gandcrab | 481ad8f30ca4464b61a7886eb41db0e0e59f5d6fb65389b1e9b18f82f985ed5f

General

Target

3802078969745db373c08aad4c6dfc12.exe
Size

300KB
MD5

3802078969745db373c08aad4c6dfc12
SHA1

8767190ced02b19d4d515f3b53ae5537e2296e97
SHA256

481ad8f30ca4464b61a7886eb41db0e0e59f5d6fb65389b1e9b18f82f985ed5f
SHA512

53ebeadc8d3f418dbdbdf54a180c0307fab650b2e5bf8de341a80fd8ac11344f577666e09f80a245c655d591dfc46d946b21baf7b45f1ab1928fb1d2489e38b3
SSDEEP

6144:ovEANMO1UnseVgkV0xwvfxnhLTiusLe1740B:nuM0Unsna5mut40B

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2536-1-0x0000000000400000-0x0000000003B9B000-memory.dmp	family_gandcrab
behavioral1/memory/2536-3-0x0000000000240000-0x0000000000257000-memory.dmp	family_gandcrab
behavioral1/memory/2536-10-0x0000000000400000-0x0000000003B9B000-memory.dmp	family_gandcrab
behavioral1/memory/2536-13-0x0000000000240000-0x0000000000257000-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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

3802078969745db373c08aad4c6dfc12.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\phteqzguuzh = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\grhzaj.exe\""	3802078969745db373c08aad4c6dfc12.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:

3802078969745db373c08aad4c6dfc12.exe

description	ioc	process
File opened (read-only)	\??\V:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\A:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\U:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\S:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\Z:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\H:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\I:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\M:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\N:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\O:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\T:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\X:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\Y:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\E:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\J:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\K:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\L:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\P:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\Q:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\R:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\W:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\B:	3802078969745db373c08aad4c6dfc12.exe
File opened (read-only)	\??\G:	3802078969745db373c08aad4c6dfc12.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:

3802078969745db373c08aad4c6dfc12.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	3802078969745db373c08aad4c6dfc12.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3802078969745db373c08aad4c6dfc12.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	3802078969745db373c08aad4c6dfc12.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

3802078969745db373c08aad4c6dfc12.exe

pid process

2536 3802078969745db373c08aad4c6dfc12.exe
2536 3802078969745db373c08aad4c6dfc12.exe

Suspicious use of SetWindowsHookAW 64 IoCs

Processes:

3802078969745db373c08aad4c6dfc12.exe

pid	process
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

3802078969745db373c08aad4c6dfc12.exe

description	pid	process	target process
PID 2536 wrote to memory of 2540	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2540	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2540	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2540	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2468	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2468	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2468	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2468	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 268	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 268	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 268	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 268	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2788	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2788	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2788	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2788	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2832	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2832	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2832	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2832	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 612	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 612	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 612	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 612	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1732	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1732	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1732	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1732	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2136	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2136	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2136	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2136	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2384	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2384	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2384	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2384	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1868	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1868	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1868	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1868	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 944	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 944	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 944	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 944	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2492	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2492	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2492	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2492	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2292	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2292	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2292	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2292	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 3024	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 3024	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 3024	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 3024	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2360	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2360	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2360	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 2360	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1108	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1108	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1108	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe
PID 2536 wrote to memory of 1108	2536	3802078969745db373c08aad4c6dfc12.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\3802078969745db373c08aad4c6dfc12.exe
"C:\Users\Admin\AppData\Local\Temp\3802078969745db373c08aad4c6dfc12.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookAW
- Suspicious use of WriteProcessMemory
PID:2536

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2540

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:2468

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:268

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:2788

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2832

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:612

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:1732

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:2136

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2384

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:1868

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:944

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:2492

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2292

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:3024

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:2360

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:1108

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:400

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:1132

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:1276

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:2888

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:900

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:1616

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:2232

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2536-0-0x0000000000220000-0x000000000023B000-memory.dmp

Filesize
108KB

Download
memory/2536-1-0x0000000000400000-0x0000000003B9B000-memory.dmp

Filesize
55.6MB

Download
memory/2536-3-0x0000000000240000-0x0000000000257000-memory.dmp

Filesize
92KB

Download
memory/2536-10-0x0000000000400000-0x0000000003B9B000-memory.dmp

Filesize
55.6MB

Download
memory/2536-12-0x0000000000220000-0x000000000023B000-memory.dmp

Filesize
108KB

Download
memory/2536-13-0x0000000000240000-0x0000000000257000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads