General

  • Target

    cf4c097ad6021d69482076fe305c914d4636781d91bb652dfbc34ffb946b070d

  • Size

    245KB

  • Sample

    230218-zawwqadd78

  • MD5

    e46053b5c24461d596948f0454e73b58

  • SHA1

    6fc4218945520dfd5f3ad851bd0be6928817152a

  • SHA256

    cf4c097ad6021d69482076fe305c914d4636781d91bb652dfbc34ffb946b070d

  • SHA512

    ac23285029ac7e0b35bdf169ebc9f08a31fb75f413c64848a4b5a54037444ee2a6f7e995fbd2fd0e16f70d2b24b3f5d0e60f9d16c2d5555ac571c51cd5cc7184

  • SSDEEP

    3072:nF2VYvjLKUnOnFh4d81cOtI7IwPNOShYPewvYi/IhxSVUtwh:FkMjLKUQh/lwVO24vp/Ij

Malware Config

Targets

    • Target

      cf4c097ad6021d69482076fe305c914d4636781d91bb652dfbc34ffb946b070d

    • Size

      245KB

    • MD5

      e46053b5c24461d596948f0454e73b58

    • SHA1

      6fc4218945520dfd5f3ad851bd0be6928817152a

    • SHA256

      cf4c097ad6021d69482076fe305c914d4636781d91bb652dfbc34ffb946b070d

    • SHA512

      ac23285029ac7e0b35bdf169ebc9f08a31fb75f413c64848a4b5a54037444ee2a6f7e995fbd2fd0e16f70d2b24b3f5d0e60f9d16c2d5555ac571c51cd5cc7184

    • SSDEEP

      3072:nF2VYvjLKUnOnFh4d81cOtI7IwPNOShYPewvYi/IhxSVUtwh:FkMjLKUQh/lwVO24vp/Ij

    • Detects Smokeloader packer

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

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

    • Downloads MZ/PE file

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Uses the VBS compiler for execution

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Detected potential entity reuse from brand microsoft.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Scripting

1
T1064

Modify Registry

1
T1112

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Command and Control

Web Service

1
T1102

Tasks