gandcrab | 21f6bc83c707a1c0ec31fecd6177b15b19889ed803feb81c49d342f520fed6e1

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 03:00

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General

Target

21f6bc83c707a1c0ec31fecd6177b15b19889ed803feb81c49d342f520fed6e1.exe
Size

256KB
MD5

8b21acfb205bab287d171915d5a3dae5
SHA1

43088b9e3cc2fe637be983f921240c4d0c0cc3db
SHA256

21f6bc83c707a1c0ec31fecd6177b15b19889ed803feb81c49d342f520fed6e1
SHA512

3d2f239fe85f792babbe2e43888e1e8efd6c1fb93833733488d6a8810916745c3508986cca08dd36941d44846214239d39d2fcc3594b37c4537856068a92733b
SSDEEP

6144:rhvaHGULrgyWh0/Ro/FbzneuttdQPLAumwrS5:1aH30h0/RoZ7euttCsumwO5

Score

10^/10

gandcrab backdoor discovery ransomware

Malware Config

Signatures

GandCrab payload 3 IoCs

resource	yara_rule
behavioral2/memory/4680-3-0x0000000000400000-0x000000000048A000-memory.dmp	family_gandcrab
behavioral2/memory/4680-4-0x00000000021F0000-0x0000000002207000-memory.dmp	family_gandcrab
behavioral2/memory/4680-8-0x0000000000400000-0x000000000042C000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab
Gandcrab family
gandcrab

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2852	4680	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21f6bc83c707a1c0ec31fecd6177b15b19889ed803feb81c49d342f520fed6e1.exe

C:\Users\Admin\AppData\Local\Temp\21f6bc83c707a1c0ec31fecd6177b15b19889ed803feb81c49d342f520fed6e1.exe
"C:\Users\Admin\AppData\Local\Temp\21f6bc83c707a1c0ec31fecd6177b15b19889ed803feb81c49d342f520fed6e1.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4680 -s 468
  2⤵
  - Program crash
  PID:2852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4680 -ip 4680
1⤵
PID:1448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4680-2-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4680-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/4680-3-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/4680-4-0x00000000021F0000-0x0000000002207000-memory.dmp

Filesize
92KB

Download
memory/4680-8-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download