General

  • Target

    SecuriteInfo.com.Trojan.Siggen9.45677.29740.5488

  • Size

    8.7MB

  • Sample

    201109-kzjd6lckl2

  • MD5

    12ab181fc8699748180da1ddf0e748f6

  • SHA1

    b269de28e7f3fce738eb4c3285fc608eecd51ec5

  • SHA256

    c91e89e7dd72b337a6933cf71f0b9905d58460ca0f0c922f49ad86d3819af960

  • SHA512

    18355644815bb7cf6b1c45802bee4651014e22ac70e7aa0858ec9d5bf4884e50b6b027dee24bd0ca13a4c73fbebc43a7e09b40523515e163fc9a3d51c219ca0b

Malware Config

Targets

    • Target

      SecuriteInfo.com.Trojan.Siggen9.45677.29740.5488

    • Size

      8.7MB

    • MD5

      12ab181fc8699748180da1ddf0e748f6

    • SHA1

      b269de28e7f3fce738eb4c3285fc608eecd51ec5

    • SHA256

      c91e89e7dd72b337a6933cf71f0b9905d58460ca0f0c922f49ad86d3819af960

    • SHA512

      18355644815bb7cf6b1c45802bee4651014e22ac70e7aa0858ec9d5bf4884e50b6b027dee24bd0ca13a4c73fbebc43a7e09b40523515e163fc9a3d51c219ca0b

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • 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.

    • Loads dropped DLL

    • 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

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Tasks