General

  • Target

    b6521c647241a2d90eed590f30a671bb59d0502474591d85c9b47da44f9ed9aa

  • Size

    68KB

  • Sample

    211021-j5b7ssahak

  • MD5

    80ee15eec2f947f29af93c199c6a5062

  • SHA1

    60df9a563d7ebc4f265f7aacc8f20ec2ea62643d

  • SHA256

    b6521c647241a2d90eed590f30a671bb59d0502474591d85c9b47da44f9ed9aa

  • SHA512

    25ea6e80266556be35685f48070a3eddfc8d9fb839ca782044eb4bd892881fffbdbb78499b1a9be356ab9770eca0e932cf748c22cc5f50eed9a6e0c89472fb72

Malware Config

Targets

    • Target

      b6521c647241a2d90eed590f30a671bb59d0502474591d85c9b47da44f9ed9aa

    • Size

      68KB

    • MD5

      80ee15eec2f947f29af93c199c6a5062

    • SHA1

      60df9a563d7ebc4f265f7aacc8f20ec2ea62643d

    • SHA256

      b6521c647241a2d90eed590f30a671bb59d0502474591d85c9b47da44f9ed9aa

    • SHA512

      25ea6e80266556be35685f48070a3eddfc8d9fb839ca782044eb4bd892881fffbdbb78499b1a9be356ab9770eca0e932cf748c22cc5f50eed9a6e0c89472fb72

    • 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