gandcrab | 92a04bf0adf8fc36bfc932c0d6b21dd4a3e0cd767698ad5f64b85f0740a6b9ee

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
25/06/2024, 12:11

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General

Target
2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
Size 99KB
Sample240625-pc1ycayflg
SHA256 92a04bf0adf8fc36bfc932c0d6b21dd4a3e0cd767698ad5f64b85f0740a6b9ee
MD5 b312b76b9d2c8054cc06e2a1d57ae552
SHA1 183ecb1aa6593f1f251211ad49741f770573a1ca
SHA512 bfe533da619219e2fe05a0498c46f3cc56c23265cfefcf4af9b715baa3d306c0bfd66a2944c9f9c1c37d9560d9b565e5cd5aae427e238669983ca0eef885b8ed
SSDEEP 3072:VMSjOnrmBIMqqDL2/mr3IdE8we0Avu5r++ygLIaaypQ8CrS6:VXjOnr6jqqDL6aprYS6
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gandcrab backdoor persistence ransomware upx

Malware Config

Extracted

Family

gandcrab

http://gdcbghvjyqy7jclk.onion.top/

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/2760-0-0x0000000000030000-0x000000000004C000-memory.dmp	family_gandcrab
behavioral2/memory/2760-4-0x0000000000030000-0x000000000004C000-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/2760-0-0x0000000000030000-0x000000000004C000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/2760-4-0x0000000000030000-0x000000000004C000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2760-0-0x0000000000030000-0x000000000004C000-memory.dmp	Gandcrab
behavioral2/memory/2760-4-0x0000000000030000-0x000000000004C000-memory.dmp	Gandcrab

UPX dump on OEP (original entry point) 2 IoCs

resource	yara_rule
behavioral2/memory/2760-0-0x0000000000030000-0x000000000004C000-memory.dmp	UPX
behavioral2/memory/2760-4-0x0000000000030000-0x000000000004C000-memory.dmp	UPX

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2760-0-0x0000000000030000-0x000000000004C000-memory.dmp	upx
behavioral2/memory/2760-4-0x0000000000030000-0x000000000004C000-memory.dmp	upx

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-1-5-21-3665033694-1447845302-680750983-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\aehdtvyotvf = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe"	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_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)	\??\G:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\L:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\N:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\Y:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\Z:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\U:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\W:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\E:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\I:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\J:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\O:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\S:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\H:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\P:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\Q:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\T:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\V:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\X:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\A:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\B:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\K:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\M:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
File opened (read-only)	\??\R:	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_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	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 1644	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	93
PID 2760 wrote to memory of 1644	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	93
PID 2760 wrote to memory of 1644	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	93
PID 2760 wrote to memory of 2560	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	102
PID 2760 wrote to memory of 2560	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	102
PID 2760 wrote to memory of 2560	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	102
PID 2760 wrote to memory of 1440	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	105
PID 2760 wrote to memory of 1440	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	105
PID 2760 wrote to memory of 1440	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	105
PID 2760 wrote to memory of 4336	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	109
PID 2760 wrote to memory of 4336	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	109
PID 2760 wrote to memory of 4336	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	109
PID 2760 wrote to memory of 384	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	112
PID 2760 wrote to memory of 384	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	112
PID 2760 wrote to memory of 384	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	112
PID 2760 wrote to memory of 4844	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	114
PID 2760 wrote to memory of 4844	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	114
PID 2760 wrote to memory of 4844	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	114
PID 2760 wrote to memory of 2924	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	116
PID 2760 wrote to memory of 2924	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	116
PID 2760 wrote to memory of 2924	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	116
PID 2760 wrote to memory of 2164	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	119
PID 2760 wrote to memory of 2164	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	119
PID 2760 wrote to memory of 2164	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	119
PID 2760 wrote to memory of 2108	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	121
PID 2760 wrote to memory of 2108	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	121
PID 2760 wrote to memory of 2108	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	121
PID 2760 wrote to memory of 3852	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	123
PID 2760 wrote to memory of 3852	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	123
PID 2760 wrote to memory of 3852	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	123
PID 2760 wrote to memory of 1028	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	132
PID 2760 wrote to memory of 1028	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	132
PID 2760 wrote to memory of 1028	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	132
PID 2760 wrote to memory of 3508	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	134
PID 2760 wrote to memory of 3508	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	134
PID 2760 wrote to memory of 3508	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	134
PID 2760 wrote to memory of 4220	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	136
PID 2760 wrote to memory of 4220	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	136
PID 2760 wrote to memory of 4220	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	136
PID 2760 wrote to memory of 1152	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	138
PID 2760 wrote to memory of 1152	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	138
PID 2760 wrote to memory of 1152	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	138
PID 2760 wrote to memory of 4728	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	143
PID 2760 wrote to memory of 4728	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	143
PID 2760 wrote to memory of 4728	2760	2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe	143

C:\Users\Admin\AppData\Local\Temp\2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-25_b312b76b9d2c8054cc06e2a1d57ae552_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:2760
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1644
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2560
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1440
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4336
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:384
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4844
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2924
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2164
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2108
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3852
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1028
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3508
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4220
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1152
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4728

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 --field-trial-handle=4212,i,11751898164297348119,13021661521765644467,262144 --variations-seed-version --mojo-platform-channel-handle=4036 /prefetch:8
1⤵
PID:4848