gandcrab | 45250e922ccef78536c50bcb78604ef92d22f7414f667ab5543caa96312c2b64

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
18/07/2023, 15:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

c108cf148871b8_JC.exe
Size

308KB
MD5

c108cf148871b86e6409f6236d375954
SHA1

6ca6a634311ae3495bdf4dad97bf9620c54537ec
SHA256

45250e922ccef78536c50bcb78604ef92d22f7414f667ab5543caa96312c2b64
SHA512

6dd04388be147ca990cb77541c12edc1aa4c94442cdc5331f76ee124915a91af482ac93b5982c316685fe364200775d9aee2041b31e2b57c8236380368ea7101
SSDEEP

6144:HzL7ShWDLVzVNam6GxI29dqG3KdYAYqTuPZp:dDHNam62ZdKmZmuPH

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2572-55-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2572-56-0x00000000002B0000-0x00000000002C7000-memory.dmp	family_gandcrab
behavioral1/memory/2572-63-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2572-65-0x00000000002B0000-0x00000000002C7000-memory.dmp	family_gandcrab

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

Unexpected DNS network traffic destination 64 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce	c108cf148871b8_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\aaalfwnslmu = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\qozxkk.exe\""	c108cf148871b8_JC.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

description	ioc	Process
File opened (read-only)	\??\A:	c108cf148871b8_JC.exe
File opened (read-only)	\??\B:	c108cf148871b8_JC.exe
File opened (read-only)	\??\J:	c108cf148871b8_JC.exe
File opened (read-only)	\??\R:	c108cf148871b8_JC.exe
File opened (read-only)	\??\U:	c108cf148871b8_JC.exe
File opened (read-only)	\??\W:	c108cf148871b8_JC.exe
File opened (read-only)	\??\Y:	c108cf148871b8_JC.exe
File opened (read-only)	\??\Z:	c108cf148871b8_JC.exe
File opened (read-only)	\??\G:	c108cf148871b8_JC.exe
File opened (read-only)	\??\H:	c108cf148871b8_JC.exe
File opened (read-only)	\??\K:	c108cf148871b8_JC.exe
File opened (read-only)	\??\M:	c108cf148871b8_JC.exe
File opened (read-only)	\??\O:	c108cf148871b8_JC.exe
File opened (read-only)	\??\E:	c108cf148871b8_JC.exe
File opened (read-only)	\??\I:	c108cf148871b8_JC.exe
File opened (read-only)	\??\P:	c108cf148871b8_JC.exe
File opened (read-only)	\??\Q:	c108cf148871b8_JC.exe
File opened (read-only)	\??\T:	c108cf148871b8_JC.exe
File opened (read-only)	\??\X:	c108cf148871b8_JC.exe
File opened (read-only)	\??\L:	c108cf148871b8_JC.exe
File opened (read-only)	\??\N:	c108cf148871b8_JC.exe
File opened (read-only)	\??\S:	c108cf148871b8_JC.exe
File opened (read-only)	\??\V:	c108cf148871b8_JC.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	c108cf148871b8_JC.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	c108cf148871b8_JC.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	c108cf148871b8_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2572	c108cf148871b8_JC.exe
2572	c108cf148871b8_JC.exe

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 2572 wrote to memory of 3024	2572	c108cf148871b8_JC.exe	28
PID 2572 wrote to memory of 3024	2572	c108cf148871b8_JC.exe	28
PID 2572 wrote to memory of 3024	2572	c108cf148871b8_JC.exe	28
PID 2572 wrote to memory of 3024	2572	c108cf148871b8_JC.exe	28
PID 2572 wrote to memory of 3068	2572	c108cf148871b8_JC.exe	30
PID 2572 wrote to memory of 3068	2572	c108cf148871b8_JC.exe	30
PID 2572 wrote to memory of 3068	2572	c108cf148871b8_JC.exe	30
PID 2572 wrote to memory of 3068	2572	c108cf148871b8_JC.exe	30
PID 2572 wrote to memory of 2732	2572	c108cf148871b8_JC.exe	34
PID 2572 wrote to memory of 2732	2572	c108cf148871b8_JC.exe	34
PID 2572 wrote to memory of 2732	2572	c108cf148871b8_JC.exe	34
PID 2572 wrote to memory of 2732	2572	c108cf148871b8_JC.exe	34
PID 2572 wrote to memory of 2436	2572	c108cf148871b8_JC.exe	36
PID 2572 wrote to memory of 2436	2572	c108cf148871b8_JC.exe	36
PID 2572 wrote to memory of 2436	2572	c108cf148871b8_JC.exe	36
PID 2572 wrote to memory of 2436	2572	c108cf148871b8_JC.exe	36
PID 2572 wrote to memory of 2428	2572	c108cf148871b8_JC.exe	38
PID 2572 wrote to memory of 2428	2572	c108cf148871b8_JC.exe	38
PID 2572 wrote to memory of 2428	2572	c108cf148871b8_JC.exe	38
PID 2572 wrote to memory of 2428	2572	c108cf148871b8_JC.exe	38
PID 2572 wrote to memory of 336	2572	c108cf148871b8_JC.exe	40
PID 2572 wrote to memory of 336	2572	c108cf148871b8_JC.exe	40
PID 2572 wrote to memory of 336	2572	c108cf148871b8_JC.exe	40
PID 2572 wrote to memory of 336	2572	c108cf148871b8_JC.exe	40
PID 2572 wrote to memory of 928	2572	c108cf148871b8_JC.exe	42
PID 2572 wrote to memory of 928	2572	c108cf148871b8_JC.exe	42
PID 2572 wrote to memory of 928	2572	c108cf148871b8_JC.exe	42
PID 2572 wrote to memory of 928	2572	c108cf148871b8_JC.exe	42
PID 2572 wrote to memory of 564	2572	c108cf148871b8_JC.exe	44
PID 2572 wrote to memory of 564	2572	c108cf148871b8_JC.exe	44
PID 2572 wrote to memory of 564	2572	c108cf148871b8_JC.exe	44
PID 2572 wrote to memory of 564	2572	c108cf148871b8_JC.exe	44
PID 2572 wrote to memory of 892	2572	c108cf148871b8_JC.exe	46
PID 2572 wrote to memory of 892	2572	c108cf148871b8_JC.exe	46
PID 2572 wrote to memory of 892	2572	c108cf148871b8_JC.exe	46
PID 2572 wrote to memory of 892	2572	c108cf148871b8_JC.exe	46
PID 2572 wrote to memory of 2156	2572	c108cf148871b8_JC.exe	48
PID 2572 wrote to memory of 2156	2572	c108cf148871b8_JC.exe	48
PID 2572 wrote to memory of 2156	2572	c108cf148871b8_JC.exe	48
PID 2572 wrote to memory of 2156	2572	c108cf148871b8_JC.exe	48
PID 2572 wrote to memory of 2472	2572	c108cf148871b8_JC.exe	50
PID 2572 wrote to memory of 2472	2572	c108cf148871b8_JC.exe	50
PID 2572 wrote to memory of 2472	2572	c108cf148871b8_JC.exe	50
PID 2572 wrote to memory of 2472	2572	c108cf148871b8_JC.exe	50
PID 2572 wrote to memory of 2740	2572	c108cf148871b8_JC.exe	52
PID 2572 wrote to memory of 2740	2572	c108cf148871b8_JC.exe	52
PID 2572 wrote to memory of 2740	2572	c108cf148871b8_JC.exe	52
PID 2572 wrote to memory of 2740	2572	c108cf148871b8_JC.exe	52
PID 2572 wrote to memory of 1084	2572	c108cf148871b8_JC.exe	54
PID 2572 wrote to memory of 1084	2572	c108cf148871b8_JC.exe	54
PID 2572 wrote to memory of 1084	2572	c108cf148871b8_JC.exe	54
PID 2572 wrote to memory of 1084	2572	c108cf148871b8_JC.exe	54
PID 2572 wrote to memory of 1108	2572	c108cf148871b8_JC.exe	56
PID 2572 wrote to memory of 1108	2572	c108cf148871b8_JC.exe	56
PID 2572 wrote to memory of 1108	2572	c108cf148871b8_JC.exe	56
PID 2572 wrote to memory of 1108	2572	c108cf148871b8_JC.exe	56

C:\Users\Admin\AppData\Local\Temp\c108cf148871b8_JC.exe
"C:\Users\Admin\AppData\Local\Temp\c108cf148871b8_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2572
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:3024
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:3068
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2732
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2436
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2428
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:336
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:928
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:564
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:892
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2156
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2472
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2740
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1084
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1108

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2572-54-0x000000000AB70000-0x000000000AC70000-memory.dmp

Filesize
1024KB

Download
memory/2572-55-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2572-56-0x00000000002B0000-0x00000000002C7000-memory.dmp

Filesize
92KB

Download
memory/2572-63-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2572-64-0x000000000AB70000-0x000000000AC70000-memory.dmp

Filesize
1024KB

Download
memory/2572-65-0x00000000002B0000-0x00000000002C7000-memory.dmp

Filesize
92KB

Download