General

  • Target

    Delivery Order.gz.exe

  • Size

    947KB

  • Sample

    210128-v5622lh6xa

  • MD5

    f74303c9d68e259794bff9aa16accc6c

  • SHA1

    86278bc1da358e23bc309f1f0856bb5dcaa4498c

  • SHA256

    38328233c3257c33f13ed27c11ac0ce699433901e4cfdc5c5eb78fb823e85c7a

  • SHA512

    965bd616cf68a9374efc9b91b66978c00961aaa4476274bbc0abf8ee930852c1a9ec327102343fbf70f428024d9790d62e2bcc98e4b8ead6277753c1d49bca4d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.omfoods.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Om@food11D

Targets

    • Target

      Delivery Order.gz.exe

    • Size

      947KB

    • MD5

      f74303c9d68e259794bff9aa16accc6c

    • SHA1

      86278bc1da358e23bc309f1f0856bb5dcaa4498c

    • SHA256

      38328233c3257c33f13ed27c11ac0ce699433901e4cfdc5c5eb78fb823e85c7a

    • SHA512

      965bd616cf68a9374efc9b91b66978c00961aaa4476274bbc0abf8ee930852c1a9ec327102343fbf70f428024d9790d62e2bcc98e4b8ead6277753c1d49bca4d

    • 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.

    • Adds Run key to start application

    • 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

Registry Run Keys / Startup Folder

1
T1060

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