gandcrab | 71a754b5f425109142db9aa38c370c5bc7550d4a91ea4b314751337256f5921c

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18-03-2024 10:43

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General

Target

2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
Size

250KB
MD5

a0c56feb29065f3a534b6f60c3eb5970
SHA1

04b0a88fa72e963aa4537731099bcaf3302a17fa
SHA256

71a754b5f425109142db9aa38c370c5bc7550d4a91ea4b314751337256f5921c
SHA512

446be8384cb94c1d1a65194ce0183d12aa722af48cbc3860b1469333ae432011db1a24d09ef45abdcb429c303f6c570d63ebbe502484ee8d62ffa17d835529e1
SSDEEP

3072:W/yK5d0Gj0+nY3uEBLvBNfdUR2/qFnB8o2+vU3WuvIBuj00nReaXkuSQ7cdOd3:W/y20Gj0r+EBFrkvlU3RvIUDOIN

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2928-4-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/2928-5-0x0000000000380000-0x0000000000397000-memory.dmp	family_gandcrab
behavioral1/memory/2928-7-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/2928-16-0x0000000000380000-0x0000000000397000-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/2928-4-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2928-5-0x0000000000380000-0x0000000000397000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2928-7-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2928-16-0x0000000000380000-0x0000000000397000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 4 IoCs

resource	yara_rule
behavioral1/memory/2928-4-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2928-5-0x0000000000380000-0x0000000000397000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2928-7-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2928-16-0x0000000000380000-0x0000000000397000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2928-4-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/2928-5-0x0000000000380000-0x0000000000397000-memory.dmp	Gandcrab
behavioral1/memory/2928-7-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/2928-16-0x0000000000380000-0x0000000000397000-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\ohsecmmgzad = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\ghgcds.exe\""	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_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)	\??\K:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_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	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2928 wrote to memory of 2584	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	28
PID 2928 wrote to memory of 2584	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	28
PID 2928 wrote to memory of 2584	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	28
PID 2928 wrote to memory of 2584	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	28
PID 2928 wrote to memory of 2112	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	30
PID 2928 wrote to memory of 2112	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	30
PID 2928 wrote to memory of 2112	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	30
PID 2928 wrote to memory of 2112	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	30
PID 2928 wrote to memory of 2740	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	32
PID 2928 wrote to memory of 2740	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	32
PID 2928 wrote to memory of 2740	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	32
PID 2928 wrote to memory of 2740	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	32
PID 2928 wrote to memory of 2480	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	34
PID 2928 wrote to memory of 2480	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	34
PID 2928 wrote to memory of 2480	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	34
PID 2928 wrote to memory of 2480	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	34
PID 2928 wrote to memory of 2484	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	36
PID 2928 wrote to memory of 2484	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	36
PID 2928 wrote to memory of 2484	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	36
PID 2928 wrote to memory of 2484	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	36
PID 2928 wrote to memory of 2004	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	38
PID 2928 wrote to memory of 2004	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	38
PID 2928 wrote to memory of 2004	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	38
PID 2928 wrote to memory of 2004	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	38
PID 2928 wrote to memory of 2764	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	42
PID 2928 wrote to memory of 2764	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	42
PID 2928 wrote to memory of 2764	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	42
PID 2928 wrote to memory of 2764	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	42
PID 2928 wrote to memory of 1824	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	44
PID 2928 wrote to memory of 1824	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	44
PID 2928 wrote to memory of 1824	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	44
PID 2928 wrote to memory of 1824	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	44
PID 2928 wrote to memory of 1624	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	46
PID 2928 wrote to memory of 1624	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	46
PID 2928 wrote to memory of 1624	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	46
PID 2928 wrote to memory of 1624	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	46
PID 2928 wrote to memory of 2556	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	48
PID 2928 wrote to memory of 2556	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	48
PID 2928 wrote to memory of 2556	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	48
PID 2928 wrote to memory of 2556	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	48
PID 2928 wrote to memory of 1672	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	50
PID 2928 wrote to memory of 1672	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	50
PID 2928 wrote to memory of 1672	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	50
PID 2928 wrote to memory of 1672	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	50
PID 2928 wrote to memory of 1656	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	52
PID 2928 wrote to memory of 1656	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	52
PID 2928 wrote to memory of 1656	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	52
PID 2928 wrote to memory of 1656	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	52
PID 2928 wrote to memory of 1100	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	54
PID 2928 wrote to memory of 1100	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	54
PID 2928 wrote to memory of 1100	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	54
PID 2928 wrote to memory of 1100	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	54
PID 2928 wrote to memory of 2108	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	56
PID 2928 wrote to memory of 2108	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	56
PID 2928 wrote to memory of 2108	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	56
PID 2928 wrote to memory of 2108	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	56
PID 2928 wrote to memory of 1492	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	58
PID 2928 wrote to memory of 1492	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	58
PID 2928 wrote to memory of 1492	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	58
PID 2928 wrote to memory of 1492	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	58
PID 2928 wrote to memory of 1916	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	60
PID 2928 wrote to memory of 1916	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	60
PID 2928 wrote to memory of 1916	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	60
PID 2928 wrote to memory of 1916	2928	2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_a0c56feb29065f3a534b6f60c3eb5970_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:2928
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2584
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2112
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2740
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2480
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2484
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2004
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2764
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1824
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1624
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2556
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1672
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1656
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1100
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2108
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1492
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1916
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:824
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1204
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1628

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/2928-2-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2928-3-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2928-4-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2928-5-0x0000000000380000-0x0000000000397000-memory.dmp

Filesize
92KB

Download
memory/2928-7-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2928-15-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2928-16-0x0000000000380000-0x0000000000397000-memory.dmp

Filesize
92KB

Download