gandcrab | 481ad8f30ca4464b61a7886eb41db0e0e59f5d6fb65389b1e9b18f82f985ed5f

Analysis

max time kernel
163s
max time network
173s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/03/2024, 01:36

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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

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

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

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

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

pid	Process
2536	3802078969745db373c08aad4c6dfc12.exe
2536	3802078969745db373c08aad4c6dfc12.exe

Suspicious use of SetWindowsHookAW 64 IoCs

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

description	pid	Process	procid_target
PID 2536 wrote to memory of 2540	2536	3802078969745db373c08aad4c6dfc12.exe	27
PID 2536 wrote to memory of 2540	2536	3802078969745db373c08aad4c6dfc12.exe	27
PID 2536 wrote to memory of 2540	2536	3802078969745db373c08aad4c6dfc12.exe	27
PID 2536 wrote to memory of 2540	2536	3802078969745db373c08aad4c6dfc12.exe	27
PID 2536 wrote to memory of 2468	2536	3802078969745db373c08aad4c6dfc12.exe	30
PID 2536 wrote to memory of 2468	2536	3802078969745db373c08aad4c6dfc12.exe	30
PID 2536 wrote to memory of 2468	2536	3802078969745db373c08aad4c6dfc12.exe	30
PID 2536 wrote to memory of 2468	2536	3802078969745db373c08aad4c6dfc12.exe	30
PID 2536 wrote to memory of 268	2536	3802078969745db373c08aad4c6dfc12.exe	33
PID 2536 wrote to memory of 268	2536	3802078969745db373c08aad4c6dfc12.exe	33
PID 2536 wrote to memory of 268	2536	3802078969745db373c08aad4c6dfc12.exe	33
PID 2536 wrote to memory of 268	2536	3802078969745db373c08aad4c6dfc12.exe	33
PID 2536 wrote to memory of 2788	2536	3802078969745db373c08aad4c6dfc12.exe	35
PID 2536 wrote to memory of 2788	2536	3802078969745db373c08aad4c6dfc12.exe	35
PID 2536 wrote to memory of 2788	2536	3802078969745db373c08aad4c6dfc12.exe	35
PID 2536 wrote to memory of 2788	2536	3802078969745db373c08aad4c6dfc12.exe	35
PID 2536 wrote to memory of 2832	2536	3802078969745db373c08aad4c6dfc12.exe	37
PID 2536 wrote to memory of 2832	2536	3802078969745db373c08aad4c6dfc12.exe	37
PID 2536 wrote to memory of 2832	2536	3802078969745db373c08aad4c6dfc12.exe	37
PID 2536 wrote to memory of 2832	2536	3802078969745db373c08aad4c6dfc12.exe	37
PID 2536 wrote to memory of 612	2536	3802078969745db373c08aad4c6dfc12.exe	39
PID 2536 wrote to memory of 612	2536	3802078969745db373c08aad4c6dfc12.exe	39
PID 2536 wrote to memory of 612	2536	3802078969745db373c08aad4c6dfc12.exe	39
PID 2536 wrote to memory of 612	2536	3802078969745db373c08aad4c6dfc12.exe	39
PID 2536 wrote to memory of 1732	2536	3802078969745db373c08aad4c6dfc12.exe	41
PID 2536 wrote to memory of 1732	2536	3802078969745db373c08aad4c6dfc12.exe	41
PID 2536 wrote to memory of 1732	2536	3802078969745db373c08aad4c6dfc12.exe	41
PID 2536 wrote to memory of 1732	2536	3802078969745db373c08aad4c6dfc12.exe	41
PID 2536 wrote to memory of 2136	2536	3802078969745db373c08aad4c6dfc12.exe	43
PID 2536 wrote to memory of 2136	2536	3802078969745db373c08aad4c6dfc12.exe	43
PID 2536 wrote to memory of 2136	2536	3802078969745db373c08aad4c6dfc12.exe	43
PID 2536 wrote to memory of 2136	2536	3802078969745db373c08aad4c6dfc12.exe	43
PID 2536 wrote to memory of 2384	2536	3802078969745db373c08aad4c6dfc12.exe	45
PID 2536 wrote to memory of 2384	2536	3802078969745db373c08aad4c6dfc12.exe	45
PID 2536 wrote to memory of 2384	2536	3802078969745db373c08aad4c6dfc12.exe	45
PID 2536 wrote to memory of 2384	2536	3802078969745db373c08aad4c6dfc12.exe	45
PID 2536 wrote to memory of 1868	2536	3802078969745db373c08aad4c6dfc12.exe	47
PID 2536 wrote to memory of 1868	2536	3802078969745db373c08aad4c6dfc12.exe	47
PID 2536 wrote to memory of 1868	2536	3802078969745db373c08aad4c6dfc12.exe	47
PID 2536 wrote to memory of 1868	2536	3802078969745db373c08aad4c6dfc12.exe	47
PID 2536 wrote to memory of 944	2536	3802078969745db373c08aad4c6dfc12.exe	49
PID 2536 wrote to memory of 944	2536	3802078969745db373c08aad4c6dfc12.exe	49
PID 2536 wrote to memory of 944	2536	3802078969745db373c08aad4c6dfc12.exe	49
PID 2536 wrote to memory of 944	2536	3802078969745db373c08aad4c6dfc12.exe	49
PID 2536 wrote to memory of 2492	2536	3802078969745db373c08aad4c6dfc12.exe	51
PID 2536 wrote to memory of 2492	2536	3802078969745db373c08aad4c6dfc12.exe	51
PID 2536 wrote to memory of 2492	2536	3802078969745db373c08aad4c6dfc12.exe	51
PID 2536 wrote to memory of 2492	2536	3802078969745db373c08aad4c6dfc12.exe	51
PID 2536 wrote to memory of 2292	2536	3802078969745db373c08aad4c6dfc12.exe	53
PID 2536 wrote to memory of 2292	2536	3802078969745db373c08aad4c6dfc12.exe	53
PID 2536 wrote to memory of 2292	2536	3802078969745db373c08aad4c6dfc12.exe	53
PID 2536 wrote to memory of 2292	2536	3802078969745db373c08aad4c6dfc12.exe	53
PID 2536 wrote to memory of 3024	2536	3802078969745db373c08aad4c6dfc12.exe	55
PID 2536 wrote to memory of 3024	2536	3802078969745db373c08aad4c6dfc12.exe	55
PID 2536 wrote to memory of 3024	2536	3802078969745db373c08aad4c6dfc12.exe	55
PID 2536 wrote to memory of 3024	2536	3802078969745db373c08aad4c6dfc12.exe	55
PID 2536 wrote to memory of 2360	2536	3802078969745db373c08aad4c6dfc12.exe	57
PID 2536 wrote to memory of 2360	2536	3802078969745db373c08aad4c6dfc12.exe	57
PID 2536 wrote to memory of 2360	2536	3802078969745db373c08aad4c6dfc12.exe	57
PID 2536 wrote to memory of 2360	2536	3802078969745db373c08aad4c6dfc12.exe	57
PID 2536 wrote to memory of 1108	2536	3802078969745db373c08aad4c6dfc12.exe	59
PID 2536 wrote to memory of 1108	2536	3802078969745db373c08aad4c6dfc12.exe	59
PID 2536 wrote to memory of 1108	2536	3802078969745db373c08aad4c6dfc12.exe	59
PID 2536 wrote to memory of 1108	2536	3802078969745db373c08aad4c6dfc12.exe	59

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 Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

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