60835db6b955fb8e1eb42f0e73e71873f5b7dc630596755

  • SHA512

    7ff1e78602417a2f7b1ccc9e2025851827aef1735605377e48a13a9fc629dffed7cea4262335741a86b82609c7d1b5fdc8a45fd9d611bbdf4fcca0bed98b59b7

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.shirdilog.com
  • Port:
    587
  • Username:
    cs.maa@shirdilog.com
  • Password:
    SL094521

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.shirdilog.com
  • Port:
    587
  • Username:
    cs.maa@shirdilog.com
  • Password:
    SL094521

Targets

    • Target

      Pending Order Confirmation.gz.exe

    • Size

      669KB

    • MD5

      fabea57872e14b1facc1f3ff573ae6b9

    • SHA1

      d790a7ba0dbe886ca05580eb7f3bd47e7b5879ab

    • SHA256

      ae6c488302c04f00a60835db6b955fb8e1eb42f0e73e71873f5b7dc630596755

    • SHA512

      7ff1e78602417a2f7b1ccc9e2025851827aef1735605377e48a13a9fc629dffed7cea4262335741a86b82609c7d1b5fdc8a45fd9d611bbdf4fcca0bed98b59b7

    • AgentTesla

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

    • AgentTesla Payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Tasks