gandcrab | e722213ff8ba84d105251c54cc6653fa2c36a89b941460b3986764c149b25cf5

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30-06-2024 02:06

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General

Target

2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
Size

240KB
MD5

a58ab2bc34884a491225dfb76e5a37cd
SHA1

4a0d843c591074fbfc1061c8ea6e167f7dd1ff3d
SHA256

e722213ff8ba84d105251c54cc6653fa2c36a89b941460b3986764c149b25cf5
SHA512

2ff47b906bbb686faef2199ba8b58081523589922645efd69dcf640d08d341fe7dd8423eb5cfcc3ce68cc3068c292231ba6698507c0163493cf6c753fc95b76b
SSDEEP

3072:DYHVHd2NwMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpHk:DycqqDL6oREzZpE

Score

10^/10

gandcrab backdoor persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1100-0-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab
behavioral2/memory/1100-4-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab

Detects ransomware indicator 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1100-0-0x0000000000400000-0x000000000043C000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/1100-4-0x0000000000400000-0x000000000043C000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

Processes:

resource yara_rule

behavioral2/memory/1100-0-0x0000000000400000-0x000000000043C000-memory.dmp Gandcrab
behavioral2/memory/1100-4-0x0000000000400000-0x000000000043C000-memory.dmp Gandcrab
UPX dump on OEP (original entry point) 2 IoCs

Processes:

resource yara_rule

behavioral2/memory/1100-0-0x0000000000400000-0x000000000043C000-memory.dmp UPX
behavioral2/memory/1100-4-0x0000000000400000-0x000000000043C000-memory.dmp UPX
UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
upx

Processes:

resource yara_rule

behavioral2/memory/1100-0-0x0000000000400000-0x000000000043C000-memory.dmp upx
behavioral2/memory/1100-4-0x0000000000400000-0x000000000043C000-memory.dmp upx

resource	yara_rule
behavioral2/memory/1100-0-0x0000000000400000-0x000000000043C000-memory.dmp	Gandcrab
behavioral2/memory/1100-4-0x0000000000400000-0x000000000043C000-memory.dmp	Gandcrab

resource	yara_rule
behavioral2/memory/1100-0-0x0000000000400000-0x000000000043C000-memory.dmp	UPX
behavioral2/memory/1100-4-0x0000000000400000-0x000000000043C000-memory.dmp	UPX

resource	yara_rule
behavioral2/memory/1100-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral2/memory/1100-4-0x0000000000400000-0x000000000043C000-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:

2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\eusalpindam = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe"	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_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:

2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe

description	ioc	process
File opened (read-only)	\??\A:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\B:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\J:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\K:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\Q:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\S:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\Z:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\G:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\L:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\M:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\O:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\T:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\W:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\H:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\R:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\U:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\V:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\X:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\E:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\I:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\N:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\P:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
File opened (read-only)	\??\Y:	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_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:

2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe

pid	process
1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe

description	pid	process	target process
PID 1100 wrote to memory of 4400	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 4400	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 4400	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 4436	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 4436	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 4436	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 4980	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 4980	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 4980	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 2836	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 2836	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 2836	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 2496	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 2496	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe
PID 1100 wrote to memory of 2496	1100	2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-30_a58ab2bc34884a491225dfb76e5a37cd_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:1100

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:4400

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4436

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4980

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:2836

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:2496

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

memory/1100-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1100-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download