gandcrab | 5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514

General

Target

5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
Size

244KB
MD5

03fd55a3ebf563afece537f89102a6d5
SHA1

107d5c3c703da190efa91c00f3d95b4c993ef135
SHA256

5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514
SHA512

bbc38a6b840717ab3c14d2477e0e9522a72b8977f18b576c88f185bf30273b237ee47588941096f2278d8da05821748d4f6ff84089df7e1d51f3f7520f43ffc7

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/808-115-0x0000000002180000-0x0000000002197000-memory.dmp	family_gandcrab

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\afaqbqwfjuq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\dgmsnf.exe\""	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe

Enumerates connected drives 3 TTPs 24 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:

5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe

description	ioc	process
File opened (read-only)	\??\Q:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\T:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\U:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\Y:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\E:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\M:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\N:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\P:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\L:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\O:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\R:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\V:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\F:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\I:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\J:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\K:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\X:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\Z:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\A:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\G:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\S:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\B:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\H:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
File opened (read-only)	\??\W:	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.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:

5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe

pid	process
808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe

description	pid	process	target process
PID 808 wrote to memory of 96	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 96	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 96	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2816	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2816	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2816	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 1548	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 1548	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 1548	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2208	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2208	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2208	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2264	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2264	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2264	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2420	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2420	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 2420	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 3164	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 3164	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe
PID 808 wrote to memory of 3164	808	5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe
"C:\Users\Admin\AppData\Local\Temp\5be7cf3d8cc6d2f38633d4bd3c749c04bb927adb3fc397c579faf54b16332514.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:808

C:\Windows\SysWOW64\nslookup.exe
nslookup zonealarm.bit ns1.corp-servers.ru
2⤵
PID:96

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.corp-servers.ru
2⤵
PID:2816

C:\Windows\SysWOW64\nslookup.exe
nslookup zonealarm.bit ns2.corp-servers.ru
2⤵
PID:1548

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.corp-servers.ru
2⤵
PID:2208

C:\Windows\SysWOW64\nslookup.exe
nslookup zonealarm.bit ns1.corp-servers.ru
2⤵
PID:2264

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.corp-servers.ru
2⤵
PID:2420

C:\Windows\SysWOW64\nslookup.exe
nslookup zonealarm.bit ns2.corp-servers.ru
2⤵
PID:3164

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

Loading Replay Monitor...

Downloads

memory/96-116-0x0000000000000000-mapping.dmp

Download
memory/808-115-0x0000000002180000-0x0000000002197000-memory.dmp

Filesize
92KB

Download
memory/808-114-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1548-118-0x0000000000000000-mapping.dmp

Download
memory/2208-119-0x0000000000000000-mapping.dmp

Download
memory/2264-120-0x0000000000000000-mapping.dmp

Download
memory/2420-121-0x0000000000000000-mapping.dmp

Download
memory/2816-117-0x0000000000000000-mapping.dmp

Download
memory/3164-122-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads