gandcrab | 13b55cc89e871ad4792476ee6a128b6ce54bde5682b4d3c63097b017bd2d1326

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
26/04/2024, 12:33

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General

Target

2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
Size

145KB
MD5

8c7d29906655bb58e20941e830169734
SHA1

b156be92f7f0b6a99cd12237a732b2dd3d7d54de
SHA256

13b55cc89e871ad4792476ee6a128b6ce54bde5682b4d3c63097b017bd2d1326
SHA512

e1c0ecbbad10e1472c309adcf572cfe8090518b61d26c0fa011b49a1974c752d53f91fb8af93b89039e042ab51bdd8a88267d27acf27f65954b11cba0d9ecd6c
SSDEEP

3072:DYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:DyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/3552-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/3552-4-0x0000000000400000-0x0000000000428000-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
behavioral2/memory/3552-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/3552-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3552-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/3552-4-0x0000000000400000-0x0000000000428000-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-1-5-21-2288054676-1871194608-3559553667-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\mjoaxwefwhn = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe"	2024-04-26_8c7d29906655bb58e20941e830169734_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:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\R:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\W:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\Y:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\M:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\T:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\N:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\B:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\E:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\I:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\L:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\O:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\P:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\S:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\A:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\V:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\U:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\H:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\J:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\K:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\X:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\Z:	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
File opened (read-only)	\??\G:	2024-04-26_8c7d29906655bb58e20941e830169734_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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 3552 wrote to memory of 4552	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	89
PID 3552 wrote to memory of 4552	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	89
PID 3552 wrote to memory of 4552	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	89
PID 3552 wrote to memory of 4904	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	102
PID 3552 wrote to memory of 4904	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	102
PID 3552 wrote to memory of 4904	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	102
PID 3552 wrote to memory of 4396	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	104
PID 3552 wrote to memory of 4396	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	104
PID 3552 wrote to memory of 4396	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	104
PID 3552 wrote to memory of 2600	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	108
PID 3552 wrote to memory of 2600	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	108
PID 3552 wrote to memory of 2600	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	108
PID 3552 wrote to memory of 2024	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	110
PID 3552 wrote to memory of 2024	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	110
PID 3552 wrote to memory of 2024	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	110
PID 3552 wrote to memory of 2232	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	112
PID 3552 wrote to memory of 2232	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	112
PID 3552 wrote to memory of 2232	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	112
PID 3552 wrote to memory of 4208	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	117
PID 3552 wrote to memory of 4208	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	117
PID 3552 wrote to memory of 4208	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	117
PID 3552 wrote to memory of 3612	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	122
PID 3552 wrote to memory of 3612	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	122
PID 3552 wrote to memory of 3612	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	122
PID 3552 wrote to memory of 4992	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	124
PID 3552 wrote to memory of 4992	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	124
PID 3552 wrote to memory of 4992	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	124
PID 3552 wrote to memory of 4984	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	126
PID 3552 wrote to memory of 4984	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	126
PID 3552 wrote to memory of 4984	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	126
PID 3552 wrote to memory of 1940	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	135
PID 3552 wrote to memory of 1940	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	135
PID 3552 wrote to memory of 1940	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	135
PID 3552 wrote to memory of 4732	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	137
PID 3552 wrote to memory of 4732	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	137
PID 3552 wrote to memory of 4732	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	137
PID 3552 wrote to memory of 1772	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	139
PID 3552 wrote to memory of 1772	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	139
PID 3552 wrote to memory of 1772	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	139
PID 3552 wrote to memory of 3732	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	143
PID 3552 wrote to memory of 3732	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	143
PID 3552 wrote to memory of 3732	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	143
PID 3552 wrote to memory of 4840	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	145
PID 3552 wrote to memory of 4840	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	145
PID 3552 wrote to memory of 4840	3552	2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe	145

C:\Users\Admin\AppData\Local\Temp\2024-04-26_8c7d29906655bb58e20941e830169734_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_8c7d29906655bb58e20941e830169734_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:3552
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4552
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4904
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4396
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2600
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2024
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2232
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4208
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3612
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4992
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4984
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1940
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4732
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1772
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3732
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4840

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/3552-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3552-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download