General

  • Target

    b5861c96767caed4fce1473ac338d1bf_JaffaCakes118

  • Size

    2.2MB

  • Sample

    240616-2hgswa1epc

  • MD5

    b5861c96767caed4fce1473ac338d1bf

  • SHA1

    c9575e657706a01a28aa63943f39018377a5dfe1

  • SHA256

    883ecab1d18c6e8153b56541df2df4980a27f5faa93ba2b42ff1dd14a8f4c161

  • SHA512

    388bb192a27442c80f0ece67ef5e43ec6e148e24aa4634a524d3e7ec3cbd78b11bd4a200d76610168efd52711af8e3d6b2773088f09630843d9cfd6a02ab2240

  • SSDEEP

    49152:IYgNe1kDmRGkWDDWaBZmnr+KHhhg9EKDYhKk:IHahRGh7ZmxHhNKDYhKk

Malware Config

Extracted

Family

cryptbot

C2

biss01.info

Targets

    • Target

      b5861c96767caed4fce1473ac338d1bf_JaffaCakes118

    • Size

      2.2MB

    • MD5

      b5861c96767caed4fce1473ac338d1bf

    • SHA1

      c9575e657706a01a28aa63943f39018377a5dfe1

    • SHA256

      883ecab1d18c6e8153b56541df2df4980a27f5faa93ba2b42ff1dd14a8f4c161

    • SHA512

      388bb192a27442c80f0ece67ef5e43ec6e148e24aa4634a524d3e7ec3cbd78b11bd4a200d76610168efd52711af8e3d6b2773088f09630843d9cfd6a02ab2240

    • SSDEEP

      49152:IYgNe1kDmRGkWDDWaBZmnr+KHhhg9EKDYhKk:IHahRGh7ZmxHhNKDYhKk

    • CryptBot

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

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

    • Checks BIOS information in registry

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

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Reads user/profile data of web browsers

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

    • 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.

    • 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 v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks