gandcrab | 2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59

General

Target

2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
Size

266KB
MD5

bff3a050754a86b2497dec8259e09894
SHA1

dad70422ac6b617944cd355677d8c17129cc1268
SHA256

2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59
SHA512

c849d9c05bd663ba5fc857cf34fecf3b8c7221745e2eca4440d9ce6d7f9e98ffdf4af14e2a4a5b721c2e03b35bcc4f73df9c09ed52c6c95047fc375e7ca38ec4

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1968-63-0x0000000000270000-0x0000000000286000-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:

2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\urmxkextjdj = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe"	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.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:

2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe

description	ioc	process
File opened (read-only)	\??\U:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\A:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\B:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\E:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\H:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\M:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\R:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\T:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\W:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\Z:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\G:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\K:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\N:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\O:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\P:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\J:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\L:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\S:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\V:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\Y:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\F:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\I:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\Q:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
File opened (read-only)	\??\X:	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.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:

2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe

pid	process
1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe

description	pid	process	target process
PID 1968 wrote to memory of 1692	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1692	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1692	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1692	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1372	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1372	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1372	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1372	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 548	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 548	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 548	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 548	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1504	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1504	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1504	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1504	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1764	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1764	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1764	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe
PID 1968 wrote to memory of 1764	1968	2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe
"C:\Users\Admin\AppData\Local\Temp\2ec586514ac5690bc7780439f16c126c6a7e5bf41380c0f6bb1b8d067af21b59.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1968

C:\Windows\SysWOW64\nslookup.exe
nslookup politiaromana.bit ns1.virmach.ru
2⤵
PID:1692

C:\Windows\SysWOW64\nslookup.exe
nslookup malwarehunterteam.bit ns1.virmach.ru
2⤵
PID:1372

C:\Windows\SysWOW64\nslookup.exe
nslookup gdcb.bit ns2.virmach.ru
2⤵
PID:548

C:\Windows\SysWOW64\nslookup.exe
nslookup politiaromana.bit ns2.virmach.ru
2⤵
PID:1504

C:\Windows\SysWOW64\nslookup.exe
nslookup malwarehunterteam.bit ns2.virmach.ru
2⤵
PID:1764

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/548-66-0x0000000000000000-mapping.dmp

Download
memory/1372-65-0x0000000000000000-mapping.dmp

Download
memory/1504-67-0x0000000000000000-mapping.dmp

Download
memory/1692-64-0x0000000000000000-mapping.dmp

Download
memory/1764-68-0x0000000000000000-mapping.dmp

Download
memory/1968-60-0x00000000767B1000-0x00000000767B3000-memory.dmp

Filesize
8KB

Download
memory/1968-61-0x0000000000230000-0x0000000000249000-memory.dmp

Filesize
100KB

Download
memory/1968-62-0x0000000000400000-0x000000000074C000-memory.dmp

Filesize
3.3MB

Download
memory/1968-63-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads