gandcrab | 4c627bd7eac3f6ada4ebf45c0b22e79b1021ac02718db806c75b8619dda1b9ff

General

Target

2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
Size

308KB
MD5

46bbbaf5f2214db4f9dda2120b2e43b2
SHA1

2ea50b82b4712218d322a2bc0a296552111bd31b
SHA256

4c627bd7eac3f6ada4ebf45c0b22e79b1021ac02718db806c75b8619dda1b9ff
SHA512

c3265307837216e0a3012cf3d3c511375778852a1f32fd603e66df744862b0a8272b0cc36f77b5b453bd7de83de4543fd14e419daaac6a232f75daa73faa7fda
SSDEEP

6144:rzL7ShWDLVzVNam6GxI29dqG3KdYAYqTuPZp:ZDHNam62ZdKmZmuPH

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2236-2-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab
behavioral1/memory/2236-1-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2236-9-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab

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

Detects Reflective DLL injection artifacts 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2236-2-0x0000000000220000-0x0000000000237000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2236-1-0x0000000000400000-0x0000000001400000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2236-9-0x0000000000400000-0x0000000001400000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2236-2-0x0000000000220000-0x0000000000237000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2236-2-0x0000000000220000-0x0000000000237000-memory.dmp	Gandcrab
behavioral1/memory/2236-1-0x0000000000400000-0x0000000001400000-memory.dmp	Gandcrab
behavioral1/memory/2236-9-0x0000000000400000-0x0000000001400000-memory.dmp	Gandcrab

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\fxhixcgnbgo = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\fyeovr.exe\""	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_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

Processes:

2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe

description	ioc	process
File opened (read-only)	\??\E:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_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

Processes:

2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe

pid process

2236 2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
2236 2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe

pid	process
2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe

description	pid	process	target process
PID 2236 wrote to memory of 2652	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2652	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2652	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2652	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2508	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2508	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2508	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2508	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2704	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2704	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2704	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2704	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 1644	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 1644	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 1644	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 1644	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 836	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 836	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 836	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 836	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2644	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2644	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2644	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe
PID 2236 wrote to memory of 2644	2236	2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_46bbbaf5f2214db4f9dda2120b2e43b2_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:2236

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2652

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:2508

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:2704

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:1644

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:836

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2236-2-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2236-1-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2236-9-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads