gandcrab | c9f6910803ace2c5aef1a439ea4e824f4a83f2ef31793b5d4b5e53a496c35dfb

Analysis

max time kernel
143s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20/04/2024, 04:31

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General

Target

2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
Size

145KB
MD5

43b0f1c373e53229422cf753cb919747
SHA1

87cc3626826091ab2de8ed1b12bb6b78f7321e85
SHA256

c9f6910803ace2c5aef1a439ea4e824f4a83f2ef31793b5d4b5e53a496c35dfb
SHA512

832f848c9a8850daf7bbc877f35b8f565155ac3ff45b186c8247a999d45820c6fcf28b743676ad321472f280298776c3e7ac2936eb618f1096caee2d93876de7
SSDEEP

3072:vYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:vyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/1084-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral1/memory/1084-4-0x0000000000400000-0x0000000000428000-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/1084-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/1084-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral1/memory/1084-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral1/memory/1084-4-0x0000000000400000-0x0000000000428000-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-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\faoocdixaxg = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe"	2024-04-20_43b0f1c373e53229422cf753cb919747_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)	\??\K:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\P:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\Q:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\U:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\V:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\W:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\G:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\I:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\J:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\L:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\N:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\Y:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\A:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\B:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\E:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\S:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\X:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\Z:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\H:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\M:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\O:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\R:	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
File opened (read-only)	\??\T:	2024-04-20_43b0f1c373e53229422cf753cb919747_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	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 1084 wrote to memory of 1720	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	28
PID 1084 wrote to memory of 1720	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	28
PID 1084 wrote to memory of 1720	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	28
PID 1084 wrote to memory of 1720	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	28
PID 1084 wrote to memory of 2616	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	31
PID 1084 wrote to memory of 2616	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	31
PID 1084 wrote to memory of 2616	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	31
PID 1084 wrote to memory of 2616	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	31
PID 1084 wrote to memory of 2396	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	35
PID 1084 wrote to memory of 2396	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	35
PID 1084 wrote to memory of 2396	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	35
PID 1084 wrote to memory of 2396	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	35
PID 1084 wrote to memory of 2772	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	37
PID 1084 wrote to memory of 2772	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	37
PID 1084 wrote to memory of 2772	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	37
PID 1084 wrote to memory of 2772	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	37
PID 1084 wrote to memory of 1256	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	39
PID 1084 wrote to memory of 1256	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	39
PID 1084 wrote to memory of 1256	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	39
PID 1084 wrote to memory of 1256	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	39
PID 1084 wrote to memory of 568	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	41
PID 1084 wrote to memory of 568	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	41
PID 1084 wrote to memory of 568	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	41
PID 1084 wrote to memory of 568	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	41
PID 1084 wrote to memory of 1724	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	43
PID 1084 wrote to memory of 1724	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	43
PID 1084 wrote to memory of 1724	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	43
PID 1084 wrote to memory of 1724	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	43
PID 1084 wrote to memory of 2228	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	45
PID 1084 wrote to memory of 2228	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	45
PID 1084 wrote to memory of 2228	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	45
PID 1084 wrote to memory of 2228	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	45
PID 1084 wrote to memory of 2212	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	47
PID 1084 wrote to memory of 2212	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	47
PID 1084 wrote to memory of 2212	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	47
PID 1084 wrote to memory of 2212	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	47
PID 1084 wrote to memory of 1436	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	49
PID 1084 wrote to memory of 1436	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	49
PID 1084 wrote to memory of 1436	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	49
PID 1084 wrote to memory of 1436	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	49
PID 1084 wrote to memory of 2656	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	51
PID 1084 wrote to memory of 2656	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	51
PID 1084 wrote to memory of 2656	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	51
PID 1084 wrote to memory of 2656	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	51
PID 1084 wrote to memory of 1948	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	53
PID 1084 wrote to memory of 1948	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	53
PID 1084 wrote to memory of 1948	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	53
PID 1084 wrote to memory of 1948	1084	2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe	53

C:\Users\Admin\AppData\Local\Temp\2024-04-20_43b0f1c373e53229422cf753cb919747_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-20_43b0f1c373e53229422cf753cb919747_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:1084
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1720
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2616
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2396
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2772
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1256
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:568
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1724
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2228
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2212
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1436
- 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:1948

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/1084-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1084-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download