gandcrab | 9dd1935fcac2161ef8dc46b31ae921529cddd9eefa3585549a56224aa27e6786

Analysis

max time kernel
150s
max time network
144s
platform
windows7_x64
resource
win7-20230705-en
resource tags

arch:x64arch:x86image:win7-20230705-enlocale:en-usos:windows7-x64system
submitted
09/07/2023, 11:10

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General

Target

8ad1e7e01d7947exeexeexeex.exe
Size

145KB
MD5

8ad1e7e01d7947544a56b2f333a0d471
SHA1

c0e3c05b728fa2421ef475bfbb25fa003c20056b
SHA256

9dd1935fcac2161ef8dc46b31ae921529cddd9eefa3585549a56224aa27e6786
SHA512

f186611d10c4c723c3a9679f1c72af02cde2245f9efef476749fc1d3bd711d90b335b2ccfc07ce4baee53fd16c3c9629e053a82b910021ecac3b968794a0a99d
SSDEEP

3072:BYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:ByOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/2272-54-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral1/memory/2272-58-0x0000000000400000-0x0000000000428000-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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-511725148-388773979-2853099937-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	8ad1e7e01d7947exeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-511725148-388773979-2853099937-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\qtrhzqmewgk = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8ad1e7e01d7947exeexeexeex.exe"	8ad1e7e01d7947exeexeexeex.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

description	ioc	Process
File opened (read-only)	\??\Z:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\A:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\L:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\M:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\W:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\X:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\Y:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\F:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\I:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\K:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\N:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\Q:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\V:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\G:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\H:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\J:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\O:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\T:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\U:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\B:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\E:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\P:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\R:	8ad1e7e01d7947exeexeexeex.exe
File opened (read-only)	\??\S:	8ad1e7e01d7947exeexeexeex.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	8ad1e7e01d7947exeexeexeex.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	8ad1e7e01d7947exeexeexeex.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	8ad1e7e01d7947exeexeexeex.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2272	8ad1e7e01d7947exeexeexeex.exe
2272	8ad1e7e01d7947exeexeexeex.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 1496	2272	8ad1e7e01d7947exeexeexeex.exe	28
PID 2272 wrote to memory of 1496	2272	8ad1e7e01d7947exeexeexeex.exe	28
PID 2272 wrote to memory of 1496	2272	8ad1e7e01d7947exeexeexeex.exe	28
PID 2272 wrote to memory of 1496	2272	8ad1e7e01d7947exeexeexeex.exe	28
PID 2272 wrote to memory of 2220	2272	8ad1e7e01d7947exeexeexeex.exe	30
PID 2272 wrote to memory of 2220	2272	8ad1e7e01d7947exeexeexeex.exe	30
PID 2272 wrote to memory of 2220	2272	8ad1e7e01d7947exeexeexeex.exe	30
PID 2272 wrote to memory of 2220	2272	8ad1e7e01d7947exeexeexeex.exe	30
PID 2272 wrote to memory of 2084	2272	8ad1e7e01d7947exeexeexeex.exe	32
PID 2272 wrote to memory of 2084	2272	8ad1e7e01d7947exeexeexeex.exe	32
PID 2272 wrote to memory of 2084	2272	8ad1e7e01d7947exeexeexeex.exe	32
PID 2272 wrote to memory of 2084	2272	8ad1e7e01d7947exeexeexeex.exe	32
PID 2272 wrote to memory of 2180	2272	8ad1e7e01d7947exeexeexeex.exe	34
PID 2272 wrote to memory of 2180	2272	8ad1e7e01d7947exeexeexeex.exe	34
PID 2272 wrote to memory of 2180	2272	8ad1e7e01d7947exeexeexeex.exe	34
PID 2272 wrote to memory of 2180	2272	8ad1e7e01d7947exeexeexeex.exe	34
PID 2272 wrote to memory of 2376	2272	8ad1e7e01d7947exeexeexeex.exe	36
PID 2272 wrote to memory of 2376	2272	8ad1e7e01d7947exeexeexeex.exe	36
PID 2272 wrote to memory of 2376	2272	8ad1e7e01d7947exeexeexeex.exe	36
PID 2272 wrote to memory of 2376	2272	8ad1e7e01d7947exeexeexeex.exe	36
PID 2272 wrote to memory of 1220	2272	8ad1e7e01d7947exeexeexeex.exe	38
PID 2272 wrote to memory of 1220	2272	8ad1e7e01d7947exeexeexeex.exe	38
PID 2272 wrote to memory of 1220	2272	8ad1e7e01d7947exeexeexeex.exe	38
PID 2272 wrote to memory of 1220	2272	8ad1e7e01d7947exeexeexeex.exe	38
PID 2272 wrote to memory of 2884	2272	8ad1e7e01d7947exeexeexeex.exe	40
PID 2272 wrote to memory of 2884	2272	8ad1e7e01d7947exeexeexeex.exe	40
PID 2272 wrote to memory of 2884	2272	8ad1e7e01d7947exeexeexeex.exe	40
PID 2272 wrote to memory of 2884	2272	8ad1e7e01d7947exeexeexeex.exe	40
PID 2272 wrote to memory of 2936	2272	8ad1e7e01d7947exeexeexeex.exe	42
PID 2272 wrote to memory of 2936	2272	8ad1e7e01d7947exeexeexeex.exe	42
PID 2272 wrote to memory of 2936	2272	8ad1e7e01d7947exeexeexeex.exe	42
PID 2272 wrote to memory of 2936	2272	8ad1e7e01d7947exeexeexeex.exe	42
PID 2272 wrote to memory of 2616	2272	8ad1e7e01d7947exeexeexeex.exe	44
PID 2272 wrote to memory of 2616	2272	8ad1e7e01d7947exeexeexeex.exe	44
PID 2272 wrote to memory of 2616	2272	8ad1e7e01d7947exeexeexeex.exe	44
PID 2272 wrote to memory of 2616	2272	8ad1e7e01d7947exeexeexeex.exe	44
PID 2272 wrote to memory of 2732	2272	8ad1e7e01d7947exeexeexeex.exe	46
PID 2272 wrote to memory of 2732	2272	8ad1e7e01d7947exeexeexeex.exe	46
PID 2272 wrote to memory of 2732	2272	8ad1e7e01d7947exeexeexeex.exe	46
PID 2272 wrote to memory of 2732	2272	8ad1e7e01d7947exeexeexeex.exe	46
PID 2272 wrote to memory of 2584	2272	8ad1e7e01d7947exeexeexeex.exe	48
PID 2272 wrote to memory of 2584	2272	8ad1e7e01d7947exeexeexeex.exe	48
PID 2272 wrote to memory of 2584	2272	8ad1e7e01d7947exeexeexeex.exe	48
PID 2272 wrote to memory of 2584	2272	8ad1e7e01d7947exeexeexeex.exe	48
PID 2272 wrote to memory of 2480	2272	8ad1e7e01d7947exeexeexeex.exe	50
PID 2272 wrote to memory of 2480	2272	8ad1e7e01d7947exeexeexeex.exe	50
PID 2272 wrote to memory of 2480	2272	8ad1e7e01d7947exeexeexeex.exe	50
PID 2272 wrote to memory of 2480	2272	8ad1e7e01d7947exeexeexeex.exe	50

C:\Users\Admin\AppData\Local\Temp\8ad1e7e01d7947exeexeexeex.exe
"C:\Users\Admin\AppData\Local\Temp\8ad1e7e01d7947exeexeexeex.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1496
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2220
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2084
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2180
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2376
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1220
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2884
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2936
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2616
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2732
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2584
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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/2272-54-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2272-58-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download