General

  • Target

    Payment Advice_PDF.exe

  • Size

    720KB

  • Sample

    211202-hlye9afdf6

  • MD5

    f1f5f082c707be1fc50b7ce02be2f737

  • SHA1

    0dca633e019efe208610c865c803d977700ff6c3

  • SHA256

    1198a451bd5c647dc451f747b3fe9013f178c393822007ebffb836cdf8431b6a

  • SHA512

    ade7b8dd5c4c7405888aba0ef15f851d4be83aad13fc56efbf18814efa7637de0667dc953a4325d46fdaf843064f9a8d2024c199dba7a2d5e550e25b4ef15fb7

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.huiijingco.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    lNLUrZT2

Targets

    • Target

      Payment Advice_PDF.exe

    • Size

      720KB

    • MD5

      f1f5f082c707be1fc50b7ce02be2f737

    • SHA1

      0dca633e019efe208610c865c803d977700ff6c3

    • SHA256

      1198a451bd5c647dc451f747b3fe9013f178c393822007ebffb836cdf8431b6a

    • SHA512

      ade7b8dd5c4c7405888aba0ef15f851d4be83aad13fc56efbf18814efa7637de0667dc953a4325d46fdaf843064f9a8d2024c199dba7a2d5e550e25b4ef15fb7

    • 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 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

    • 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

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

2
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

2
T1005

Email Collection

1
T1114

Tasks