gandcrab | 93e27079b4b754959dd45d178fe2e1e27ab87beed471898c8279336c3e79f391

Analysis

max time kernel
147s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 06:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
Size

351KB
MD5

5186db197edcf4cb5cf73e0e71a8d5ea
SHA1

e5f53eb2b733400f82f4f04d1a488c22b5c2713d
SHA256

93e27079b4b754959dd45d178fe2e1e27ab87beed471898c8279336c3e79f391
SHA512

d985910c3aaef37a1f409ea43578b79223336557dbe10fd7a61ed77ac3b38e6cb9cc9429e9044b4c61a081fd7677a59c756f6458231f56b387446d794b2e926a
SSDEEP

3072:ApNMs+Kr1wbWGjl0xjsNNeVKBNVBxKT46xl+wndfIQQOaC3QBn7/hsb2BhGZ1/Nb:ApNMsLWEjsXjBATRpuuwnGD/Nj6a

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2040-3-0x0000000000400000-0x00000000012D6000-memory.dmp	family_gandcrab
behavioral1/memory/2040-4-0x0000000000290000-0x00000000002A7000-memory.dmp	family_gandcrab
behavioral1/memory/2040-11-0x0000000000400000-0x00000000012D6000-memory.dmp	family_gandcrab
behavioral1/memory/2040-14-0x0000000000290000-0x00000000002A7000-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/2040-3-0x0000000000400000-0x00000000012D6000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2040-4-0x0000000000290000-0x00000000002A7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2040-11-0x0000000000400000-0x00000000012D6000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/2040-14-0x0000000000290000-0x00000000002A7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 2 IoCs

resource	yara_rule
behavioral1/memory/2040-4-0x0000000000290000-0x00000000002A7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2040-14-0x0000000000290000-0x00000000002A7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2040-3-0x0000000000400000-0x00000000012D6000-memory.dmp	Gandcrab
behavioral1/memory/2040-4-0x0000000000290000-0x00000000002A7000-memory.dmp	Gandcrab
behavioral1/memory/2040-11-0x0000000000400000-0x00000000012D6000-memory.dmp	Gandcrab
behavioral1/memory/2040-14-0x0000000000290000-0x00000000002A7000-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\rqmomfqrfku = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\tywvrr.exe\""	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_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)	\??\W:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\Z:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\A:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\K:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\S:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\U:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\V:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\E:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\G:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\I:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\T:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\X:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\L:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\M:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\O:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\P:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\Q:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\R:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\Y:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\B:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\H:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\J:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
File opened (read-only)	\??\N:	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_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	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2656	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	28
PID 2040 wrote to memory of 2656	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	28
PID 2040 wrote to memory of 2656	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	28
PID 2040 wrote to memory of 2656	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	28
PID 2040 wrote to memory of 2688	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	30
PID 2040 wrote to memory of 2688	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	30
PID 2040 wrote to memory of 2688	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	30
PID 2040 wrote to memory of 2688	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	30
PID 2040 wrote to memory of 2600	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	32
PID 2040 wrote to memory of 2600	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	32
PID 2040 wrote to memory of 2600	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	32
PID 2040 wrote to memory of 2600	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	32
PID 2040 wrote to memory of 2672	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	34
PID 2040 wrote to memory of 2672	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	34
PID 2040 wrote to memory of 2672	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	34
PID 2040 wrote to memory of 2672	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	34
PID 2040 wrote to memory of 2540	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	36
PID 2040 wrote to memory of 2540	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	36
PID 2040 wrote to memory of 2540	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	36
PID 2040 wrote to memory of 2540	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	36
PID 2040 wrote to memory of 1876	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	38
PID 2040 wrote to memory of 1876	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	38
PID 2040 wrote to memory of 1876	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	38
PID 2040 wrote to memory of 1876	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	38
PID 2040 wrote to memory of 2612	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	40
PID 2040 wrote to memory of 2612	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	40
PID 2040 wrote to memory of 2612	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	40
PID 2040 wrote to memory of 2612	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	40
PID 2040 wrote to memory of 2724	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	42
PID 2040 wrote to memory of 2724	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	42
PID 2040 wrote to memory of 2724	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	42
PID 2040 wrote to memory of 2724	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	42
PID 2040 wrote to memory of 2100	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	46
PID 2040 wrote to memory of 2100	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	46
PID 2040 wrote to memory of 2100	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	46
PID 2040 wrote to memory of 2100	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	46
PID 2040 wrote to memory of 1700	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	48
PID 2040 wrote to memory of 1700	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	48
PID 2040 wrote to memory of 1700	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	48
PID 2040 wrote to memory of 1700	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	48
PID 2040 wrote to memory of 2152	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	50
PID 2040 wrote to memory of 2152	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	50
PID 2040 wrote to memory of 2152	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	50
PID 2040 wrote to memory of 2152	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	50
PID 2040 wrote to memory of 1464	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	52
PID 2040 wrote to memory of 1464	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	52
PID 2040 wrote to memory of 1464	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	52
PID 2040 wrote to memory of 1464	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	52
PID 2040 wrote to memory of 2792	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	54
PID 2040 wrote to memory of 2792	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	54
PID 2040 wrote to memory of 2792	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	54
PID 2040 wrote to memory of 2792	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	54
PID 2040 wrote to memory of 2356	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	56
PID 2040 wrote to memory of 2356	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	56
PID 2040 wrote to memory of 2356	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	56
PID 2040 wrote to memory of 2356	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	56
PID 2040 wrote to memory of 2828	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	58
PID 2040 wrote to memory of 2828	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	58
PID 2040 wrote to memory of 2828	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	58
PID 2040 wrote to memory of 2828	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	58
PID 2040 wrote to memory of 592	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	60
PID 2040 wrote to memory of 592	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	60
PID 2040 wrote to memory of 592	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	60
PID 2040 wrote to memory of 592	2040	2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_5186db197edcf4cb5cf73e0e71a8d5ea_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:2040
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2656
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2688
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2600
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2672
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2540
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1876
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2612
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2724
- 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:1700
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2152
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1464
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2792
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2356
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2828
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:592
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1756
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1160
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1116
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:108
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1552
- 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:3000
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1704

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/2040-1-0x0000000001720000-0x0000000001820000-memory.dmp

Filesize
1024KB

Download
memory/2040-2-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/2040-3-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/2040-4-0x0000000000290000-0x00000000002A7000-memory.dmp

Filesize
92KB

Download
memory/2040-11-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/2040-13-0x0000000001720000-0x0000000001820000-memory.dmp

Filesize
1024KB

Download
memory/2040-14-0x0000000000290000-0x00000000002A7000-memory.dmp

Filesize
92KB

Download