gandcrab | 6426a92c69fb0aa08cf98c93b3ad20fbfa0ca4ac9030b6658208069fc52fb071

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14-03-2024 07:49

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General

Target

2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
Size

145KB
MD5

c3316c51e7f3e140ff3bd16583f7ea0b
SHA1

a2bc82348f7b140783be819962d7daf32866c4ae
SHA256

6426a92c69fb0aa08cf98c93b3ad20fbfa0ca4ac9030b6658208069fc52fb071
SHA512

b25acc2686999901f25286ecdd057fe9cd497b5eae822f0354d2fbefd411b0e6378345c658a8bf595c9a01e5e4462517951327732ea08c17ecd2c7db2097d70d
SSDEEP

3072:iYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:iyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/1464-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/1464-4-0x0000000000400000-0x0000000000428000-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/1464-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/1464-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1464-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/1464-4-0x0000000000400000-0x0000000000428000-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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\qznkbwuwnzf = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe"	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_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)	\??\U:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\W:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\X:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\B:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\N:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\I:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\G:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
File opened (read-only)	\??\H:	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_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	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 4600	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	99
PID 1464 wrote to memory of 4600	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	99
PID 1464 wrote to memory of 4600	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	99
PID 1464 wrote to memory of 4324	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	106
PID 1464 wrote to memory of 4324	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	106
PID 1464 wrote to memory of 4324	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	106
PID 1464 wrote to memory of 2496	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	111
PID 1464 wrote to memory of 2496	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	111
PID 1464 wrote to memory of 2496	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	111
PID 1464 wrote to memory of 3376	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	114
PID 1464 wrote to memory of 3376	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	114
PID 1464 wrote to memory of 3376	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	114
PID 1464 wrote to memory of 3828	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	117
PID 1464 wrote to memory of 3828	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	117
PID 1464 wrote to memory of 3828	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	117
PID 1464 wrote to memory of 2120	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	119
PID 1464 wrote to memory of 2120	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	119
PID 1464 wrote to memory of 2120	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	119
PID 1464 wrote to memory of 1328	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	122
PID 1464 wrote to memory of 1328	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	122
PID 1464 wrote to memory of 1328	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	122
PID 1464 wrote to memory of 3488	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	124
PID 1464 wrote to memory of 3488	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	124
PID 1464 wrote to memory of 3488	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	124
PID 1464 wrote to memory of 4860	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	126
PID 1464 wrote to memory of 4860	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	126
PID 1464 wrote to memory of 4860	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	126
PID 1464 wrote to memory of 4804	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	132
PID 1464 wrote to memory of 4804	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	132
PID 1464 wrote to memory of 4804	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	132
PID 1464 wrote to memory of 1444	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	134
PID 1464 wrote to memory of 1444	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	134
PID 1464 wrote to memory of 1444	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	134
PID 1464 wrote to memory of 1720	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	142
PID 1464 wrote to memory of 1720	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	142
PID 1464 wrote to memory of 1720	1464	2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe	142

C:\Users\Admin\AppData\Local\Temp\2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_c3316c51e7f3e140ff3bd16583f7ea0b_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:1464
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4600
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4324
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2496
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3376
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3828
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2120
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1328
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3488
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4860
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4804
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1444
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1720

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1352 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
1⤵
PID:3568

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/1464-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1464-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download