gandcrab | f5d0c0989e2529775f748d73b87e5e9a457034ca0691607540d555fe937fde07

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
27/08/2023, 15:12

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General

Target

acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
Size

250KB
MD5

acaa77d5c0358b0c2b350af1b5ebee3c
SHA1

7780b929bcc446166ee31631cd24e4fea70d50a9
SHA256

f5d0c0989e2529775f748d73b87e5e9a457034ca0691607540d555fe937fde07
SHA512

610f7a6b91cc1c432aaa7020fe43a1affa79d8e5b07db2a30c34e4f90acc9ba89c28d874d058c854e0e16599edb23b8c27c599bac1dbb79a6f8fbc45bb55f04f
SSDEEP

6144:c+YrOIBjaklexBgiJ8sTSIkIpxIp8mDtfPBRwasxXq:UOCjaklYgVIpxIhDtR

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/3024-3-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/3024-5-0x0000000000240000-0x0000000000257000-memory.dmp	family_gandcrab
behavioral1/memory/3024-13-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/3024-15-0x0000000000240000-0x0000000000257000-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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\mumksbatgvt = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\tzwfdb.exe\""	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_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)	\??\Q:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\S:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\Z:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\I:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\G:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\H:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\L:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\U:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\V:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\W:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\X:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\E:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\B:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\K:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\M:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\N:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\P:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\Y:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\A:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\O:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\R:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\T:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
File opened (read-only)	\??\J:	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 2992	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	28
PID 3024 wrote to memory of 2992	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	28
PID 3024 wrote to memory of 2992	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	28
PID 3024 wrote to memory of 2992	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	28
PID 3024 wrote to memory of 2908	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	30
PID 3024 wrote to memory of 2908	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	30
PID 3024 wrote to memory of 2908	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	30
PID 3024 wrote to memory of 2908	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	30
PID 3024 wrote to memory of 2728	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	34
PID 3024 wrote to memory of 2728	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	34
PID 3024 wrote to memory of 2728	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	34
PID 3024 wrote to memory of 2728	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	34
PID 3024 wrote to memory of 2804	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	36
PID 3024 wrote to memory of 2804	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	36
PID 3024 wrote to memory of 2804	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	36
PID 3024 wrote to memory of 2804	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	36
PID 3024 wrote to memory of 2556	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	38
PID 3024 wrote to memory of 2556	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	38
PID 3024 wrote to memory of 2556	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	38
PID 3024 wrote to memory of 2556	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	38
PID 3024 wrote to memory of 272	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	40
PID 3024 wrote to memory of 272	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	40
PID 3024 wrote to memory of 272	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	40
PID 3024 wrote to memory of 272	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	40
PID 3024 wrote to memory of 2708	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	42
PID 3024 wrote to memory of 2708	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	42
PID 3024 wrote to memory of 2708	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	42
PID 3024 wrote to memory of 2708	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	42
PID 3024 wrote to memory of 840	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	44
PID 3024 wrote to memory of 840	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	44
PID 3024 wrote to memory of 840	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	44
PID 3024 wrote to memory of 840	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	44
PID 3024 wrote to memory of 2268	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	46
PID 3024 wrote to memory of 2268	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	46
PID 3024 wrote to memory of 2268	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	46
PID 3024 wrote to memory of 2268	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	46
PID 3024 wrote to memory of 1900	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	48
PID 3024 wrote to memory of 1900	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	48
PID 3024 wrote to memory of 1900	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	48
PID 3024 wrote to memory of 1900	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	48
PID 3024 wrote to memory of 820	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	50
PID 3024 wrote to memory of 820	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	50
PID 3024 wrote to memory of 820	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	50
PID 3024 wrote to memory of 820	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	50
PID 3024 wrote to memory of 2796	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	52
PID 3024 wrote to memory of 2796	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	52
PID 3024 wrote to memory of 2796	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	52
PID 3024 wrote to memory of 2796	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	52
PID 3024 wrote to memory of 1540	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	54
PID 3024 wrote to memory of 1540	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	54
PID 3024 wrote to memory of 1540	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	54
PID 3024 wrote to memory of 1540	3024	acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe	54

C:\Users\Admin\AppData\Local\Temp\acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe
"C:\Users\Admin\AppData\Local\Temp\acaa77d5c0358b0c2b350af1b5ebee3c_mafia_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2992
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2908
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2728
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2804
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2556
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:272
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2708
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:840
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2268
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1900
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:820
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2796
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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/3024-0-0x0000000000220000-0x000000000023B000-memory.dmp

Filesize
108KB

Download
memory/3024-1-0x0000000000220000-0x000000000023B000-memory.dmp

Filesize
108KB

Download
memory/3024-2-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3024-3-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3024-5-0x0000000000240000-0x0000000000257000-memory.dmp

Filesize
92KB

Download
memory/3024-12-0x0000000000220000-0x000000000023B000-memory.dmp

Filesize
108KB

Download
memory/3024-13-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3024-15-0x0000000000240000-0x0000000000257000-memory.dmp

Filesize
92KB

Download