gandcrab | 86bf2aee20958abbf56ac68ef9dfdd656a3a21cb5255b21eb58ce187179b59fe

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/02/2024, 03:59

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General

Target

2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
Size

308KB
MD5

f42590216d9494f2e887d02eb23051d9
SHA1

f4a068ff43f82b9763e1e37bad80b0a96cfe9b6f
SHA256

86bf2aee20958abbf56ac68ef9dfdd656a3a21cb5255b21eb58ce187179b59fe
SHA512

fe766389503762fa0a875df33832162704bf5792d9e9635667d3b17f4345dadeaf7704a728602a576e32f9b05d67e27d5b590f533729235526cb6cce1512f131
SSDEEP

6144:BzL7ShWDLVzVNam6GxI29dqG3KdYAYqTuPZp:PDHNam62ZdKmZmuPH

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2464-2-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2464-4-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab
behavioral1/memory/2464-11-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2464-14-0x0000000000220000-0x0000000000237000-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/2464-2-0x0000000000400000-0x0000000001400000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2464-4-0x0000000000220000-0x0000000000237000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2464-11-0x0000000000400000-0x0000000001400000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2464-14-0x0000000000220000-0x0000000000237000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 2 IoCs

resource	yara_rule
behavioral1/memory/2464-4-0x0000000000220000-0x0000000000237000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2464-14-0x0000000000220000-0x0000000000237000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2464-2-0x0000000000400000-0x0000000001400000-memory.dmp	Gandcrab
behavioral1/memory/2464-4-0x0000000000220000-0x0000000000237000-memory.dmp	Gandcrab
behavioral1/memory/2464-11-0x0000000000400000-0x0000000001400000-memory.dmp	Gandcrab
behavioral1/memory/2464-14-0x0000000000220000-0x0000000000237000-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\fcfzhrqbtbo = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\mtoual.exe\""	2024-02-29_f42590216d9494f2e887d02eb23051d9_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)	\??\U:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-02-29_f42590216d9494f2e887d02eb23051d9_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	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 3000	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	28
PID 2464 wrote to memory of 3000	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	28
PID 2464 wrote to memory of 3000	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	28
PID 2464 wrote to memory of 3000	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	28
PID 2464 wrote to memory of 2652	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	30
PID 2464 wrote to memory of 2652	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	30
PID 2464 wrote to memory of 2652	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	30
PID 2464 wrote to memory of 2652	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	30
PID 2464 wrote to memory of 2384	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	32
PID 2464 wrote to memory of 2384	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	32
PID 2464 wrote to memory of 2384	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	32
PID 2464 wrote to memory of 2384	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	32
PID 2464 wrote to memory of 2620	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	34
PID 2464 wrote to memory of 2620	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	34
PID 2464 wrote to memory of 2620	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	34
PID 2464 wrote to memory of 2620	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	34
PID 2464 wrote to memory of 2376	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	36
PID 2464 wrote to memory of 2376	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	36
PID 2464 wrote to memory of 2376	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	36
PID 2464 wrote to memory of 2376	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	36
PID 2464 wrote to memory of 792	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	40
PID 2464 wrote to memory of 792	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	40
PID 2464 wrote to memory of 792	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	40
PID 2464 wrote to memory of 792	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	40
PID 2464 wrote to memory of 888	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	42
PID 2464 wrote to memory of 888	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	42
PID 2464 wrote to memory of 888	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	42
PID 2464 wrote to memory of 888	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	42
PID 2464 wrote to memory of 992	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	44
PID 2464 wrote to memory of 992	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	44
PID 2464 wrote to memory of 992	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	44
PID 2464 wrote to memory of 992	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	44
PID 2464 wrote to memory of 2100	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	46
PID 2464 wrote to memory of 2100	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	46
PID 2464 wrote to memory of 2100	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	46
PID 2464 wrote to memory of 2100	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	46
PID 2464 wrote to memory of 1476	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	48
PID 2464 wrote to memory of 1476	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	48
PID 2464 wrote to memory of 1476	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	48
PID 2464 wrote to memory of 1476	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	48
PID 2464 wrote to memory of 2712	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	50
PID 2464 wrote to memory of 2712	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	50
PID 2464 wrote to memory of 2712	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	50
PID 2464 wrote to memory of 2712	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	50
PID 2464 wrote to memory of 2632	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	52
PID 2464 wrote to memory of 2632	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	52
PID 2464 wrote to memory of 2632	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	52
PID 2464 wrote to memory of 2632	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	52
PID 2464 wrote to memory of 1788	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	54
PID 2464 wrote to memory of 1788	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	54
PID 2464 wrote to memory of 1788	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	54
PID 2464 wrote to memory of 1788	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	54
PID 2464 wrote to memory of 616	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	56
PID 2464 wrote to memory of 616	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	56
PID 2464 wrote to memory of 616	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	56
PID 2464 wrote to memory of 616	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	56
PID 2464 wrote to memory of 1968	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	58
PID 2464 wrote to memory of 1968	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	58
PID 2464 wrote to memory of 1968	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	58
PID 2464 wrote to memory of 1968	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	58
PID 2464 wrote to memory of 1876	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	60
PID 2464 wrote to memory of 1876	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	60
PID 2464 wrote to memory of 1876	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	60
PID 2464 wrote to memory of 1876	2464	2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-02-29_f42590216d9494f2e887d02eb23051d9_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_f42590216d9494f2e887d02eb23051d9_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:2464
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:3000
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2652
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2384
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2620
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2376
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:792
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:888
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:992
- 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:1476
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2712
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2632
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1788
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:616
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1968
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1876
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1864
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1052
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2136
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1704
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1576
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:924
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2952
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1860

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/2464-1-0x000000000AB80000-0x000000000AC80000-memory.dmp

Filesize
1024KB

Download
memory/2464-2-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2464-4-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2464-11-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2464-13-0x000000000AB80000-0x000000000AC80000-memory.dmp

Filesize
1024KB

Download
memory/2464-14-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download