gandcrab | a2a1b3b73f1cb6d8fe3a67c4adad6c785fe1a9ffb37c26d96dad93479a2dff58

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 18:32

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General

Target

2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
Size

308KB
MD5

519e629cbff98b50738ad125e216e543
SHA1

7521f0bfb09bbc26f7c03827f1dc2004f106d076
SHA256

a2a1b3b73f1cb6d8fe3a67c4adad6c785fe1a9ffb37c26d96dad93479a2dff58
SHA512

2f6a301d9e6c70b352f28e05a1210a509dbdf300e3cd7e03bc0230bb2a9c18458264a479dd88f699e55e12126a75e1da1afecdfa36faa960eb4c008a8ef786bc
SSDEEP

6144:OzL7ShWDLVzVNam6GxI29dqG3KdYAYqTuPZp:MDHNam62ZdKmZmuPH

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2548-2-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2548-3-0x00000000002E0000-0x00000000002F7000-memory.dmp	family_gandcrab
behavioral1/memory/2548-10-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2548-13-0x00000000002E0000-0x00000000002F7000-memory.dmp	family_gandcrab

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

Detects Reflective DLL injection artifacts 4 IoCs

resource	yara_rule
behavioral1/memory/2548-2-0x0000000000400000-0x0000000001400000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2548-3-0x00000000002E0000-0x00000000002F7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2548-10-0x0000000000400000-0x0000000001400000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2548-13-0x00000000002E0000-0x00000000002F7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 2 IoCs

resource	yara_rule
behavioral1/memory/2548-3-0x00000000002E0000-0x00000000002F7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2548-13-0x00000000002E0000-0x00000000002F7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2548-2-0x0000000000400000-0x0000000001400000-memory.dmp	Gandcrab
behavioral1/memory/2548-3-0x00000000002E0000-0x00000000002F7000-memory.dmp	Gandcrab
behavioral1/memory/2548-10-0x0000000000400000-0x0000000001400000-memory.dmp	Gandcrab
behavioral1/memory/2548-13-0x00000000002E0000-0x00000000002F7000-memory.dmp	Gandcrab

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\vgfirghtlyz = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\xmlzji.exe\""	2024-02-21_519e629cbff98b50738ad125e216e543_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)	\??\A:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-02-21_519e629cbff98b50738ad125e216e543_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	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 2828	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	28
PID 2548 wrote to memory of 2828	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	28
PID 2548 wrote to memory of 2828	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	28
PID 2548 wrote to memory of 2828	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	28
PID 2548 wrote to memory of 2804	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	30
PID 2548 wrote to memory of 2804	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	30
PID 2548 wrote to memory of 2804	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	30
PID 2548 wrote to memory of 2804	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	30
PID 2548 wrote to memory of 2380	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	32
PID 2548 wrote to memory of 2380	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	32
PID 2548 wrote to memory of 2380	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	32
PID 2548 wrote to memory of 2380	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	32
PID 2548 wrote to memory of 1996	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	34
PID 2548 wrote to memory of 1996	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	34
PID 2548 wrote to memory of 1996	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	34
PID 2548 wrote to memory of 1996	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	34
PID 2548 wrote to memory of 2652	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	36
PID 2548 wrote to memory of 2652	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	36
PID 2548 wrote to memory of 2652	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	36
PID 2548 wrote to memory of 2652	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	36
PID 2548 wrote to memory of 2840	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	40
PID 2548 wrote to memory of 2840	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	40
PID 2548 wrote to memory of 2840	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	40
PID 2548 wrote to memory of 2840	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	40
PID 2548 wrote to memory of 2124	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	42
PID 2548 wrote to memory of 2124	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	42
PID 2548 wrote to memory of 2124	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	42
PID 2548 wrote to memory of 2124	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	42
PID 2548 wrote to memory of 2448	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	44
PID 2548 wrote to memory of 2448	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	44
PID 2548 wrote to memory of 2448	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	44
PID 2548 wrote to memory of 2448	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	44
PID 2548 wrote to memory of 1704	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	46
PID 2548 wrote to memory of 1704	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	46
PID 2548 wrote to memory of 1704	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	46
PID 2548 wrote to memory of 1704	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	46
PID 2548 wrote to memory of 2040	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	48
PID 2548 wrote to memory of 2040	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	48
PID 2548 wrote to memory of 2040	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	48
PID 2548 wrote to memory of 2040	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	48
PID 2548 wrote to memory of 1100	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	50
PID 2548 wrote to memory of 1100	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	50
PID 2548 wrote to memory of 1100	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	50
PID 2548 wrote to memory of 1100	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	50
PID 2548 wrote to memory of 1644	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	52
PID 2548 wrote to memory of 1644	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	52
PID 2548 wrote to memory of 1644	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	52
PID 2548 wrote to memory of 1644	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	52
PID 2548 wrote to memory of 2056	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	54
PID 2548 wrote to memory of 2056	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	54
PID 2548 wrote to memory of 2056	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	54
PID 2548 wrote to memory of 2056	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	54
PID 2548 wrote to memory of 1600	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	56
PID 2548 wrote to memory of 1600	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	56
PID 2548 wrote to memory of 1600	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	56
PID 2548 wrote to memory of 1600	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	56
PID 2548 wrote to memory of 2060	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	58
PID 2548 wrote to memory of 2060	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	58
PID 2548 wrote to memory of 2060	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	58
PID 2548 wrote to memory of 2060	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	58
PID 2548 wrote to memory of 1992	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	60
PID 2548 wrote to memory of 1992	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	60
PID 2548 wrote to memory of 1992	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	60
PID 2548 wrote to memory of 1992	2548	2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-02-21_519e629cbff98b50738ad125e216e543_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_519e629cbff98b50738ad125e216e543_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:2548
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2828
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2804
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2380
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1996
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2652
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2840
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2124
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2448
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1704
- 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:1100
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1644
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2056
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1600
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2060
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1992
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1724
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1368
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1536
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1772
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:768
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1912
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1560
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2020

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/2548-1-0x000000000AA70000-0x000000000AB70000-memory.dmp

Filesize
1024KB

Download
memory/2548-2-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2548-3-0x00000000002E0000-0x00000000002F7000-memory.dmp

Filesize
92KB

Download
memory/2548-10-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2548-12-0x000000000AA70000-0x000000000AB70000-memory.dmp

Filesize
1024KB

Download
memory/2548-13-0x00000000002E0000-0x00000000002F7000-memory.dmp

Filesize
92KB

Download