gandcrab | fa958a7f55b55824bef25875759ef54c0a969e83d894ff8dd3084fb103942b2e

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-10-2024 18:47

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General

Target

2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
Size

145KB
MD5

c69f780787e3b2aae6c136844e17dd4b
SHA1

73b3f5de143c82106db4b7aa0c34c4822c7f09a7
SHA256

fa958a7f55b55824bef25875759ef54c0a969e83d894ff8dd3084fb103942b2e
SHA512

ca45d7ca508d0727a1b433823e0a39664ca836ef5bac2b7cfac7d27c1d4527da6eb7f763065e09f023b87b77ceacaa2345d4bc34f25becc9cbfa902aefde0b59
SSDEEP

3072:BYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:ByOqqDL64vdGREz

Score

10^/10

gandcrab backdoor discovery persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/4908-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/4908-4-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor 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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\rlsjangrafw = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe"	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_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)	\??\N:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\P:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\V:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\X:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\Z:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\E:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\H:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\K:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\S:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\L:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\W:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\Y:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\Q:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\A:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\B:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\G:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\I:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\J:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\M:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\O:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\R:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\T:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
File opened (read-only)	\??\U:	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe

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	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_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

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	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 464	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	87
PID 4908 wrote to memory of 464	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	87
PID 4908 wrote to memory of 464	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	87
PID 4908 wrote to memory of 2912	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	93
PID 4908 wrote to memory of 2912	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	93
PID 4908 wrote to memory of 2912	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	93
PID 4908 wrote to memory of 908	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	98
PID 4908 wrote to memory of 908	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	98
PID 4908 wrote to memory of 908	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	98
PID 4908 wrote to memory of 1016	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	103
PID 4908 wrote to memory of 1016	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	103
PID 4908 wrote to memory of 1016	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	103
PID 4908 wrote to memory of 3044	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	106
PID 4908 wrote to memory of 3044	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	106
PID 4908 wrote to memory of 3044	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	106
PID 4908 wrote to memory of 4956	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	108
PID 4908 wrote to memory of 4956	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	108
PID 4908 wrote to memory of 4956	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	108
PID 4908 wrote to memory of 4284	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	111
PID 4908 wrote to memory of 4284	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	111
PID 4908 wrote to memory of 4284	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	111
PID 4908 wrote to memory of 4748	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	113
PID 4908 wrote to memory of 4748	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	113
PID 4908 wrote to memory of 4748	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	113
PID 4908 wrote to memory of 1456	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	115
PID 4908 wrote to memory of 1456	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	115
PID 4908 wrote to memory of 1456	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	115
PID 4908 wrote to memory of 3140	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	123
PID 4908 wrote to memory of 3140	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	123
PID 4908 wrote to memory of 3140	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	123
PID 4908 wrote to memory of 3756	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	125
PID 4908 wrote to memory of 3756	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	125
PID 4908 wrote to memory of 3756	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	125
PID 4908 wrote to memory of 2176	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	127
PID 4908 wrote to memory of 2176	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	127
PID 4908 wrote to memory of 2176	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	127
PID 4908 wrote to memory of 1352	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	129
PID 4908 wrote to memory of 1352	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	129
PID 4908 wrote to memory of 1352	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	129
PID 4908 wrote to memory of 2024	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	134
PID 4908 wrote to memory of 2024	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	134
PID 4908 wrote to memory of 2024	4908	2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe	134

C:\Users\Admin\AppData\Local\Temp\2024-10-18_c69f780787e3b2aae6c136844e17dd4b_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-18_c69f780787e3b2aae6c136844e17dd4b_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:4908
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:464
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:908
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1016
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3044
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4956
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4284
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4748
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1456
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3140
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3756
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2176
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1352
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2024

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/4908-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4908-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download