gandcrab | 097b7084a2ae68f38194f76d7b361828db302addbebeb4143cb47f6cca04f9ff

Analysis

max time kernel
147s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21-02-2024 14:17

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General

Target

2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
Size

250KB
MD5

f63953bcfa4f4fcc8d75d63e06591958
SHA1

8eabdc317ba393f938f6617148c906d89d4f89d5
SHA256

097b7084a2ae68f38194f76d7b361828db302addbebeb4143cb47f6cca04f9ff
SHA512

669d0583295ad1c0f8a08040ff7c578c00dbff7fad4d2669647060e0a90867dcc55796dca8a7012f51f6a8f601477fbed26cfb3c9b97732a82da91c7c733a9f0
SSDEEP

6144:c+YrOIBjaklexBgiJ8sTSIkIpxIp8mDtfPBRwasxXq:UOCjaklYgVIpxIhDtR

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/1232-3-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/1232-4-0x0000000000270000-0x0000000000287000-memory.dmp	family_gandcrab
behavioral1/memory/1232-11-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/1232-13-0x0000000000270000-0x0000000000287000-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/1232-3-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1232-4-0x0000000000270000-0x0000000000287000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1232-11-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1232-13-0x0000000000270000-0x0000000000287000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 4 IoCs

resource	yara_rule
behavioral1/memory/1232-3-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/1232-4-0x0000000000270000-0x0000000000287000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/1232-11-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/1232-13-0x0000000000270000-0x0000000000287000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1232-3-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/1232-4-0x0000000000270000-0x0000000000287000-memory.dmp	Gandcrab
behavioral1/memory/1232-11-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/1232-13-0x0000000000270000-0x0000000000287000-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\lcsfpnhkwct = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\czklet.exe\""	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_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)	\??\H:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 2892	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	28
PID 1232 wrote to memory of 2892	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	28
PID 1232 wrote to memory of 2892	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	28
PID 1232 wrote to memory of 2892	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	28
PID 1232 wrote to memory of 2876	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	30
PID 1232 wrote to memory of 2876	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	30
PID 1232 wrote to memory of 2876	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	30
PID 1232 wrote to memory of 2876	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	30
PID 1232 wrote to memory of 2884	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	32
PID 1232 wrote to memory of 2884	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	32
PID 1232 wrote to memory of 2884	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	32
PID 1232 wrote to memory of 2884	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	32
PID 1232 wrote to memory of 2620	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	34
PID 1232 wrote to memory of 2620	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	34
PID 1232 wrote to memory of 2620	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	34
PID 1232 wrote to memory of 2620	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	34
PID 1232 wrote to memory of 2552	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	36
PID 1232 wrote to memory of 2552	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	36
PID 1232 wrote to memory of 2552	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	36
PID 1232 wrote to memory of 2552	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	36
PID 1232 wrote to memory of 2512	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	38
PID 1232 wrote to memory of 2512	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	38
PID 1232 wrote to memory of 2512	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	38
PID 1232 wrote to memory of 2512	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	38
PID 1232 wrote to memory of 3016	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	40
PID 1232 wrote to memory of 3016	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	40
PID 1232 wrote to memory of 3016	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	40
PID 1232 wrote to memory of 3016	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	40
PID 1232 wrote to memory of 2656	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	44
PID 1232 wrote to memory of 2656	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	44
PID 1232 wrote to memory of 2656	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	44
PID 1232 wrote to memory of 2656	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	44
PID 1232 wrote to memory of 1984	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	46
PID 1232 wrote to memory of 1984	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	46
PID 1232 wrote to memory of 1984	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	46
PID 1232 wrote to memory of 1984	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	46
PID 1232 wrote to memory of 2952	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	48
PID 1232 wrote to memory of 2952	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	48
PID 1232 wrote to memory of 2952	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	48
PID 1232 wrote to memory of 2952	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	48
PID 1232 wrote to memory of 672	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	50
PID 1232 wrote to memory of 672	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	50
PID 1232 wrote to memory of 672	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	50
PID 1232 wrote to memory of 672	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	50
PID 1232 wrote to memory of 1964	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	52
PID 1232 wrote to memory of 1964	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	52
PID 1232 wrote to memory of 1964	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	52
PID 1232 wrote to memory of 1964	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	52
PID 1232 wrote to memory of 1944	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	54
PID 1232 wrote to memory of 1944	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	54
PID 1232 wrote to memory of 1944	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	54
PID 1232 wrote to memory of 1944	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	54
PID 1232 wrote to memory of 432	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	56
PID 1232 wrote to memory of 432	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	56
PID 1232 wrote to memory of 432	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	56
PID 1232 wrote to memory of 432	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	56
PID 1232 wrote to memory of 1476	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	58
PID 1232 wrote to memory of 1476	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	58
PID 1232 wrote to memory of 1476	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	58
PID 1232 wrote to memory of 1476	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	58
PID 1232 wrote to memory of 2104	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	60
PID 1232 wrote to memory of 2104	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	60
PID 1232 wrote to memory of 2104	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	60
PID 1232 wrote to memory of 2104	1232	2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_f63953bcfa4f4fcc8d75d63e06591958_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:1232
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2892
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2876
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2884
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2620
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2552
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2512
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:3016
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2656
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1984
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2952
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:672
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1964
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1944
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:432
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1476
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2104
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1188
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:636
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1880
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2412
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1268
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1708
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1384
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:844

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/1232-0-0x0000000000220000-0x000000000023B000-memory.dmp

Filesize
108KB

Download
memory/1232-1-0x0000000000220000-0x000000000023B000-memory.dmp

Filesize
108KB

Download
memory/1232-2-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1232-3-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1232-4-0x0000000000270000-0x0000000000287000-memory.dmp

Filesize
92KB

Download
memory/1232-11-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1232-13-0x0000000000270000-0x0000000000287000-memory.dmp

Filesize
92KB

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