gandcrab | 3ae9abda64f63cc22843f5df36cec35b285c4c319c562c5d8a745edd41db7bbf

Analysis

max time kernel
145s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13/03/2024, 00:31

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General

Target

2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
Size

351KB
MD5

5c64b0e1a1900f3b788106d1e24219ab
SHA1

aca25dfb45706179892fe24f2ac07eb33d32aa73
SHA256

3ae9abda64f63cc22843f5df36cec35b285c4c319c562c5d8a745edd41db7bbf
SHA512

7542565c3093863846941644fdeedb1dc637b7a89c4b6713a9e45d71ccc701f6bf0b7061b8e296a10819e7865ee545bc622875b2d8842e96acd03619552e8619
SSDEEP

3072:GpNMs+Kr1wbWGjl0xjsNNeVKBNVBxKT46xl+wndfIQQOaC3QBn7/hsb2BhGZ1/Nb:GpNMsLWEjsXjBATRpuuwnGD/Nj6a

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2068-4-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab
behavioral1/memory/2068-3-0x0000000000400000-0x00000000012D6000-memory.dmp	family_gandcrab
behavioral1/memory/2068-11-0x0000000000400000-0x00000000012D6000-memory.dmp	family_gandcrab
behavioral1/memory/2068-14-0x0000000000220000-0x0000000000237000-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/2068-4-0x0000000000220000-0x0000000000237000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2068-3-0x0000000000400000-0x00000000012D6000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2068-11-0x0000000000400000-0x00000000012D6000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2068-14-0x0000000000220000-0x0000000000237000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 2 IoCs

resource	yara_rule
behavioral1/memory/2068-4-0x0000000000220000-0x0000000000237000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2068-14-0x0000000000220000-0x0000000000237000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2068-4-0x0000000000220000-0x0000000000237000-memory.dmp	Gandcrab
behavioral1/memory/2068-3-0x0000000000400000-0x00000000012D6000-memory.dmp	Gandcrab
behavioral1/memory/2068-11-0x0000000000400000-0x00000000012D6000-memory.dmp	Gandcrab
behavioral1/memory/2068-14-0x0000000000220000-0x0000000000237000-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\eqvuospqcuj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\ejiahz.exe\""	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_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)	\??\Y:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\B:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\E:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\H:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\I:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\P:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\T:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\G:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\L:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\V:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\X:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\A:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\J:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\M:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\N:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\R:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\U:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\K:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\O:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\Q:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\S:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\W:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
File opened (read-only)	\??\Z:	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2672	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	28
PID 2068 wrote to memory of 2672	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	28
PID 2068 wrote to memory of 2672	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	28
PID 2068 wrote to memory of 2672	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	28
PID 2068 wrote to memory of 2880	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	30
PID 2068 wrote to memory of 2880	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	30
PID 2068 wrote to memory of 2880	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	30
PID 2068 wrote to memory of 2880	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	30
PID 2068 wrote to memory of 2604	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	32
PID 2068 wrote to memory of 2604	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	32
PID 2068 wrote to memory of 2604	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	32
PID 2068 wrote to memory of 2604	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	32
PID 2068 wrote to memory of 2456	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	34
PID 2068 wrote to memory of 2456	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	34
PID 2068 wrote to memory of 2456	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	34
PID 2068 wrote to memory of 2456	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	34
PID 2068 wrote to memory of 588	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	38
PID 2068 wrote to memory of 588	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	38
PID 2068 wrote to memory of 588	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	38
PID 2068 wrote to memory of 588	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	38
PID 2068 wrote to memory of 2816	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	40
PID 2068 wrote to memory of 2816	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	40
PID 2068 wrote to memory of 2816	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	40
PID 2068 wrote to memory of 2816	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	40
PID 2068 wrote to memory of 2956	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	42
PID 2068 wrote to memory of 2956	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	42
PID 2068 wrote to memory of 2956	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	42
PID 2068 wrote to memory of 2956	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	42
PID 2068 wrote to memory of 2760	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	44
PID 2068 wrote to memory of 2760	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	44
PID 2068 wrote to memory of 2760	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	44
PID 2068 wrote to memory of 2760	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	44
PID 2068 wrote to memory of 2808	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	46
PID 2068 wrote to memory of 2808	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	46
PID 2068 wrote to memory of 2808	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	46
PID 2068 wrote to memory of 2808	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	46
PID 2068 wrote to memory of 2708	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	48
PID 2068 wrote to memory of 2708	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	48
PID 2068 wrote to memory of 2708	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	48
PID 2068 wrote to memory of 2708	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	48
PID 2068 wrote to memory of 1488	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	50
PID 2068 wrote to memory of 1488	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	50
PID 2068 wrote to memory of 1488	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	50
PID 2068 wrote to memory of 1488	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	50
PID 2068 wrote to memory of 1860	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	52
PID 2068 wrote to memory of 1860	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	52
PID 2068 wrote to memory of 1860	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	52
PID 2068 wrote to memory of 1860	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	52
PID 2068 wrote to memory of 1788	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	54
PID 2068 wrote to memory of 1788	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	54
PID 2068 wrote to memory of 1788	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	54
PID 2068 wrote to memory of 1788	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	54
PID 2068 wrote to memory of 1496	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	56
PID 2068 wrote to memory of 1496	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	56
PID 2068 wrote to memory of 1496	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	56
PID 2068 wrote to memory of 1496	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	56
PID 2068 wrote to memory of 2900	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	58
PID 2068 wrote to memory of 2900	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	58
PID 2068 wrote to memory of 2900	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	58
PID 2068 wrote to memory of 2900	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	58
PID 2068 wrote to memory of 2000	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	60
PID 2068 wrote to memory of 2000	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	60
PID 2068 wrote to memory of 2000	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	60
PID 2068 wrote to memory of 2000	2068	2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_5c64b0e1a1900f3b788106d1e24219ab_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:2068
- 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:2880
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2604
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2456
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:588
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2816
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2956
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2760
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2808
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2708
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1488
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1860
- 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:1496
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2900
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2000
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1516
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1048
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:964
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1532
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2184

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/2068-1-0x0000000001440000-0x0000000001540000-memory.dmp

Filesize
1024KB

Download
memory/2068-2-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/2068-4-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2068-3-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/2068-11-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/2068-12-0x0000000001440000-0x0000000001540000-memory.dmp

Filesize
1024KB

Download
memory/2068-14-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download