gandcrab | 1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500

Analysis

max time kernel
119s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2024 19:57

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General

Target

1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
Size

240KB
MD5

06bb3e26f98fd902f3f023c5bedb1850
SHA1

bacd24ac09f24a8102e78e56bc1b8c33b103d6a5
SHA256

1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500
SHA512

37441a65c36916ef40b8a2e79bf935ee9abd8a08fef43b3dbdd5a404c0d78297edbcfe33eb40624de306a155a1be16b1c729c71f30f1324131cffc3c2cd987d2
SSDEEP

3072:LYHVHd2NwMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpHk:LycqqDL6oREzZpE

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/1884-0-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab
behavioral2/memory/1884-4-0x0000000000400000-0x000000000043C000-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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\kopsvnhtrml = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe"	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.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:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\I:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\O:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\X:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\A:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\R:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\B:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\G:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\J:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\L:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\P:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\S:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\U:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\V:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\E:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\K:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\M:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\N:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\Q:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\T:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\W:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\Y:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
File opened (read-only)	\??\Z:	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1884-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral2/memory/1884-4-0x0000000000400000-0x000000000043C000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 12 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	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	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 1100	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	85
PID 1884 wrote to memory of 1100	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	85
PID 1884 wrote to memory of 1100	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	85
PID 1884 wrote to memory of 2244	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	100
PID 1884 wrote to memory of 2244	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	100
PID 1884 wrote to memory of 2244	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	100
PID 1884 wrote to memory of 2904	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	103
PID 1884 wrote to memory of 2904	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	103
PID 1884 wrote to memory of 2904	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	103
PID 1884 wrote to memory of 4032	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	108
PID 1884 wrote to memory of 4032	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	108
PID 1884 wrote to memory of 4032	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	108
PID 1884 wrote to memory of 2024	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	113
PID 1884 wrote to memory of 2024	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	113
PID 1884 wrote to memory of 2024	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	113
PID 1884 wrote to memory of 4108	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	117
PID 1884 wrote to memory of 4108	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	117
PID 1884 wrote to memory of 4108	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	117
PID 1884 wrote to memory of 4996	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	121
PID 1884 wrote to memory of 4996	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	121
PID 1884 wrote to memory of 4996	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	121
PID 1884 wrote to memory of 4352	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	125
PID 1884 wrote to memory of 4352	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	125
PID 1884 wrote to memory of 4352	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	125
PID 1884 wrote to memory of 5092	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	129
PID 1884 wrote to memory of 5092	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	129
PID 1884 wrote to memory of 5092	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	129
PID 1884 wrote to memory of 4836	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	133
PID 1884 wrote to memory of 4836	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	133
PID 1884 wrote to memory of 4836	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	133
PID 1884 wrote to memory of 3568	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	137
PID 1884 wrote to memory of 3568	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	137
PID 1884 wrote to memory of 3568	1884	1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe	137

C:\Users\Admin\AppData\Local\Temp\1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.exe
"C:\Users\Admin\AppData\Local\Temp\1be6d76ab1f5d4fa2c72a2df61ac1ba2dd99ae5911b9eb25e599cba8e9ec1500N.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:1884
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1100
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2904
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4032
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2024
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4108
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4996
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4352
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5092
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4836
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3568

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/1884-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1884-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download