General

  • Target

    bce3d4468a19ac9a5d33e30ce7ffe8767e1f0921dc99a063c0b969237204392d

  • Size

    270KB

  • Sample

    221123-m4z41sfg77

  • MD5

    bbc8ab5113d407414ed57b05b61643f9

  • SHA1

    5909faf63f89d030092ef1a4290d0f0c663e7535

  • SHA256

    bce3d4468a19ac9a5d33e30ce7ffe8767e1f0921dc99a063c0b969237204392d

  • SHA512

    2187af94f07932b7015346817be198908a3edca8f3216db14c59651d15f7ce701ad2130464ea079cd16b0b426352983089bec11287865403a2e73b0fe9298db6

  • SSDEEP

    6144:jQqEDIL/c96NuINMktPaEmuxDwEZ9Haac8Zm:Ww/udnaPNBhvHa78Zm

Malware Config

Targets

    • Target

      bce3d4468a19ac9a5d33e30ce7ffe8767e1f0921dc99a063c0b969237204392d

    • Size

      270KB

    • MD5

      bbc8ab5113d407414ed57b05b61643f9

    • SHA1

      5909faf63f89d030092ef1a4290d0f0c663e7535

    • SHA256

      bce3d4468a19ac9a5d33e30ce7ffe8767e1f0921dc99a063c0b969237204392d

    • SHA512

      2187af94f07932b7015346817be198908a3edca8f3216db14c59651d15f7ce701ad2130464ea079cd16b0b426352983089bec11287865403a2e73b0fe9298db6

    • SSDEEP

      6144:jQqEDIL/c96NuINMktPaEmuxDwEZ9Haac8Zm:Ww/udnaPNBhvHa78Zm

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

2
T1112

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

5
T1082

Tasks