gandcrab | 710b80fc6caba56628f2c4cb6b54a30c57501856853c9531fddc74bc8ff358e9

Analysis

max time kernel
146s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2024 04:12

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General

Target

2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
Size

240KB
MD5

de84fc231d1eaba7459c02795411470b
SHA1

20283f3392fc1f0652132692dd7065410c75ef8a
SHA256

710b80fc6caba56628f2c4cb6b54a30c57501856853c9531fddc74bc8ff358e9
SHA512

86672464a0be44d02a1a3999763220f6c1e34160d8f3d9e48183fceb3795aaefc75ed189d5a71e9124b416c2197ef1bfd9f989b693a824821ac51fa6c114c382
SSDEEP

3072:6YHVHd2NwMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpHk:6ycqqDL6oREzZpE

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/1552-0-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab
behavioral2/memory/1552-4-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab
Gandcrab family
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\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\utwftvfelpt = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe"	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.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)	\??\B:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\G:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\O:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\X:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\A:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\I:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\L:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\N:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\P:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\T:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\V:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\H:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\K:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\Q:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\R:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\S:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\U:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\Y:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\Z:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\E:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\M:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\W:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
File opened (read-only)	\??\J:	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1552-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral2/memory/1552-4-0x0000000000400000-0x000000000043C000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 15 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.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	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 1552 wrote to memory of 4144	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	88
PID 1552 wrote to memory of 4144	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	88
PID 1552 wrote to memory of 4144	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	88
PID 1552 wrote to memory of 4784	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	100
PID 1552 wrote to memory of 4784	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	100
PID 1552 wrote to memory of 4784	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	100
PID 1552 wrote to memory of 1344	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	104
PID 1552 wrote to memory of 1344	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	104
PID 1552 wrote to memory of 1344	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	104
PID 1552 wrote to memory of 440	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	111
PID 1552 wrote to memory of 440	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	111
PID 1552 wrote to memory of 440	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	111
PID 1552 wrote to memory of 4368	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	116
PID 1552 wrote to memory of 4368	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	116
PID 1552 wrote to memory of 4368	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	116
PID 1552 wrote to memory of 3012	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	120
PID 1552 wrote to memory of 3012	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	120
PID 1552 wrote to memory of 3012	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	120
PID 1552 wrote to memory of 4380	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	125
PID 1552 wrote to memory of 4380	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	125
PID 1552 wrote to memory of 4380	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	125
PID 1552 wrote to memory of 4840	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	130
PID 1552 wrote to memory of 4840	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	130
PID 1552 wrote to memory of 4840	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	130
PID 1552 wrote to memory of 3312	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	134
PID 1552 wrote to memory of 3312	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	134
PID 1552 wrote to memory of 3312	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	134
PID 1552 wrote to memory of 3616	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	143
PID 1552 wrote to memory of 3616	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	143
PID 1552 wrote to memory of 3616	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	143
PID 1552 wrote to memory of 4652	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	150
PID 1552 wrote to memory of 4652	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	150
PID 1552 wrote to memory of 4652	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	150
PID 1552 wrote to memory of 1304	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	153
PID 1552 wrote to memory of 1304	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	153
PID 1552 wrote to memory of 1304	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	153
PID 1552 wrote to memory of 4792	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	157
PID 1552 wrote to memory of 4792	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	157
PID 1552 wrote to memory of 4792	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	157
PID 1552 wrote to memory of 3832	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	162
PID 1552 wrote to memory of 3832	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	162
PID 1552 wrote to memory of 3832	1552	2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe	162

C:\Users\Admin\AppData\Local\Temp\2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-05_de84fc231d1eaba7459c02795411470b_gandcrab.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1552
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4144
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4784
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1344
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:440
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4368
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4380
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4840
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3312
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3616
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4652
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1304
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4792
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3832

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1552-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1552-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download