General

  • Target

    orden pendiente #3422.exe

  • Size

    382KB

  • Sample

    220120-ja882sgfhr

  • MD5

    7236e64dc6eb9e21ae4c16239820713f

  • SHA1

    f97cc4ecc429d57d44674511d518f9e6b428e7b3

  • SHA256

    4c57fb95b67660646d6e37a04eb78e010c6a629e1fd8590aaeb4093dea0fad1f

  • SHA512

    b3d6a3f4ff123a344d91b35e2f09fc0cf470756f0439d4b71a250681ac71d60a60f062e5979a6d62f18cf10599d2e0d740e9857a9ed6834b1736360c95bf32c2

Malware Config

Targets

    • Target

      orden pendiente #3422.exe

    • Size

      382KB

    • MD5

      7236e64dc6eb9e21ae4c16239820713f

    • SHA1

      f97cc4ecc429d57d44674511d518f9e6b428e7b3

    • SHA256

      4c57fb95b67660646d6e37a04eb78e010c6a629e1fd8590aaeb4093dea0fad1f

    • SHA512

      b3d6a3f4ff123a344d91b35e2f09fc0cf470756f0439d4b71a250681ac71d60a60f062e5979a6d62f18cf10599d2e0d740e9857a9ed6834b1736360c95bf32c2

    • UAC bypass

    • Windows security bypass

    • XpertRAT

      XpertRAT is a remote access trojan with various capabilities.

    • Looks for VirtualBox Guest Additions in registry

    • Adds policy Run key to start application

    • Looks for VMWare Tools registry key

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • Windows security modification

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • 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

Persistence

Registry Run Keys / Startup Folder

3
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

3
T1089

Modify Registry

7
T1112

Virtualization/Sandbox Evasion

2
T1497

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Email Collection

1
T1114

Tasks