General

  • Target

    6b16a229b3af43c100a1c8baae0b0d4f_JaffaCakes118

  • Size

    4.2MB

  • Sample

    240523-qq281adb54

  • MD5

    6b16a229b3af43c100a1c8baae0b0d4f

  • SHA1

    bc8b107ca7db60e94a36fd01908a853292025a9c

  • SHA256

    1dd611fc80b9bbd697113ef3afe747edf5fe51e23b3c7407a29c65f753f1260d

  • SHA512

    6aa3aa03ed24d75ea2fbbd2c9e6ad785032d3d23ca450ff467b61e793ca46cd71594027f1b990471ddaa867e4822fd52d059eeb9d0d6f655baf7c7e2ff9f747e

  • SSDEEP

    98304:G0YVc8p/kHGJq2fMZggNR97ORwF5mBvoN0VH9zZDHnvVoZ0ljqNRYx:G078pPq64RURwbvN8HV1HnvVoZ4CRYx

Malware Config

Extracted

Family

cryptbot

C2

nkoopw03.top

moraass06.top

Targets

    • Target

      6b16a229b3af43c100a1c8baae0b0d4f_JaffaCakes118

    • Size

      4.2MB

    • MD5

      6b16a229b3af43c100a1c8baae0b0d4f

    • SHA1

      bc8b107ca7db60e94a36fd01908a853292025a9c

    • SHA256

      1dd611fc80b9bbd697113ef3afe747edf5fe51e23b3c7407a29c65f753f1260d

    • SHA512

      6aa3aa03ed24d75ea2fbbd2c9e6ad785032d3d23ca450ff467b61e793ca46cd71594027f1b990471ddaa867e4822fd52d059eeb9d0d6f655baf7c7e2ff9f747e

    • SSDEEP

      98304:G0YVc8p/kHGJq2fMZggNR97ORwF5mBvoN0VH9zZDHnvVoZ0ljqNRYx:G078pPq64RURwbvN8HV1HnvVoZ4CRYx

    • CryptBot

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

    • CryptBot payload

    • 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.

    • Executes dropped EXE

    • Identifies Wine through registry keys

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

    • Loads dropped DLL

    • 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.

    • 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