gandcrab | be25b9fee57ac389d1fed0cc460bedbe38632af6f7480ddc3bae8280991d892f

Analysis

max time kernel
13s
max time network
146s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
09/01/2024, 06:44

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General

Target

2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
Size

308KB
MD5

8c7b2acef3b04a2a9258f596c913d7b3
SHA1

edc368422b0c11ef909e73799545394235a4dc97
SHA256

be25b9fee57ac389d1fed0cc460bedbe38632af6f7480ddc3bae8280991d892f
SHA512

424019ff5a8c34057e9f68b497f7e104bd4de4b95d13fa1d3ab06ca2fb957fda90fbe058b18017b1e0b8932bf618e67b6d23b4c8ac2bce5497fe17c840c751ae
SSDEEP

6144:uzL7ShWDLVzVNam6GxI29dqG3KdYAYqTuPZp:sDHNam62ZdKmZmuPH

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 3 IoCs

resource	yara_rule
behavioral1/memory/2180-2-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2180-3-0x00000000002A0000-0x00000000002B7000-memory.dmp	family_gandcrab
behavioral1/memory/2180-10-0x0000000000400000-0x0000000001400000-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	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	104.155.138.21
Destination IP	107.178.223.183
Destination IP	107.178.223.183
Destination IP	104.155.138.21

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\crhzgwwiojj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\gbnfhu.exe\""	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_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

description	ioc	Process
File opened (read-only)	\??\J:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 1916	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	29
PID 2180 wrote to memory of 1916	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	29
PID 2180 wrote to memory of 1916	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	29
PID 2180 wrote to memory of 1916	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	29
PID 2180 wrote to memory of 2656	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	31
PID 2180 wrote to memory of 2656	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	31
PID 2180 wrote to memory of 2656	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	31
PID 2180 wrote to memory of 2656	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	31
PID 2180 wrote to memory of 2608	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	33
PID 2180 wrote to memory of 2608	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	33
PID 2180 wrote to memory of 2608	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	33
PID 2180 wrote to memory of 2608	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	33
PID 2180 wrote to memory of 2572	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	35
PID 2180 wrote to memory of 2572	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	35
PID 2180 wrote to memory of 2572	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	35
PID 2180 wrote to memory of 2572	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	35
PID 2180 wrote to memory of 2792	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	37
PID 2180 wrote to memory of 2792	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	37
PID 2180 wrote to memory of 2792	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	37
PID 2180 wrote to memory of 2792	2180	2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe	37

C:\Users\Admin\AppData\Local\Temp\2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-08_8c7b2acef3b04a2a9258f596c913d7b3_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:2180
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1916
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2656
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2608
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2572
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2792
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2568
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2464
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2576
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1520
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1660
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1700
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:308
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2232
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2040
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:900
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2632
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2120
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1804
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:696
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:760
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1464
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2204
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2428
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2916
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1404
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1248
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:3040
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:280
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2308
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2128
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:704
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1764
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2636
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1604
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2924
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2252
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2580
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2384
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2480
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2704
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2472
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:768
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2076

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/2180-1-0x000000000AA30000-0x000000000AB30000-memory.dmp

Filesize
1024KB

Download
memory/2180-2-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2180-3-0x00000000002A0000-0x00000000002B7000-memory.dmp

Filesize
92KB

Download
memory/2180-10-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2180-12-0x000000000AA30000-0x000000000AB30000-memory.dmp

Filesize
1024KB

Download
memory/2180-13-0x00000000002A0000-0x00000000002B7000-memory.dmp

Filesize
92KB

Download