General

  • Target

    410852ff9e2a5f9b7330bbb6bcc69b91f830aa858d95a64d5f6c3817660a8e00

  • Size

    75KB

  • Sample

    211021-zm4r4abfdl

  • MD5

    4e28ba934df352f14b9e0117c67a05d2

  • SHA1

    a860ae8fb99615d117e6e7cfb734e7f5d18d91c3

  • SHA256

    410852ff9e2a5f9b7330bbb6bcc69b91f830aa858d95a64d5f6c3817660a8e00

  • SHA512

    442a993f69958821be863d0c5352393731c2485f2fbe78a4464ec9b531ccf6cb7ee670e54cc8d5cc11e8a739fb9b882c458f216aee5057ff6e4772e6fd1b51f8

Malware Config

Targets

    • Target

      410852ff9e2a5f9b7330bbb6bcc69b91f830aa858d95a64d5f6c3817660a8e00

    • Size

      75KB

    • MD5

      4e28ba934df352f14b9e0117c67a05d2

    • SHA1

      a860ae8fb99615d117e6e7cfb734e7f5d18d91c3

    • SHA256

      410852ff9e2a5f9b7330bbb6bcc69b91f830aa858d95a64d5f6c3817660a8e00

    • SHA512

      442a993f69958821be863d0c5352393731c2485f2fbe78a4464ec9b531ccf6cb7ee670e54cc8d5cc11e8a739fb9b882c458f216aee5057ff6e4772e6fd1b51f8

    • 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