gandcrab | 6831771a2c041567dea81a166538a50d4a5d1341339a342ed4537dfbfc652699

Analysis

max time kernel
154s
max time network
206s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 20:29

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General

Target

2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
Size

308KB
MD5

3922dbeb90b842a7f55959b171047597
SHA1

e674effcbd21a0a26842bd07b67196f9f5ff90f8
SHA256

6831771a2c041567dea81a166538a50d4a5d1341339a342ed4537dfbfc652699
SHA512

2682aabf50cfe1080c51e38653a772b926dae2956833a7da6edbf5fe4b63656096214f0fbe139a2a6c2c3bcfd56cfaa181d4e40f29a10916c088c2ed66068600
SSDEEP

6144:JzL7ShWDLVzVNam6GxI29dqG3KdYAYqTuPZp:XDHNam62ZdKmZmuPH

Score

10^/10

gandcrab backdoor ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/4908-2-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral2/memory/4908-4-0x000000000AA90000-0x000000000AAA7000-memory.dmp	family_gandcrab

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

Detects Reflective DLL injection artifacts 2 IoCs

resource	yara_rule
behavioral2/memory/4908-2-0x0000000000400000-0x0000000001400000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral2/memory/4908-4-0x000000000AA90000-0x000000000AAA7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 1 IoCs

resource	yara_rule
behavioral2/memory/4908-4-0x000000000AA90000-0x000000000AAA7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4908-2-0x0000000000400000-0x0000000001400000-memory.dmp	Gandcrab
behavioral2/memory/4908-4-0x000000000AA90000-0x000000000AAA7000-memory.dmp	Gandcrab

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4984	4908	WerFault.exe	87

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe"
1⤵
- Checks processor information in registry
PID:4908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 500
  2⤵
  - Program crash
  PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4908 -ip 4908
1⤵
PID:2568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4908-1-0x000000000AAE0000-0x000000000ABE0000-memory.dmp

Filesize
1024KB

Download
memory/4908-2-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/4908-4-0x000000000AA90000-0x000000000AAA7000-memory.dmp

Filesize
92KB

Download
memory/4908-9-0x000000000AAE0000-0x000000000ABE0000-memory.dmp

Filesize
1024KB

Download