gandcrab | fbbb4f8c0f4ffcd1b9ed4077490d747a56791a4765a15465645b1a59992db5a5

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
27-03-2024 17:29

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General

Target

2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
Size

145KB
MD5

337459888e1b42c8f35f07bb12dd3585
SHA1

5f3513520b5cffb58c45b05085d905f115c477b4
SHA256

fbbb4f8c0f4ffcd1b9ed4077490d747a56791a4765a15465645b1a59992db5a5
SHA512

f867ae01e9c5cd66014bbb7627c4b0fdc7a6b1253964d10e75c0409c19ae8961c903ab90c74f7d357dac366bce14286d098404ba7ebb158561261aec70598c1b
SSDEEP

3072:CYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:CyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/2124-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral1/memory/2124-4-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab

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

Detects ransomware indicator 2 IoCs

resource	yara_rule
behavioral1/memory/2124-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2124-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2124-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral1/memory/2124-4-0x0000000000400000-0x0000000000428000-memory.dmp	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\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\epfpicsxlpk = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe"	2024-03-27_337459888e1b42c8f35f07bb12dd3585_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)	\??\G:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\I:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\W:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\X:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\B:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\H:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\N:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\U:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-27_337459888e1b42c8f35f07bb12dd3585_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	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2280	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	28
PID 2124 wrote to memory of 2280	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	28
PID 2124 wrote to memory of 2280	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	28
PID 2124 wrote to memory of 2280	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	28
PID 2124 wrote to memory of 2580	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	31
PID 2124 wrote to memory of 2580	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	31
PID 2124 wrote to memory of 2580	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	31
PID 2124 wrote to memory of 2580	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	31
PID 2124 wrote to memory of 2644	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	33
PID 2124 wrote to memory of 2644	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	33
PID 2124 wrote to memory of 2644	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	33
PID 2124 wrote to memory of 2644	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	33
PID 2124 wrote to memory of 2740	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	35
PID 2124 wrote to memory of 2740	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	35
PID 2124 wrote to memory of 2740	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	35
PID 2124 wrote to memory of 2740	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	35
PID 2124 wrote to memory of 2896	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	39
PID 2124 wrote to memory of 2896	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	39
PID 2124 wrote to memory of 2896	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	39
PID 2124 wrote to memory of 2896	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	39
PID 2124 wrote to memory of 2648	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	41
PID 2124 wrote to memory of 2648	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	41
PID 2124 wrote to memory of 2648	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	41
PID 2124 wrote to memory of 2648	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	41
PID 2124 wrote to memory of 2020	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	43
PID 2124 wrote to memory of 2020	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	43
PID 2124 wrote to memory of 2020	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	43
PID 2124 wrote to memory of 2020	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	43
PID 2124 wrote to memory of 2540	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	45
PID 2124 wrote to memory of 2540	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	45
PID 2124 wrote to memory of 2540	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	45
PID 2124 wrote to memory of 2540	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	45
PID 2124 wrote to memory of 2632	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	47
PID 2124 wrote to memory of 2632	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	47
PID 2124 wrote to memory of 2632	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	47
PID 2124 wrote to memory of 2632	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	47
PID 2124 wrote to memory of 1076	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	49
PID 2124 wrote to memory of 1076	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	49
PID 2124 wrote to memory of 1076	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	49
PID 2124 wrote to memory of 1076	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	49
PID 2124 wrote to memory of 3048	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	51
PID 2124 wrote to memory of 3048	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	51
PID 2124 wrote to memory of 3048	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	51
PID 2124 wrote to memory of 3048	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	51
PID 2124 wrote to memory of 1164	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	53
PID 2124 wrote to memory of 1164	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	53
PID 2124 wrote to memory of 1164	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	53
PID 2124 wrote to memory of 1164	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	53
PID 2124 wrote to memory of 2216	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	55
PID 2124 wrote to memory of 2216	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	55
PID 2124 wrote to memory of 2216	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	55
PID 2124 wrote to memory of 2216	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	55
PID 2124 wrote to memory of 1528	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	57
PID 2124 wrote to memory of 1528	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	57
PID 2124 wrote to memory of 1528	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	57
PID 2124 wrote to memory of 1528	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	57
PID 2124 wrote to memory of 1856	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	59
PID 2124 wrote to memory of 1856	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	59
PID 2124 wrote to memory of 1856	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	59
PID 2124 wrote to memory of 1856	2124	2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe	59

C:\Users\Admin\AppData\Local\Temp\2024-03-27_337459888e1b42c8f35f07bb12dd3585_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_337459888e1b42c8f35f07bb12dd3585_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:2124
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2280
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2580
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2644
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2740
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2896
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2648
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2020
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2540
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2632
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1076
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3048
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1164
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2216
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1528
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1856

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/2124-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2124-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download