gandcrab | 76b12897092e36c3f57adaf3d06d17031bb8a1f8a88114b0f94fba10b748f110

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
11-03-2024 04:27

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General

Target

2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
Size

250KB
MD5

3febe0c641b959b66c95876d1b9e6f0e
SHA1

64c67979cbf680bbada1bad10330e59948a461f4
SHA256

76b12897092e36c3f57adaf3d06d17031bb8a1f8a88114b0f94fba10b748f110
SHA512

5fa4e222c83a93ff38b65023cecaf2cfdbbd8dfb283019bc880eb65d238f89d9c5ce802ff322316d73d29233572dc28f93e8b6758ebc95c6556c7e70e99c2a64
SSDEEP

6144:7+YrOIBjaklexBgiJ8sTSIkIpxIp8mDtfPBRwasxXq:POCjaklYgVIpxIhDtR

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2344-3-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/2344-4-0x00000000005E0000-0x00000000005F7000-memory.dmp	family_gandcrab
behavioral1/memory/2344-6-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/2344-14-0x00000000005E0000-0x00000000005F7000-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/2344-3-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2344-4-0x00000000005E0000-0x00000000005F7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2344-6-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2344-14-0x00000000005E0000-0x00000000005F7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 4 IoCs

resource	yara_rule
behavioral1/memory/2344-3-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2344-4-0x00000000005E0000-0x00000000005F7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2344-6-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2344-14-0x00000000005E0000-0x00000000005F7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2344-3-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/2344-4-0x00000000005E0000-0x00000000005F7000-memory.dmp	Gandcrab
behavioral1/memory/2344-6-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/2344-14-0x00000000005E0000-0x00000000005F7000-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\kzduupsufud = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\zbfppg.exe\""	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_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)	\??\Z:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_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	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2344 wrote to memory of 1812	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	28
PID 2344 wrote to memory of 1812	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	28
PID 2344 wrote to memory of 1812	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	28
PID 2344 wrote to memory of 1812	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	28
PID 2344 wrote to memory of 2632	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	30
PID 2344 wrote to memory of 2632	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	30
PID 2344 wrote to memory of 2632	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	30
PID 2344 wrote to memory of 2632	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	30
PID 2344 wrote to memory of 2692	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	32
PID 2344 wrote to memory of 2692	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	32
PID 2344 wrote to memory of 2692	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	32
PID 2344 wrote to memory of 2692	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	32
PID 2344 wrote to memory of 2752	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	34
PID 2344 wrote to memory of 2752	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	34
PID 2344 wrote to memory of 2752	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	34
PID 2344 wrote to memory of 2752	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	34
PID 2344 wrote to memory of 2644	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	36
PID 2344 wrote to memory of 2644	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	36
PID 2344 wrote to memory of 2644	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	36
PID 2344 wrote to memory of 2644	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	36
PID 2344 wrote to memory of 1660	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	38
PID 2344 wrote to memory of 1660	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	38
PID 2344 wrote to memory of 1660	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	38
PID 2344 wrote to memory of 1660	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	38
PID 2344 wrote to memory of 2760	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	42
PID 2344 wrote to memory of 2760	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	42
PID 2344 wrote to memory of 2760	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	42
PID 2344 wrote to memory of 2760	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	42
PID 2344 wrote to memory of 1620	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	44
PID 2344 wrote to memory of 1620	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	44
PID 2344 wrote to memory of 1620	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	44
PID 2344 wrote to memory of 1620	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	44
PID 2344 wrote to memory of 1944	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	46
PID 2344 wrote to memory of 1944	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	46
PID 2344 wrote to memory of 1944	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	46
PID 2344 wrote to memory of 1944	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	46
PID 2344 wrote to memory of 2740	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	48
PID 2344 wrote to memory of 2740	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	48
PID 2344 wrote to memory of 2740	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	48
PID 2344 wrote to memory of 2740	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	48
PID 2344 wrote to memory of 1408	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	50
PID 2344 wrote to memory of 1408	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	50
PID 2344 wrote to memory of 1408	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	50
PID 2344 wrote to memory of 1408	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	50
PID 2344 wrote to memory of 2520	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	52
PID 2344 wrote to memory of 2520	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	52
PID 2344 wrote to memory of 2520	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	52
PID 2344 wrote to memory of 2520	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	52
PID 2344 wrote to memory of 2100	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	54
PID 2344 wrote to memory of 2100	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	54
PID 2344 wrote to memory of 2100	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	54
PID 2344 wrote to memory of 2100	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	54
PID 2344 wrote to memory of 2016	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	56
PID 2344 wrote to memory of 2016	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	56
PID 2344 wrote to memory of 2016	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	56
PID 2344 wrote to memory of 2016	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	56
PID 2344 wrote to memory of 1020	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	58
PID 2344 wrote to memory of 1020	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	58
PID 2344 wrote to memory of 1020	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	58
PID 2344 wrote to memory of 1020	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	58
PID 2344 wrote to memory of 2356	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	60
PID 2344 wrote to memory of 2356	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	60
PID 2344 wrote to memory of 2356	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	60
PID 2344 wrote to memory of 2356	2344	2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_3febe0c641b959b66c95876d1b9e6f0e_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:2344
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1812
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2632
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2692
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2752
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2644
- 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:2760
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1620
- 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:2740
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1408
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2520
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2100
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2016
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1020
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2356
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1476
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.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/2344-0-0x00000000001B0000-0x00000000001CB000-memory.dmp

Filesize
108KB

Download
memory/2344-1-0x00000000001B0000-0x00000000001CB000-memory.dmp

Filesize
108KB

Download
memory/2344-2-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2344-3-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2344-4-0x00000000005E0000-0x00000000005F7000-memory.dmp

Filesize
92KB

Download
memory/2344-6-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

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memory/2344-14-0x00000000005E0000-0x00000000005F7000-memory.dmp

Filesize
92KB

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