Overview

overview

10

Static

static

3

2024-03-31...ia.exe

windows7-x64

10

2024-03-31...ia.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    140s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    31-03-2024 13:27

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General

  • Target

    2024-03-31_b341cb07abe56fb76dab962380a60350_mafia.exe

  • Size

    275KB

  • MD5

    b341cb07abe56fb76dab962380a60350

  • SHA1

    6b8d9181f0a69eaefba3c281e6c6bd122b77b5ce

  • SHA256

    afb7aee88c82eda0b4e7b1855175da3b8daf2bb2d6833a233c3b78d4a0645763

  • SHA512

    925094328dc0c9cb0992dd10a5613b6f399c495a215298da8c54c6c4c96981fcf039b54bbfa85d9b193a26b5ea58070b1af6fbeff3a8c0822b06b29bc9c9fc9d

  • SSDEEP

    3072:k0x9cSImYuzJHZYx7YmG02RvcLqP+RhML4svPeTs+5KDR+UBz9cvMh2gYMva6SUJ:TJ1dHYxUmG02RkOP+MtWTsqKFP593H

Score
10/10
gandcrabbackdoorpersistenceransomware

Malware Config

Signatures

  • GandCrab payload 4 IoCs
  • Gandcrab

    Gandcrab is a Trojan horse that encrypts files on a computer.

    ransomwarebackdoorgandcrab
  • Detects Reflective DLL injection artifacts 4 IoCs
  • Detects ransomware indicator 4 IoCs
  • Gandcrab Payload 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-31_b341cb07abe56fb76dab962380a60350_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-31_b341cb07abe56fb76dab962380a60350_mafia.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 720
      2⤵
      • Program crash
      PID:2588

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • memory/2868-0-0x0000000000400000-0x000000000055C000-memory.dmp
    Filesize

    1.4MB

    Download
  • memory/2868-2-0x0000000000400000-0x000000000055C000-memory.dmp
    Filesize

    1.4MB

    Download
  • memory/2868-3-0x0000000000720000-0x0000000000820000-memory.dmp
    Filesize

    1024KB

    Download
  • memory/2868-5-0x0000000000240000-0x0000000000257000-memory.dmp
    Filesize

    92KB

    Download
  • memory/2868-12-0x0000000000400000-0x000000000055C000-memory.dmp
    Filesize

    1.4MB

    Download
  • memory/2868-14-0x0000000000720000-0x0000000000820000-memory.dmp
    Filesize

    1024KB

    Download
  • memory/2868-15-0x0000000000240000-0x0000000000257000-memory.dmp
    Filesize

    92KB

    Download