gandcrab | 46154c596e1050d677eb6bcdabad6b42def866e1f20da50879a3d82e3d9f825a

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
27/08/2023, 16:52

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General

Target

b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
Size

312KB
MD5

b3c51450bf1b6e6cac7616319cebaf8b
SHA1

15674b1fca8ba06d7a84241264ef755e7b8f6de9
SHA256

46154c596e1050d677eb6bcdabad6b42def866e1f20da50879a3d82e3d9f825a
SHA512

000043ea3460068d5c472efa2bd8e24100caacf7033d95f31903f38324e38a5d71c6e0f21de131ce9d6e1a8958a70e18cf50faf8d488703f7365483967da55fe
SSDEEP

6144:u6jtiQHr3ByVhPYDe/mZFORawnkdoo7H7MPiJT9QhrvT8vRiXdx97/uMiqa:uGTghcYaYIL7MPiJT9mP8vRiXdx97Xa

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/1080-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_gandcrab
behavioral1/memory/1080-5-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab
behavioral1/memory/1080-13-0x0000000000400000-0x000000000044C000-memory.dmp	family_gandcrab
behavioral1/memory/1080-15-0x0000000000220000-0x0000000000237000-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\forwqluafqw = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\brzxkr.exe\""	b3c51450bf1b6e6cac7616319cebaf8b_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)	\??\I:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\K:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\R:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\S:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\T:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\W:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\X:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\Y:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\L:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\N:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\P:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\V:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\Z:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\B:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\G:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\H:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\J:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\M:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\O:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\Q:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\A:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\E:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
File opened (read-only)	\??\U:	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 2924	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	28
PID 1080 wrote to memory of 2924	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	28
PID 1080 wrote to memory of 2924	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	28
PID 1080 wrote to memory of 2924	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	28
PID 1080 wrote to memory of 2812	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	30
PID 1080 wrote to memory of 2812	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	30
PID 1080 wrote to memory of 2812	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	30
PID 1080 wrote to memory of 2812	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	30
PID 1080 wrote to memory of 2744	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	34
PID 1080 wrote to memory of 2744	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	34
PID 1080 wrote to memory of 2744	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	34
PID 1080 wrote to memory of 2744	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	34
PID 1080 wrote to memory of 2280	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	36
PID 1080 wrote to memory of 2280	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	36
PID 1080 wrote to memory of 2280	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	36
PID 1080 wrote to memory of 2280	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	36
PID 1080 wrote to memory of 336	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	38
PID 1080 wrote to memory of 336	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	38
PID 1080 wrote to memory of 336	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	38
PID 1080 wrote to memory of 336	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	38
PID 1080 wrote to memory of 584	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	40
PID 1080 wrote to memory of 584	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	40
PID 1080 wrote to memory of 584	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	40
PID 1080 wrote to memory of 584	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	40
PID 1080 wrote to memory of 2028	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	42
PID 1080 wrote to memory of 2028	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	42
PID 1080 wrote to memory of 2028	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	42
PID 1080 wrote to memory of 2028	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	42
PID 1080 wrote to memory of 1168	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	44
PID 1080 wrote to memory of 1168	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	44
PID 1080 wrote to memory of 1168	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	44
PID 1080 wrote to memory of 1168	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	44
PID 1080 wrote to memory of 2876	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	46
PID 1080 wrote to memory of 2876	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	46
PID 1080 wrote to memory of 2876	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	46
PID 1080 wrote to memory of 2876	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	46
PID 1080 wrote to memory of 2264	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	48
PID 1080 wrote to memory of 2264	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	48
PID 1080 wrote to memory of 2264	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	48
PID 1080 wrote to memory of 2264	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	48
PID 1080 wrote to memory of 2324	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	50
PID 1080 wrote to memory of 2324	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	50
PID 1080 wrote to memory of 2324	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	50
PID 1080 wrote to memory of 2324	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	50
PID 1080 wrote to memory of 2196	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	52
PID 1080 wrote to memory of 2196	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	52
PID 1080 wrote to memory of 2196	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	52
PID 1080 wrote to memory of 2196	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	52
PID 1080 wrote to memory of 2636	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	54
PID 1080 wrote to memory of 2636	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	54
PID 1080 wrote to memory of 2636	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	54
PID 1080 wrote to memory of 2636	1080	b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe	54

C:\Users\Admin\AppData\Local\Temp\b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe
"C:\Users\Admin\AppData\Local\Temp\b3c51450bf1b6e6cac7616319cebaf8b_mafia_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2924
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2812
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2744
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2280
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:336
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:584
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2028
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1168
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2876
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2264
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2324
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2196
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2636

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

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Downloads

memory/1080-1-0x00000000008B0000-0x00000000009B0000-memory.dmp

Filesize
1024KB

Download
memory/1080-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1080-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1080-5-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/1080-12-0x00000000008B0000-0x00000000009B0000-memory.dmp

Filesize
1024KB

Download
memory/1080-13-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1080-15-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download