gandcrab | 4331cae9c9d41849a5dee1eef5baabb0361fd34abffd09efb2f8eca2de4129d2

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 09:48

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General

Target

2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
Size

145KB
MD5

e8de18fd73511aa4a7753be0a2e58bc7
SHA1

bb4476b8a1c923dd431ca2958bdd12ea92938894
SHA256

4331cae9c9d41849a5dee1eef5baabb0361fd34abffd09efb2f8eca2de4129d2
SHA512

ed96dbd3e1b39a2ad3a641f78d5d0f22e17a340f8a51adb1f822e0443a705e65546c76d74e4402399e7f9da6379d289bf252b68a30f39b9e2a2760ca24f45463
SSDEEP

3072:+YHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:+yOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/3036-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral1/memory/3036-4-0x0000000000400000-0x0000000000428000-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/3036-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/3036-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral1/memory/3036-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral1/memory/3036-4-0x0000000000400000-0x0000000000428000-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-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\mblucoyncdi = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe"	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_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)	\??\Q:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\V:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\Z:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\E:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\G:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\H:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\L:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\O:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\J:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\K:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\P:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\S:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\T:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\I:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\N:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\R:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\U:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\W:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\A:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\B:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\M:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\X:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\Y:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_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	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 1760	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	28
PID 3036 wrote to memory of 1760	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	28
PID 3036 wrote to memory of 1760	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	28
PID 3036 wrote to memory of 1760	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	28
PID 3036 wrote to memory of 2580	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	31
PID 3036 wrote to memory of 2580	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	31
PID 3036 wrote to memory of 2580	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	31
PID 3036 wrote to memory of 2580	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	31
PID 3036 wrote to memory of 2668	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	33
PID 3036 wrote to memory of 2668	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	33
PID 3036 wrote to memory of 2668	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	33
PID 3036 wrote to memory of 2668	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	33
PID 3036 wrote to memory of 2476	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	35
PID 3036 wrote to memory of 2476	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	35
PID 3036 wrote to memory of 2476	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	35
PID 3036 wrote to memory of 2476	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	35
PID 3036 wrote to memory of 2784	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	37
PID 3036 wrote to memory of 2784	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	37
PID 3036 wrote to memory of 2784	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	37
PID 3036 wrote to memory of 2784	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	37
PID 3036 wrote to memory of 2772	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	41
PID 3036 wrote to memory of 2772	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	41
PID 3036 wrote to memory of 2772	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	41
PID 3036 wrote to memory of 2772	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	41
PID 3036 wrote to memory of 2768	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	43
PID 3036 wrote to memory of 2768	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	43
PID 3036 wrote to memory of 2768	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	43
PID 3036 wrote to memory of 2768	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	43
PID 3036 wrote to memory of 2136	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	45
PID 3036 wrote to memory of 2136	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	45
PID 3036 wrote to memory of 2136	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	45
PID 3036 wrote to memory of 2136	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	45
PID 3036 wrote to memory of 2948	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	47
PID 3036 wrote to memory of 2948	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	47
PID 3036 wrote to memory of 2948	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	47
PID 3036 wrote to memory of 2948	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	47
PID 3036 wrote to memory of 628	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	49
PID 3036 wrote to memory of 628	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	49
PID 3036 wrote to memory of 628	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	49
PID 3036 wrote to memory of 628	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	49
PID 3036 wrote to memory of 2932	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	51
PID 3036 wrote to memory of 2932	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	51
PID 3036 wrote to memory of 2932	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	51
PID 3036 wrote to memory of 2932	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	51
PID 3036 wrote to memory of 2356	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	53
PID 3036 wrote to memory of 2356	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	53
PID 3036 wrote to memory of 2356	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	53
PID 3036 wrote to memory of 2356	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	53
PID 3036 wrote to memory of 1272	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	55
PID 3036 wrote to memory of 1272	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	55
PID 3036 wrote to memory of 1272	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	55
PID 3036 wrote to memory of 1272	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	55
PID 3036 wrote to memory of 580	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	57
PID 3036 wrote to memory of 580	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	57
PID 3036 wrote to memory of 580	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	57
PID 3036 wrote to memory of 580	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	57
PID 3036 wrote to memory of 1100	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	59
PID 3036 wrote to memory of 1100	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	59
PID 3036 wrote to memory of 1100	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	59
PID 3036 wrote to memory of 1100	3036	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	59

C:\Users\Admin\AppData\Local\Temp\2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_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:3036
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1760
- 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:2668
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2476
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2784
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2772
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2768
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2136
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2948
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:628
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2932
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2356
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1272
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:580
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1100

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/3036-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3036-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download