gandcrab | 0837ea3c5e0a86168ded966aca50add80e1b533b99a00b4a6b5d5f6a497de146

Resubmissions

30-06-2024 01:13

240630-blhaps1emd 10

29-06-2024 20:58

240629-zscksswdje 10

Analysis

max time kernel
142s
max time network
147s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 20:58

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General

Target

2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
Size

240KB
MD5

88c33d9670490f003390bd5b00cbc76d
SHA1

0563481e0b88924d1f19fbe4f1afec283fe448e6
SHA256

0837ea3c5e0a86168ded966aca50add80e1b533b99a00b4a6b5d5f6a497de146
SHA512

0faa29d0b2d62a288b47ca5ad735c3c8b2a6c7c6cd5e90bd1f845ac956de3190f6849d61024cb7347411fdd870eea77c7380f44b87ddbe33ff25a039f1a4b2b8
SSDEEP

3072:qYHVHd2NwMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpHk:qycqqDL6oREzZpE

Score

10^/10

gandcrab backdoor persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

Processes:

resource yara_rule

behavioral1/memory/492-0-0x0000000000400000-0x000000000043C000-memory.dmp family_gandcrab
behavioral1/memory/492-4-0x0000000000400000-0x000000000043C000-memory.dmp family_gandcrab
Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab
UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
upx

Processes:

resource yara_rule

behavioral1/memory/492-0-0x0000000000400000-0x000000000043C000-memory.dmp upx
behavioral1/memory/492-4-0x0000000000400000-0x000000000043C000-memory.dmp upx

resource	yara_rule
behavioral1/memory/492-0-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab
behavioral1/memory/492-4-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab

resource	yara_rule
behavioral1/memory/492-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral1/memory/492-4-0x0000000000400000-0x000000000043C000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\vvxtgfcvqaz = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe"	2024-06-29_88c33d9670490f003390bd5b00cbc76d_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

Processes:

2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe

description	ioc	process
File opened (read-only)	\??\R:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\W:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\X:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\A:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\H:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\L:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\M:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\Q:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\S:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\T:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\E:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\G:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\K:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\P:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\U:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\Z:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\B:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\I:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\J:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\N:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\O:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\V:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
File opened (read-only)	\??\Y:	2024-06-29_88c33d9670490f003390bd5b00cbc76d_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

Processes:

2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe

pid process

492 2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
492 2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe

pid	process
492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe

description	pid	process	target process
PID 492 wrote to memory of 2748	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2748	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2748	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2748	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2616	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2616	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2616	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2616	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2568	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2568	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2568	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2568	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2416	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2416	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2416	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2416	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2828	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2828	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2828	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe
PID 492 wrote to memory of 2828	492	2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-29_88c33d9670490f003390bd5b00cbc76d_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-29_88c33d9670490f003390bd5b00cbc76d_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:492

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:2748

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:2616

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:2568

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:2416

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:2828

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

memory/492-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/492-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download