gandcrab | e7b3e2638196ee147156be97e65a018fc678cdda67603691c5b5ce46cd3d15c5

Analysis

max time kernel
146s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 03:35

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General

Target

2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
Size

250KB
MD5

412c4146bb0e8a8d594e2445a6b57886
SHA1

a805b2385de16d8b88c7f0cf9ec5869638aaf5e5
SHA256

e7b3e2638196ee147156be97e65a018fc678cdda67603691c5b5ce46cd3d15c5
SHA512

ea45915c13219ac527721e49abb08be60ccb8041f2aaa7173032ca6a29ea046e36ffd3309f32fcde856efdaa7dd323382e578e5d73061af27d7c08c84b1728b0
SSDEEP

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

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2008-4-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/2008-5-0x00000000003C0000-0x00000000003D7000-memory.dmp	family_gandcrab
behavioral1/memory/2008-7-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/2008-16-0x00000000003C0000-0x00000000003D7000-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/2008-4-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2008-5-0x00000000003C0000-0x00000000003D7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2008-7-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2008-16-0x00000000003C0000-0x00000000003D7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 4 IoCs

resource	yara_rule
behavioral1/memory/2008-4-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2008-5-0x00000000003C0000-0x00000000003D7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2008-7-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2008-16-0x00000000003C0000-0x00000000003D7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2008-4-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/2008-5-0x00000000003C0000-0x00000000003D7000-memory.dmp	Gandcrab
behavioral1/memory/2008-7-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/2008-16-0x00000000003C0000-0x00000000003D7000-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\avnluznmthz = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\thtifl.exe\""	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_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)	\??\E:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_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	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 2672	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	28
PID 2008 wrote to memory of 2672	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	28
PID 2008 wrote to memory of 2672	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	28
PID 2008 wrote to memory of 2672	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	28
PID 2008 wrote to memory of 2592	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	30
PID 2008 wrote to memory of 2592	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	30
PID 2008 wrote to memory of 2592	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	30
PID 2008 wrote to memory of 2592	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	30
PID 2008 wrote to memory of 2640	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	32
PID 2008 wrote to memory of 2640	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	32
PID 2008 wrote to memory of 2640	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	32
PID 2008 wrote to memory of 2640	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	32
PID 2008 wrote to memory of 2512	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	34
PID 2008 wrote to memory of 2512	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	34
PID 2008 wrote to memory of 2512	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	34
PID 2008 wrote to memory of 2512	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	34
PID 2008 wrote to memory of 2924	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	36
PID 2008 wrote to memory of 2924	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	36
PID 2008 wrote to memory of 2924	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	36
PID 2008 wrote to memory of 2924	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	36
PID 2008 wrote to memory of 2520	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	38
PID 2008 wrote to memory of 2520	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	38
PID 2008 wrote to memory of 2520	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	38
PID 2008 wrote to memory of 2520	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	38
PID 2008 wrote to memory of 1040	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	42
PID 2008 wrote to memory of 1040	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	42
PID 2008 wrote to memory of 1040	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	42
PID 2008 wrote to memory of 1040	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	42
PID 2008 wrote to memory of 2392	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	44
PID 2008 wrote to memory of 2392	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	44
PID 2008 wrote to memory of 2392	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	44
PID 2008 wrote to memory of 2392	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	44
PID 2008 wrote to memory of 920	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	46
PID 2008 wrote to memory of 920	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	46
PID 2008 wrote to memory of 920	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	46
PID 2008 wrote to memory of 920	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	46
PID 2008 wrote to memory of 1600	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	48
PID 2008 wrote to memory of 1600	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	48
PID 2008 wrote to memory of 1600	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	48
PID 2008 wrote to memory of 1600	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	48
PID 2008 wrote to memory of 2140	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	50
PID 2008 wrote to memory of 2140	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	50
PID 2008 wrote to memory of 2140	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	50
PID 2008 wrote to memory of 2140	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	50
PID 2008 wrote to memory of 2804	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	52
PID 2008 wrote to memory of 2804	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	52
PID 2008 wrote to memory of 2804	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	52
PID 2008 wrote to memory of 2804	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	52
PID 2008 wrote to memory of 2092	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	54
PID 2008 wrote to memory of 2092	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	54
PID 2008 wrote to memory of 2092	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	54
PID 2008 wrote to memory of 2092	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	54
PID 2008 wrote to memory of 1504	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	56
PID 2008 wrote to memory of 1504	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	56
PID 2008 wrote to memory of 1504	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	56
PID 2008 wrote to memory of 1504	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	56
PID 2008 wrote to memory of 848	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	58
PID 2008 wrote to memory of 848	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	58
PID 2008 wrote to memory of 848	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	58
PID 2008 wrote to memory of 848	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	58
PID 2008 wrote to memory of 2332	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	60
PID 2008 wrote to memory of 2332	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	60
PID 2008 wrote to memory of 2332	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	60
PID 2008 wrote to memory of 2332	2008	2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-03-06_412c4146bb0e8a8d594e2445a6b57886_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_412c4146bb0e8a8d594e2445a6b57886_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:2008
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2672
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2592
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2640
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2512
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2924
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2520
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1040
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2392
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:920
- 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:2140
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2804
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2092
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1504
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:848
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2332
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1396

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/2008-2-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/2008-3-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2008-4-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2008-5-0x00000000003C0000-0x00000000003D7000-memory.dmp

Filesize
92KB

Download
memory/2008-7-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2008-14-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/2008-16-0x00000000003C0000-0x00000000003D7000-memory.dmp

Filesize
92KB

Download