gandcrab | bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a

General

Target

bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
Size

258KB
MD5

15e6ab43252a8273a5548ae10b80d47c
SHA1

26d681365e0f878ccfe7063f0583df7674689ac6
SHA256

bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a
SHA512

cc9ebee07669580ff34b2c7750b7057893a208c8e3b7ac902e80cff580483f02c05574c0fec85c6066ee8e7330a078a645aa2259fb6b3854180060911e82e197

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1708-62-0x0000000000230000-0x0000000000246000-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:

bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\wqmclerxbtf = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe"	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.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:

bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe

description	ioc	process
File opened (read-only)	\??\E:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\O:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\S:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\Y:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\Z:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\F:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\N:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\P:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\T:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\W:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\G:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\H:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\L:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\R:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\U:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\V:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\A:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\B:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\I:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\J:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\K:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\M:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\Q:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
File opened (read-only)	\??\X:	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.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:

bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe

pid	process
1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe

description	pid	process	target process
PID 1708 wrote to memory of 664	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 664	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 664	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 664	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 1704	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 1704	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 1704	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 1704	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 964	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 964	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 964	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 964	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 296	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 296	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 296	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 296	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 1980	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 1980	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 1980	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe
PID 1708 wrote to memory of 1980	1708	bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe
"C:\Users\Admin\AppData\Local\Temp\bc7e267df48ca871a22a5ec95187671b9f96eda0fa709575389c263a00849c8a.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\SysWOW64\nslookup.exe
nslookup politiaromana.bit ns1.virmach.ru
2⤵
PID:664

C:\Windows\SysWOW64\nslookup.exe
nslookup malwarehunterteam.bit ns1.virmach.ru
2⤵
PID:1704

C:\Windows\SysWOW64\nslookup.exe
nslookup gdcb.bit ns2.virmach.ru
2⤵
PID:964

C:\Windows\SysWOW64\nslookup.exe
nslookup politiaromana.bit ns2.virmach.ru
2⤵
PID:296

C:\Windows\SysWOW64\nslookup.exe
nslookup malwarehunterteam.bit ns2.virmach.ru
2⤵
PID:1980

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

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Downloads

memory/296-66-0x0000000000000000-mapping.dmp

Download
memory/664-63-0x0000000000000000-mapping.dmp

Download
memory/964-65-0x0000000000000000-mapping.dmp

Download
memory/1704-64-0x0000000000000000-mapping.dmp

Download
memory/1708-60-0x00000000762C1000-0x00000000762C3000-memory.dmp

Filesize
8KB

Download
memory/1708-62-0x0000000000230000-0x0000000000246000-memory.dmp

Filesize
88KB

Download
memory/1708-61-0x0000000000400000-0x00000000007AE000-memory.dmp

Filesize
3.7MB

Download
memory/1980-67-0x0000000000000000-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