gandcrab | 6831771a2c041567dea81a166538a50d4a5d1341339a342ed4537dfbfc652699

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13/03/2024, 20:29

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

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 persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2240-2-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2240-4-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab
behavioral1/memory/2240-11-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2240-14-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab

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

Detects Reflective DLL injection artifacts 4 IoCs

resource	yara_rule
behavioral1/memory/2240-2-0x0000000000400000-0x0000000001400000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2240-4-0x0000000000220000-0x0000000000237000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2240-11-0x0000000000400000-0x0000000001400000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2240-14-0x0000000000220000-0x0000000000237000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 2 IoCs

resource	yara_rule
behavioral1/memory/2240-4-0x0000000000220000-0x0000000000237000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2240-14-0x0000000000220000-0x0000000000237000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2240-2-0x0000000000400000-0x0000000001400000-memory.dmp	Gandcrab
behavioral1/memory/2240-4-0x0000000000220000-0x0000000000237000-memory.dmp	Gandcrab
behavioral1/memory/2240-11-0x0000000000400000-0x0000000001400000-memory.dmp	Gandcrab
behavioral1/memory/2240-14-0x0000000000220000-0x0000000000237000-memory.dmp	Gandcrab

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\szlkbykrnul = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\qomhqr.exe\""	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe

Enumerates connected drives 3 TTPs 23 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\M:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe

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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe
2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2636	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	28
PID 2240 wrote to memory of 2636	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	28
PID 2240 wrote to memory of 2636	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	28
PID 2240 wrote to memory of 2636	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	28
PID 2240 wrote to memory of 2560	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	30
PID 2240 wrote to memory of 2560	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	30
PID 2240 wrote to memory of 2560	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	30
PID 2240 wrote to memory of 2560	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	30
PID 2240 wrote to memory of 2528	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	32
PID 2240 wrote to memory of 2528	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	32
PID 2240 wrote to memory of 2528	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	32
PID 2240 wrote to memory of 2528	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	32
PID 2240 wrote to memory of 2456	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	34
PID 2240 wrote to memory of 2456	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	34
PID 2240 wrote to memory of 2456	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	34
PID 2240 wrote to memory of 2456	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	34
PID 2240 wrote to memory of 3048	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	36
PID 2240 wrote to memory of 3048	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	36
PID 2240 wrote to memory of 3048	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	36
PID 2240 wrote to memory of 3048	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	36
PID 2240 wrote to memory of 1564	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	40
PID 2240 wrote to memory of 1564	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	40
PID 2240 wrote to memory of 1564	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	40
PID 2240 wrote to memory of 1564	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	40
PID 2240 wrote to memory of 1740	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	42
PID 2240 wrote to memory of 1740	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	42
PID 2240 wrote to memory of 1740	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	42
PID 2240 wrote to memory of 1740	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	42
PID 2240 wrote to memory of 2336	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	44
PID 2240 wrote to memory of 2336	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	44
PID 2240 wrote to memory of 2336	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	44
PID 2240 wrote to memory of 2336	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	44
PID 2240 wrote to memory of 340	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	46
PID 2240 wrote to memory of 340	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	46
PID 2240 wrote to memory of 340	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	46
PID 2240 wrote to memory of 340	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	46
PID 2240 wrote to memory of 1456	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	48
PID 2240 wrote to memory of 1456	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	48
PID 2240 wrote to memory of 1456	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	48
PID 2240 wrote to memory of 1456	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	48
PID 2240 wrote to memory of 820	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	50
PID 2240 wrote to memory of 820	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	50
PID 2240 wrote to memory of 820	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	50
PID 2240 wrote to memory of 820	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	50
PID 2240 wrote to memory of 2812	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	52
PID 2240 wrote to memory of 2812	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	52
PID 2240 wrote to memory of 2812	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	52
PID 2240 wrote to memory of 2812	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	52
PID 2240 wrote to memory of 1676	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	54
PID 2240 wrote to memory of 1676	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	54
PID 2240 wrote to memory of 1676	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	54
PID 2240 wrote to memory of 1676	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	54
PID 2240 wrote to memory of 1744	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	56
PID 2240 wrote to memory of 1744	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	56
PID 2240 wrote to memory of 1744	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	56
PID 2240 wrote to memory of 1744	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	56
PID 2240 wrote to memory of 1148	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	58
PID 2240 wrote to memory of 1148	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	58
PID 2240 wrote to memory of 1148	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	58
PID 2240 wrote to memory of 1148	2240	2024-03-13_3922dbeb90b842a7f55959b171047597_karagany_mafia.exe	58

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⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2636
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2560
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2528
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2456
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:3048
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1564
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1740
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2336
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:340
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1456
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:820
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2812
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1676
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1744
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2240-1-0x000000000AB80000-0x000000000AC80000-memory.dmp

Filesize
1024KB

Download
memory/2240-2-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2240-4-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2240-11-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2240-13-0x000000000AB80000-0x000000000AC80000-memory.dmp

Filesize
1024KB

Download
memory/2240-14-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download