gandcrab | 1b9ce5f7d78b47815109f0b367a3e04881aba39ac258d5debc0a7c11f6200cd1

Analysis

max time kernel
144s
max time network
144s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
11/07/2024, 04:57

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General

Target

2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
Size

167KB
MD5

5d90bce49833d0067d20af944755ebdd
SHA1

9d3a241798a876c17781017441272ace62428a01
SHA256

1b9ce5f7d78b47815109f0b367a3e04881aba39ac258d5debc0a7c11f6200cd1
SHA512

c6be034f204fda3bfa83a39d38ae9f2176fa081209865bdabfb48374ed9d455f823b4266231165117e58ccfbfea6f622f062d2315815ce332340a0710c9f2089
SSDEEP

3072:/YHVHd2NFMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZped:/yZqqDL6oREzZpK

Score

10^/10

gandcrab backdoor persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/2128-0-0x0000000000400000-0x000000000042C000-memory.dmp	family_gandcrab
behavioral1/memory/2128-4-0x0000000000400000-0x000000000042C000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2128-0-0x0000000000400000-0x000000000042C000-memory.dmp	upx
behavioral1/memory/2128-4-0x0000000000400000-0x000000000042C000-memory.dmp	upx

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\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\kojnuuoexaq = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe"	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.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)	\??\E:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\M:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\P:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\R:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\T:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\X:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\Z:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\A:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\K:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\N:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\S:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\Y:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\J:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\O:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\G:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\H:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\I:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\L:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\Q:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\U:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\V:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\B:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
File opened (read-only)	\??\W:	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2840	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	30
PID 2128 wrote to memory of 2840	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	30
PID 2128 wrote to memory of 2840	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	30
PID 2128 wrote to memory of 2840	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	30
PID 2128 wrote to memory of 2732	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	33
PID 2128 wrote to memory of 2732	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	33
PID 2128 wrote to memory of 2732	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	33
PID 2128 wrote to memory of 2732	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	33
PID 2128 wrote to memory of 2600	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	35
PID 2128 wrote to memory of 2600	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	35
PID 2128 wrote to memory of 2600	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	35
PID 2128 wrote to memory of 2600	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	35
PID 2128 wrote to memory of 1740	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	37
PID 2128 wrote to memory of 1740	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	37
PID 2128 wrote to memory of 1740	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	37
PID 2128 wrote to memory of 1740	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	37
PID 2128 wrote to memory of 1916	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	39
PID 2128 wrote to memory of 1916	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	39
PID 2128 wrote to memory of 1916	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	39
PID 2128 wrote to memory of 1916	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	39
PID 2128 wrote to memory of 2088	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	41
PID 2128 wrote to memory of 2088	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	41
PID 2128 wrote to memory of 2088	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	41
PID 2128 wrote to memory of 2088	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	41
PID 2128 wrote to memory of 2880	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	43
PID 2128 wrote to memory of 2880	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	43
PID 2128 wrote to memory of 2880	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	43
PID 2128 wrote to memory of 2880	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	43
PID 2128 wrote to memory of 2656	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	45
PID 2128 wrote to memory of 2656	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	45
PID 2128 wrote to memory of 2656	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	45
PID 2128 wrote to memory of 2656	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	45
PID 2128 wrote to memory of 2788	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	47
PID 2128 wrote to memory of 2788	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	47
PID 2128 wrote to memory of 2788	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	47
PID 2128 wrote to memory of 2788	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	47
PID 2128 wrote to memory of 580	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	49
PID 2128 wrote to memory of 580	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	49
PID 2128 wrote to memory of 580	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	49
PID 2128 wrote to memory of 580	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	49
PID 2128 wrote to memory of 2176	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	51
PID 2128 wrote to memory of 2176	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	51
PID 2128 wrote to memory of 2176	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	51
PID 2128 wrote to memory of 2176	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	51
PID 2128 wrote to memory of 1640	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	53
PID 2128 wrote to memory of 1640	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	53
PID 2128 wrote to memory of 1640	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	53
PID 2128 wrote to memory of 1640	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	53
PID 2128 wrote to memory of 2932	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	55
PID 2128 wrote to memory of 2932	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	55
PID 2128 wrote to memory of 2932	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	55
PID 2128 wrote to memory of 2932	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	55
PID 2128 wrote to memory of 936	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	57
PID 2128 wrote to memory of 936	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	57
PID 2128 wrote to memory of 936	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	57
PID 2128 wrote to memory of 936	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	57
PID 2128 wrote to memory of 324	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	59
PID 2128 wrote to memory of 324	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	59
PID 2128 wrote to memory of 324	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	59
PID 2128 wrote to memory of 324	2128	2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe	59

C:\Users\Admin\AppData\Local\Temp\2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-11_5d90bce49833d0067d20af944755ebdd_gandcrab.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2840
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2732
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2600
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1740
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1916
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2088
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2880
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2656
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2788
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:580
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2176
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1640
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2932
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:936
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:324

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

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Downloads

memory/2128-0-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2128-4-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download