General

  • Target

    41d424435f37d0aa9dd6c2c2b05210f9e0a29a5969362776845064188f97273a

  • Size

    3.4MB

  • Sample

    220802-159azaddfj

  • MD5

    55a6d22be09d762103ae315f97b58561

  • SHA1

    f218c5bb6b7e3cbe9483f8bc4552edb180fd2bd1

  • SHA256

    41d424435f37d0aa9dd6c2c2b05210f9e0a29a5969362776845064188f97273a

  • SHA512

    4b8967e85ebca846bda3910dac537b360fd36163eb778b6f3c522273d9ac0ae2821536c50a40eb3b56938396166ab83d75e7999dc32fe8807d734a479bdce820

Malware Config

Targets

    • Target

      41d424435f37d0aa9dd6c2c2b05210f9e0a29a5969362776845064188f97273a

    • Size

      3.4MB

    • MD5

      55a6d22be09d762103ae315f97b58561

    • SHA1

      f218c5bb6b7e3cbe9483f8bc4552edb180fd2bd1

    • SHA256

      41d424435f37d0aa9dd6c2c2b05210f9e0a29a5969362776845064188f97273a

    • SHA512

      4b8967e85ebca846bda3910dac537b360fd36163eb778b6f3c522273d9ac0ae2821536c50a40eb3b56938396166ab83d75e7999dc32fe8807d734a479bdce820

    • Modifies security service

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Checks BIOS information in registry

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

    • Drops startup file

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

3
T1112

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Command and Control

Web Service

1
T1102

Tasks