Overview

overview

10

Static

static

1893d4be98...dd.exe

windows7_x64

10

1893d4be98...dd.exe

windows10_x64

10

Analysis

  • max time kernel
    112s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    18-05-2021 08:02

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General

  • Target

    1893d4be981501d3df6cfb6b7d1e3c6de0e394a3e335b6037942357fb4f6d3dd.exe

  • Size

    177KB

  • MD5

    bc1a02b46d905294081fdd09360bda3d

  • SHA1

    9188fac9887c0974573b3d5bcba0056ed4fe4d19

  • SHA256

    1893d4be981501d3df6cfb6b7d1e3c6de0e394a3e335b6037942357fb4f6d3dd

  • SHA512

    707864e3eb0937984d7111291c9d75740cf6626acb9967fd24038c2ac44db19e77ce5df6a2501dd26ad8a4f5a19c85820d13ce3e7ee38ad2488da3975756753b

Score
10/10
gandcrabbackdoorpersistenceransomware

Malware Config

Signatures

  • GandCrab Payload 1 IoCs
  • Gandcrab

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

    ransomwarebackdoorgandcrab
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 24 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 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookAW 64 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1893d4be981501d3df6cfb6b7d1e3c6de0e394a3e335b6037942357fb4f6d3dd.exe
    "C:\Users\Admin\AppData\Local\Temp\1893d4be981501d3df6cfb6b7d1e3c6de0e394a3e335b6037942357fb4f6d3dd.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookAW
    • Suspicious use of WriteProcessMemory
    PID:1360
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 772
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:336

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

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

Replay Monitor

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Downloads

  • memory/336-63-0x0000000000000000-mapping.dmp
    Download
  • memory/336-64-0x0000000000230000-0x0000000000290000-memory.dmp
    Filesize

    384KB

    Download
  • memory/1360-60-0x00000000752B1000-0x00000000752B3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1360-62-0x00000000020D0000-0x00000000020E7000-memory.dmp
    Filesize

    92KB

    Download
  • memory/1360-61-0x0000000000400000-0x000000000059A000-memory.dmp
    Filesize

    1.6MB

    Download