General

  • Target

    517c6f4aad96b59020c6c736521a3084b2c625c5d7ce4f637634839b98b28c11

  • Size

    68KB

  • Sample

    211022-j8tk9abda7

  • MD5

    5cfa1c74d3410705daf7055374b56f2f

  • SHA1

    6943644e7c6e52324353770e13ede9b78e3036a9

  • SHA256

    517c6f4aad96b59020c6c736521a3084b2c625c5d7ce4f637634839b98b28c11

  • SHA512

    ec513614e02f6b69224adc17284581069aae97269518d41a0b9a451ab2fdc5f12ae74900853d6794c67407fc5e8294543a49b1658f102ff23d76d1308a4aaae7

Malware Config

Targets

    • Target

      517c6f4aad96b59020c6c736521a3084b2c625c5d7ce4f637634839b98b28c11

    • Size

      68KB

    • MD5

      5cfa1c74d3410705daf7055374b56f2f

    • SHA1

      6943644e7c6e52324353770e13ede9b78e3036a9

    • SHA256

      517c6f4aad96b59020c6c736521a3084b2c625c5d7ce4f637634839b98b28c11

    • SHA512

      ec513614e02f6b69224adc17284581069aae97269518d41a0b9a451ab2fdc5f12ae74900853d6794c67407fc5e8294543a49b1658f102ff23d76d1308a4aaae7

    • 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