gandcrab | a552320affc41de5fdc2cd17199be8d7f5aaf0bdd4b77109dcf5593502622467

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/03/2024, 22:31

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General

Target
2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
Size 250KB
Sample240323-2fva7add84
SHA256 a552320affc41de5fdc2cd17199be8d7f5aaf0bdd4b77109dcf5593502622467
MD5 906cd3f70cc38bde4b2f895575b4b0d6
SHA1 7ae4af8cfca456213cd605b6885024037717831e
SHA512 f1cc4e5638ed9c41c0786d4e8263bc89317f5267e4c4cf6c37120f3de2afbb18ee96a4111beb6f88f73828f3646e42d73a791dbf5efd9f58959bdd16537785d8
SSDEEP 3072:I/yK5d0Gj0+nY3uEBLvBNfdUR2/qFnB8o2+vU3WuvIBuj00nReaXkuSQ7cdOd3:I/y20Gj0r+EBFrkvlU3RvIUDOIN
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/1984-4-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/1984-5-0x00000000003C0000-0x00000000003D7000-memory.dmp	family_gandcrab
behavioral1/memory/1984-7-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/1984-16-0x00000000003C0000-0x00000000003D7000-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/1984-4-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1984-5-0x00000000003C0000-0x00000000003D7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1984-7-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1984-16-0x00000000003C0000-0x00000000003D7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 4 IoCs

resource	yara_rule
behavioral1/memory/1984-4-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/1984-5-0x00000000003C0000-0x00000000003D7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/1984-7-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/1984-16-0x00000000003C0000-0x00000000003D7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1984-4-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/1984-5-0x00000000003C0000-0x00000000003D7000-memory.dmp	Gandcrab
behavioral1/memory/1984-7-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/1984-16-0x00000000003C0000-0x00000000003D7000-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\jhjdszstrqw = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\unvsjh.exe\""	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_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)	\??\I:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_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	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2620	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	28
PID 1984 wrote to memory of 2620	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	28
PID 1984 wrote to memory of 2620	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	28
PID 1984 wrote to memory of 2620	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	28
PID 1984 wrote to memory of 2560	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	30
PID 1984 wrote to memory of 2560	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	30
PID 1984 wrote to memory of 2560	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	30
PID 1984 wrote to memory of 2560	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	30
PID 1984 wrote to memory of 2860	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	32
PID 1984 wrote to memory of 2860	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	32
PID 1984 wrote to memory of 2860	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	32
PID 1984 wrote to memory of 2860	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	32
PID 1984 wrote to memory of 2368	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	34
PID 1984 wrote to memory of 2368	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	34
PID 1984 wrote to memory of 2368	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	34
PID 1984 wrote to memory of 2368	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	34
PID 1984 wrote to memory of 2404	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	36
PID 1984 wrote to memory of 2404	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	36
PID 1984 wrote to memory of 2404	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	36
PID 1984 wrote to memory of 2404	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	36
PID 1984 wrote to memory of 1708	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	38
PID 1984 wrote to memory of 1708	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	38
PID 1984 wrote to memory of 1708	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	38
PID 1984 wrote to memory of 1708	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	38
PID 1984 wrote to memory of 2424	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	40
PID 1984 wrote to memory of 2424	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	40
PID 1984 wrote to memory of 2424	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	40
PID 1984 wrote to memory of 2424	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	40
PID 1984 wrote to memory of 1748	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	44
PID 1984 wrote to memory of 1748	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	44
PID 1984 wrote to memory of 1748	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	44
PID 1984 wrote to memory of 1748	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	44
PID 1984 wrote to memory of 1640	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	46
PID 1984 wrote to memory of 1640	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	46
PID 1984 wrote to memory of 1640	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	46
PID 1984 wrote to memory of 1640	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	46
PID 1984 wrote to memory of 2088	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	48
PID 1984 wrote to memory of 2088	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	48
PID 1984 wrote to memory of 2088	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	48
PID 1984 wrote to memory of 2088	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	48
PID 1984 wrote to memory of 2016	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	50
PID 1984 wrote to memory of 2016	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	50
PID 1984 wrote to memory of 2016	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	50
PID 1984 wrote to memory of 2016	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	50
PID 1984 wrote to memory of 3040	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	52
PID 1984 wrote to memory of 3040	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	52
PID 1984 wrote to memory of 3040	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	52
PID 1984 wrote to memory of 3040	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	52
PID 1984 wrote to memory of 2828	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	54
PID 1984 wrote to memory of 2828	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	54
PID 1984 wrote to memory of 2828	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	54
PID 1984 wrote to memory of 2828	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	54
PID 1984 wrote to memory of 2768	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	56
PID 1984 wrote to memory of 2768	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	56
PID 1984 wrote to memory of 2768	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	56
PID 1984 wrote to memory of 2768	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	56
PID 1984 wrote to memory of 536	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	58
PID 1984 wrote to memory of 536	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	58
PID 1984 wrote to memory of 536	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	58
PID 1984 wrote to memory of 536	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	58
PID 1984 wrote to memory of 592	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	60
PID 1984 wrote to memory of 592	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	60
PID 1984 wrote to memory of 592	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	60
PID 1984 wrote to memory of 592	1984	2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-23_906cd3f70cc38bde4b2f895575b4b0d6_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:1984
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2620
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2560
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2860
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2368
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2404
- 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:2424
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1748
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1640
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2088
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2016
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:3040
- 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:2768
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:536
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:592
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1672
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:3052
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1200
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1768
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1288
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:992
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:600

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/1984-2-0x0000000000500000-0x0000000000600000-memory.dmp

Download

memory/1984-3-0x0000000000400000-0x0000000000444000-memory.dmp

Download

memory/1984-4-0x0000000000400000-0x0000000000444000-memory.dmp

Download

memory/1984-5-0x00000000003C0000-0x00000000003D7000-memory.dmp

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memory/1984-7-0x0000000000400000-0x0000000000444000-memory.dmp

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memory/1984-15-0x0000000000500000-0x0000000000600000-memory.dmp

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memory/1984-16-0x00000000003C0000-0x00000000003D7000-memory.dmp

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