gandcrab | d2e89e95fd9c866dbd1523b31fa7f5fa65cb9a72bb35b845ea61034fc3a34146

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
16-06-2024 19:47

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General

Target

2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
Size

308KB
MD5

1e2a8e1d7ef4f1b6afcfca6ff0dc0923
SHA1

b496d0e9cae055bda8552cdf24708532976fb64f
SHA256

d2e89e95fd9c866dbd1523b31fa7f5fa65cb9a72bb35b845ea61034fc3a34146
SHA512

7be330690117e51795fc946e85c7f8dce90b7f9a2718f9f4a6e875dc4c63a74f3771c0c14950a450693375cdb3683464f4a0e956e3c846b3ddfb890d1b572199
SSDEEP

6144:JzL7ShWDLVzVNam6GxI29dqG3KdYAYqTuPZp:XDHNam62ZdKmZmuPH

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2036-2-0x0000000000240000-0x0000000000257000-memory.dmp	family_gandcrab
behavioral1/memory/2036-1-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2036-9-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab

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

Detects Reflective DLL injection artifacts 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2036-2-0x0000000000240000-0x0000000000257000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2036-1-0x0000000000400000-0x0000000001400000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2036-9-0x0000000000400000-0x0000000001400000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/2036-2-0x0000000000240000-0x0000000000257000-memory.dmp SUSP_RANSOMWARE_Indicator_Jul20

resource	yara_rule
behavioral1/memory/2036-2-0x0000000000240000-0x0000000000257000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2036-2-0x0000000000240000-0x0000000000257000-memory.dmp	Gandcrab
behavioral1/memory/2036-1-0x0000000000400000-0x0000000001400000-memory.dmp	Gandcrab
behavioral1/memory/2036-9-0x0000000000400000-0x0000000001400000-memory.dmp	Gandcrab

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\adojexaqbkh = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\nxvvjt.exe\""	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.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:

2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe

description	ioc	process
File opened (read-only)	\??\U:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.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:

2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe

pid process

2036 2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
2036 2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe

pid	process
2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe

description	pid	process	target process
PID 2036 wrote to memory of 2608	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2608	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2608	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2608	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2784	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2784	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2784	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2784	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2208	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2208	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2208	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2208	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 1568	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 1568	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 1568	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 1568	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 1720	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 1720	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 1720	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 1720	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2204	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2204	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2204	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe
PID 2036 wrote to memory of 2204	2036	2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2036

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2608

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:2784

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:2208

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:1568

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:1720

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:2204

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

memory/2036-2-0x0000000000240000-0x0000000000257000-memory.dmp

Filesize
92KB

Download
memory/2036-1-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2036-9-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download