gandcrab | d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22

General

Target

d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
Size

283KB
MD5

ef90e1bd09700e01b80e041c0355473a
SHA1

3b02ccee40f8815c96c957bfa083db58880f140b
SHA256

d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22
SHA512

a660c3aa425f10923946069200bdfa582a01f55a93348289f6bec4645b33c1ec5a80d0f49cc617acabff620ca5f3c0a0e8ec126498e8ee8837de511f690cd43b

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/808-115-0x00000000001D0000-0x00000000001E7000-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:

d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\ykefcujzpgq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\umlprz.exe\""	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.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:

d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe

description	ioc	process
File opened (read-only)	\??\F:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\H:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\J:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\R:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\V:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\E:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\L:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\N:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\P:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\W:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\X:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\Y:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\A:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\G:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\I:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\M:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\T:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\U:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\Z:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\B:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\O:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\Q:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\S:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
File opened (read-only)	\??\K:	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.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:

d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe

pid	process
808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe

description	pid	process	target process
PID 808 wrote to memory of 2016	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 2016	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 2016	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3164	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3164	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3164	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3632	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3632	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3632	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 2052	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 2052	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 2052	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3716	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3716	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3716	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3140	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3140	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe
PID 808 wrote to memory of 3140	808	d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.exe
"C:\Users\Admin\AppData\Local\Temp\d3f4720a7f6e7795f60b320744392496dc484c676af56bbb9b55eb406452eb22.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 carder.bit ns1.wowservers.ru
2⤵
PID:2016

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:3164

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:3632

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:2052

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:3716

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:3140

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

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Downloads

memory/808-114-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/808-115-0x00000000001D0000-0x00000000001E7000-memory.dmp

Filesize
92KB

Download
memory/2016-116-0x0000000000000000-mapping.dmp

Download
memory/2052-119-0x0000000000000000-mapping.dmp

Download
memory/3140-121-0x0000000000000000-mapping.dmp

Download
memory/3164-117-0x0000000000000000-mapping.dmp

Download
memory/3632-118-0x0000000000000000-mapping.dmp

Download
memory/3716-120-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads