gandcrab | 331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049

General

Target

331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
Size

244KB
MD5

0c5acedbe44f6be1bbd994db11825668
SHA1

6edd1b54f47f3087887f23c0c0438783ba639a3e
SHA256

331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049
SHA512

849b5b5fe2047a4f4641198fdb6319e9132454b9bfff2b072ea4047f427131c591f2b48ee21412754d640c46bd4923a80d4684f09e9ba8e395dc59ba0d4664e7

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/472-116-0x00000000021D0000-0x00000000021E7000-memory.dmp	family_gandcrab

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\lkjggdzwerb = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\xqpttu.exe\""	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe

Enumerates connected drives 3 TTPs 24 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:

331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe

description	ioc	process
File opened (read-only)	\??\A:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\F:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\G:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\H:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\J:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\L:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\X:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\Z:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\K:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\S:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\U:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\B:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\E:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\I:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\N:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\P:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\V:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\Y:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\M:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\O:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\Q:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\R:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\T:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
File opened (read-only)	\??\W:	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe

Drops file in Windows directory 1 IoCs

Processes:

331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe

description ioc process

File opened for modification C:\Windows\win.ini 331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe

description	ioc	process
File opened for modification	C:\Windows\win.ini	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.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:

331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe

pid	process
472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe

description	pid	process	target process
PID 472 wrote to memory of 2296	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 2296	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 2296	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 364	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 364	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 364	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 1156	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 1156	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 1156	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 576	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 576	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 576	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 3848	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 3848	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 3848	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 3924	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 3924	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe
PID 472 wrote to memory of 3924	472	331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe
"C:\Users\Admin\AppData\Local\Temp\331baab78131c7147fbbfc7c910f0344863f01d36812fb7bdb2572a2413c7049.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Windows directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:472

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2296

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:364

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:1156

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:576

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:3848

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:3924

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/364-118-0x0000000000000000-mapping.dmp

Download
memory/472-114-0x0000000000590000-0x00000000006DA000-memory.dmp

Filesize
1.3MB

Download
memory/472-115-0x0000000000400000-0x0000000000499000-memory.dmp

Filesize
612KB

Download
memory/472-116-0x00000000021D0000-0x00000000021E7000-memory.dmp

Filesize
92KB

Download
memory/576-120-0x0000000000000000-mapping.dmp

Download
memory/1156-119-0x0000000000000000-mapping.dmp

Download
memory/2296-117-0x0000000000000000-mapping.dmp

Download
memory/3848-121-0x0000000000000000-mapping.dmp

Download
memory/3924-122-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads