General

  • Target

    37e207f37d4e165a627ba940147842a9f9769f2212660ca3ae376bb66ec32f16

  • Size

    68KB

  • Sample

    211022-kax2fsccaq

  • MD5

    2912954afa7aba1a8f1286c352da75df

  • SHA1

    00b0761da101fbeeb84cbe33e27f3b9a96c2f891

  • SHA256

    37e207f37d4e165a627ba940147842a9f9769f2212660ca3ae376bb66ec32f16

  • SHA512

    673ae6be8c864f25d97905375634f36e32b5599db89ca0aa6ec2b0ba0ae4290c2ef921e4e06a2f8b9fa59251f57fe3b94bd8ec4bfd35d789ecd757dddd6cfc94

Malware Config

Targets

    • Target

      37e207f37d4e165a627ba940147842a9f9769f2212660ca3ae376bb66ec32f16

    • Size

      68KB

    • MD5

      2912954afa7aba1a8f1286c352da75df

    • SHA1

      00b0761da101fbeeb84cbe33e27f3b9a96c2f891

    • SHA256

      37e207f37d4e165a627ba940147842a9f9769f2212660ca3ae376bb66ec32f16

    • SHA512

      673ae6be8c864f25d97905375634f36e32b5599db89ca0aa6ec2b0ba0ae4290c2ef921e4e06a2f8b9fa59251f57fe3b94bd8ec4bfd35d789ecd757dddd6cfc94

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

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks