gandcrab | 73fd8463f16eb8dcc57604894e92e8a73b61102793f8bb35e0f3011d6d22f6cd

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
18-06-2024 20:51

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General

Target

202406189adc543a5e85943b579143340e0ac858gandcrab.exe
Size

99KB
MD5

9adc543a5e85943b579143340e0ac858
SHA1

8dc071b878d26b7cfa6d5f886ef19ca61d8b27c8
SHA256

73fd8463f16eb8dcc57604894e92e8a73b61102793f8bb35e0f3011d6d22f6cd
SHA512

7fe1381423b7f8462ecc6801109ec0bdca56501a485a69af2034390907e0ea6105b2d8916a9574839d5a1dbc35c73b8ecbb0d1fb8d9dd940c692121b7076947e
SSDEEP

3072:XMSjOnrmBIMqqDL2/mr3IdE8we0Avu5r++ygLIaaypQ8CrS6:XXjOnr6jqqDL6aprYS6

Score

10^/10

gandcrab backdoor persistence ransomware upx

Malware Config

Extracted

Family

gandcrab

http://gdcbghvjyqy7jclk.onion.top/

Signatures

GandCrab payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1692-0-0x0000000000E00000-0x0000000000E1C000-memory.dmp	family_gandcrab
behavioral2/memory/1692-4-0x0000000000E00000-0x0000000000E1C000-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

behavioral2/memory/1692-0-0x0000000000E00000-0x0000000000E1C000-memory.dmp upx
behavioral2/memory/1692-4-0x0000000000E00000-0x0000000000E1C000-memory.dmp upx

resource	yara_rule
behavioral2/memory/1692-0-0x0000000000E00000-0x0000000000E1C000-memory.dmp	upx
behavioral2/memory/1692-4-0x0000000000E00000-0x0000000000E1C000-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:

202406189adc543a5e85943b579143340e0ac858gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\rmqqjsmfbrw = "C:\\Users\\Admin\\AppData\\Local\\Temp\\202406189adc543a5e85943b579143340e0ac858gandcrab.exe"	202406189adc543a5e85943b579143340e0ac858gandcrab.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:

202406189adc543a5e85943b579143340e0ac858gandcrab.exe

description	ioc	process
File opened (read-only)	\??\A:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\H:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\I:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\L:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\R:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\T:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\B:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\E:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\P:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\U:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\V:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\X:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\G:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\N:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\Q:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\S:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\W:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\J:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\K:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\M:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\O:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\Y:	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
File opened (read-only)	\??\Z:	202406189adc543a5e85943b579143340e0ac858gandcrab.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:

202406189adc543a5e85943b579143340e0ac858gandcrab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	202406189adc543a5e85943b579143340e0ac858gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

202406189adc543a5e85943b579143340e0ac858gandcrab.exe

pid	process
1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe
1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

202406189adc543a5e85943b579143340e0ac858gandcrab.exe

description	pid	process	target process
PID 1692 wrote to memory of 3612	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3612	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3612	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3028	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3028	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3028	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4368	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4368	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4368	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 2760	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 2760	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 2760	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 1596	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 1596	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 1596	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3912	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3912	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3912	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 1488	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 1488	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 1488	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3128	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3128	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3128	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4776	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4776	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4776	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 5064	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 5064	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 5064	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4280	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4280	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4280	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3596	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3596	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 3596	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 880	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 880	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 880	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4936	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4936	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe
PID 1692 wrote to memory of 4936	1692	202406189adc543a5e85943b579143340e0ac858gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\202406189adc543a5e85943b579143340e0ac858gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\202406189adc543a5e85943b579143340e0ac858gandcrab.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1692

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:3612

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:3028

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4368

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:2760

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:1596

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:3912

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:1488

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:3128

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4776

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:5064

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4280

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:3596

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:880

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4936

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

memory/1692-0-0x0000000000E00000-0x0000000000E1C000-memory.dmp

Filesize
112KB

Download
memory/1692-4-0x0000000000E00000-0x0000000000E1C000-memory.dmp

Filesize
112KB

Download