gandcrab | c8c09084383fbfb7037ade5c5f56451c7176a5aa44a1597a1fa9da7f58b5708e

Analysis

max time kernel
140s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2024, 04:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
Size

145KB
MD5

6445789c92369be6d96f02f3fcc0e898
SHA1

9b09da0545620a07f9ed9fcef6016f0153dac280
SHA256

c8c09084383fbfb7037ade5c5f56451c7176a5aa44a1597a1fa9da7f58b5708e
SHA512

4c0d5ab90697b2f5ceaadd0c9e85e5c83a965f1dc6b0e8e86b08612ba57d59e1bba617de89ae8de5eeabf7995b4a2d96bd47f41347eed9168a3c73057ac5e93b
SSDEEP

3072:fYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:fyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/2708-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/2708-4-0x0000000000400000-0x0000000000428000-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/2708-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/2708-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2708-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/2708-4-0x0000000000400000-0x0000000000428000-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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\zkrvpiylpdj = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe"	2024-01-24_6445789c92369be6d96f02f3fcc0e898_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)	\??\A:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\B:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\G:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\M:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\O:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\U:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\H:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\Q:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\T:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\Y:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\Z:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\X:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\E:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\K:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\N:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\P:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\R:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\S:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\I:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\J:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\L:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\V:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
File opened (read-only)	\??\W:	2024-01-24_6445789c92369be6d96f02f3fcc0e898_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	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 1748	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	92
PID 2708 wrote to memory of 1748	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	92
PID 2708 wrote to memory of 1748	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	92
PID 2708 wrote to memory of 2916	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	100
PID 2708 wrote to memory of 2916	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	100
PID 2708 wrote to memory of 2916	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	100
PID 2708 wrote to memory of 2828	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	102
PID 2708 wrote to memory of 2828	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	102
PID 2708 wrote to memory of 2828	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	102
PID 2708 wrote to memory of 2548	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	105
PID 2708 wrote to memory of 2548	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	105
PID 2708 wrote to memory of 2548	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	105
PID 2708 wrote to memory of 4048	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	107
PID 2708 wrote to memory of 4048	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	107
PID 2708 wrote to memory of 4048	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	107
PID 2708 wrote to memory of 3352	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	109
PID 2708 wrote to memory of 3352	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	109
PID 2708 wrote to memory of 3352	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	109
PID 2708 wrote to memory of 2220	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	112
PID 2708 wrote to memory of 2220	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	112
PID 2708 wrote to memory of 2220	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	112
PID 2708 wrote to memory of 5068	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	114
PID 2708 wrote to memory of 5068	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	114
PID 2708 wrote to memory of 5068	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	114
PID 2708 wrote to memory of 1400	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	115
PID 2708 wrote to memory of 1400	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	115
PID 2708 wrote to memory of 1400	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	115
PID 2708 wrote to memory of 4920	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	117
PID 2708 wrote to memory of 4920	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	117
PID 2708 wrote to memory of 4920	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	117
PID 2708 wrote to memory of 2136	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	119
PID 2708 wrote to memory of 2136	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	119
PID 2708 wrote to memory of 2136	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	119
PID 2708 wrote to memory of 1896	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	121
PID 2708 wrote to memory of 1896	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	121
PID 2708 wrote to memory of 1896	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	121
PID 2708 wrote to memory of 1092	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	123
PID 2708 wrote to memory of 1092	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	123
PID 2708 wrote to memory of 1092	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	123
PID 2708 wrote to memory of 736	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	125
PID 2708 wrote to memory of 736	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	125
PID 2708 wrote to memory of 736	2708	2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe	125

C:\Users\Admin\AppData\Local\Temp\2024-01-24_6445789c92369be6d96f02f3fcc0e898_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_6445789c92369be6d96f02f3fcc0e898_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:2708
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1748
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2916
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2828
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2548
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4048
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3352
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2220
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:5068
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1400
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4920
- 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:1896
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1092
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:736

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

Loading Replay Monitor...

Downloads

memory/2708-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2708-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download