gandcrab | ffe2c408eb3f673e26fe7e2f50ad97f2bdabf71d445b139d85c8eae0c903489a

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2024, 16:50

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General

Target

2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
Size

145KB
MD5

ebe9a9d5de78dfda32a325fc76aa3c8e
SHA1

75e6ae43295989aa20e0017b0a54048a32f4eaef
SHA256

ffe2c408eb3f673e26fe7e2f50ad97f2bdabf71d445b139d85c8eae0c903489a
SHA512

606fc1f6f6bbfbd06e71b973764a71dfad4f8461b2e5877e33a1325a09ee1bfe017d721b92295b7504fd28f356c4edfb1f775d1a7d185bbcbddfa03494211736
SSDEEP

3072:lYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:lyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/408-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/408-4-0x0000000000400000-0x0000000000428000-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/408-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/408-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/408-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/408-4-0x0000000000400000-0x0000000000428000-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-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\umrdurcgsxv = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe"	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_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)	\??\B:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\G:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\I:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\O:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\R:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\V:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\E:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\K:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\P:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\S:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\T:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\Z:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\A:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\N:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\Q:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\W:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\X:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\H:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\J:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\L:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\M:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\U:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
File opened (read-only)	\??\Y:	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_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	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 408 wrote to memory of 4616	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	84
PID 408 wrote to memory of 4616	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	84
PID 408 wrote to memory of 4616	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	84
PID 408 wrote to memory of 4940	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	93
PID 408 wrote to memory of 4940	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	93
PID 408 wrote to memory of 4940	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	93
PID 408 wrote to memory of 2640	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	95
PID 408 wrote to memory of 2640	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	95
PID 408 wrote to memory of 2640	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	95
PID 408 wrote to memory of 4196	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	98
PID 408 wrote to memory of 4196	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	98
PID 408 wrote to memory of 4196	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	98
PID 408 wrote to memory of 4512	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	100
PID 408 wrote to memory of 4512	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	100
PID 408 wrote to memory of 4512	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	100
PID 408 wrote to memory of 2784	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	102
PID 408 wrote to memory of 2784	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	102
PID 408 wrote to memory of 2784	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	102
PID 408 wrote to memory of 3620	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	104
PID 408 wrote to memory of 3620	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	104
PID 408 wrote to memory of 3620	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	104
PID 408 wrote to memory of 1044	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	106
PID 408 wrote to memory of 1044	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	106
PID 408 wrote to memory of 1044	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	106
PID 408 wrote to memory of 2872	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	108
PID 408 wrote to memory of 2872	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	108
PID 408 wrote to memory of 2872	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	108
PID 408 wrote to memory of 4332	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	110
PID 408 wrote to memory of 4332	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	110
PID 408 wrote to memory of 4332	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	110
PID 408 wrote to memory of 3316	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	112
PID 408 wrote to memory of 3316	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	112
PID 408 wrote to memory of 3316	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	112
PID 408 wrote to memory of 3592	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	114
PID 408 wrote to memory of 3592	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	114
PID 408 wrote to memory of 3592	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	114
PID 408 wrote to memory of 2992	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	116
PID 408 wrote to memory of 2992	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	116
PID 408 wrote to memory of 2992	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	116
PID 408 wrote to memory of 2180	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	118
PID 408 wrote to memory of 2180	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	118
PID 408 wrote to memory of 2180	408	2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe	118

C:\Users\Admin\AppData\Local\Temp\2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_ebe9a9d5de78dfda32a325fc76aa3c8e_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:408
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4616
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4940
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2640
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4196
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4512
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2784
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3620
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1044
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2872
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4332
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3316
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3592
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2992
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2180

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/408-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/408-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download