gandcrab | ace0945f3cc02d75302ff9746353ba56ab06530b6ca45a77c4b8116eb111c5a1

Analysis

max time kernel
146s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 19:41

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General

Target
2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
Size 250KB
Sample240327-yd9fjsae68
SHA256 ace0945f3cc02d75302ff9746353ba56ab06530b6ca45a77c4b8116eb111c5a1
MD5 e00a23d805ebb7aa55110c9a60e18156
SHA1 ec4a1b1acf4f940e2aa311cd75c08ffa68aaff9c
SHA512 b4c13f930da966642897e3c20c4be04731d417331f7f14db677cf1b6811477eeb2223fc27f28b4ad8f5e103ec21f740d925bdc97619f99df3a56a9920f3b4e07
SSDEEP 3072:f/yK5d0Gj0+nY3uEBLvBNfdUR2/qFnB8o2+vU3WuvIBuj00nReaXkuSQ7cdOd3:f/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/2756-4-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/2756-6-0x0000000000270000-0x0000000000287000-memory.dmp	family_gandcrab
behavioral1/memory/2756-13-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/2756-16-0x0000000000270000-0x0000000000287000-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/2756-4-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2756-6-0x0000000000270000-0x0000000000287000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2756-13-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2756-16-0x0000000000270000-0x0000000000287000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 4 IoCs

resource	yara_rule
behavioral1/memory/2756-4-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2756-6-0x0000000000270000-0x0000000000287000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2756-13-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2756-16-0x0000000000270000-0x0000000000287000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2756-4-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/2756-6-0x0000000000270000-0x0000000000287000-memory.dmp	Gandcrab
behavioral1/memory/2756-13-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/2756-16-0x0000000000270000-0x0000000000287000-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\bpeqvxoukeq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\wefihr.exe\""	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_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:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_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	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2524	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	28
PID 2756 wrote to memory of 2524	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	28
PID 2756 wrote to memory of 2524	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	28
PID 2756 wrote to memory of 2524	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	28
PID 2756 wrote to memory of 2444	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	30
PID 2756 wrote to memory of 2444	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	30
PID 2756 wrote to memory of 2444	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	30
PID 2756 wrote to memory of 2444	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	30
PID 2756 wrote to memory of 2528	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	32
PID 2756 wrote to memory of 2528	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	32
PID 2756 wrote to memory of 2528	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	32
PID 2756 wrote to memory of 2528	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	32
PID 2756 wrote to memory of 2364	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	34
PID 2756 wrote to memory of 2364	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	34
PID 2756 wrote to memory of 2364	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	34
PID 2756 wrote to memory of 2364	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	34
PID 2756 wrote to memory of 1108	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	38
PID 2756 wrote to memory of 1108	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	38
PID 2756 wrote to memory of 1108	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	38
PID 2756 wrote to memory of 1108	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	38
PID 2756 wrote to memory of 1448	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	40
PID 2756 wrote to memory of 1448	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	40
PID 2756 wrote to memory of 1448	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	40
PID 2756 wrote to memory of 1448	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	40
PID 2756 wrote to memory of 2820	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	42
PID 2756 wrote to memory of 2820	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	42
PID 2756 wrote to memory of 2820	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	42
PID 2756 wrote to memory of 2820	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	42
PID 2756 wrote to memory of 2512	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	44
PID 2756 wrote to memory of 2512	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	44
PID 2756 wrote to memory of 2512	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	44
PID 2756 wrote to memory of 2512	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	44
PID 2756 wrote to memory of 2244	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	46
PID 2756 wrote to memory of 2244	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	46
PID 2756 wrote to memory of 2244	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	46
PID 2756 wrote to memory of 2244	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	46
PID 2756 wrote to memory of 2476	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	48
PID 2756 wrote to memory of 2476	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	48
PID 2756 wrote to memory of 2476	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	48
PID 2756 wrote to memory of 2476	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	48
PID 2756 wrote to memory of 1972	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	50
PID 2756 wrote to memory of 1972	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	50
PID 2756 wrote to memory of 1972	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	50
PID 2756 wrote to memory of 1972	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	50
PID 2756 wrote to memory of 1668	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	52
PID 2756 wrote to memory of 1668	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	52
PID 2756 wrote to memory of 1668	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	52
PID 2756 wrote to memory of 1668	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	52
PID 2756 wrote to memory of 1008	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	54
PID 2756 wrote to memory of 1008	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	54
PID 2756 wrote to memory of 1008	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	54
PID 2756 wrote to memory of 1008	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	54
PID 2756 wrote to memory of 2316	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	56
PID 2756 wrote to memory of 2316	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	56
PID 2756 wrote to memory of 2316	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	56
PID 2756 wrote to memory of 2316	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	56
PID 2756 wrote to memory of 2884	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	58
PID 2756 wrote to memory of 2884	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	58
PID 2756 wrote to memory of 2884	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	58
PID 2756 wrote to memory of 2884	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	58
PID 2756 wrote to memory of 2372	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	60
PID 2756 wrote to memory of 2372	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	60
PID 2756 wrote to memory of 2372	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	60
PID 2756 wrote to memory of 2372	2756	2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-03-27_e00a23d805ebb7aa55110c9a60e18156_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_e00a23d805ebb7aa55110c9a60e18156_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:2756
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2524
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2444
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2528
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2364
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1108
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1448
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2820
- 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:2244
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2476
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1972
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1668
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1008
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2316
- 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:2372
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:3016
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1544
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:952
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:932
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2188
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:3020
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2808

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/2756-2-0x00000000005A0000-0x00000000006A0000-memory.dmp

Download

memory/2756-3-0x0000000000400000-0x0000000000444000-memory.dmp

Download

memory/2756-4-0x0000000000400000-0x0000000000444000-memory.dmp

Download

memory/2756-6-0x0000000000270000-0x0000000000287000-memory.dmp

Download

memory/2756-13-0x0000000000400000-0x0000000000444000-memory.dmp

Download

memory/2756-14-0x00000000005A0000-0x00000000006A0000-memory.dmp

Download

memory/2756-16-0x0000000000270000-0x0000000000287000-memory.dmp

Download