gandcrab | 1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5

Analysis

max time kernel
143s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2024, 01:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
Size

145KB
MD5

d8029e1465ce1c847c658c71f7711bde
SHA1

4b1a68c52bf2b22c359d6e321177789c1cc622c7
SHA256

1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5
SHA512

4a5fc5264e6b0f9e01d6fa701ed5aeb991ab620b97d3cc0ebd5250841ac71c5f343a01ed35ce6feb6faf5d604e3600c01f87a8cf574469c4dfc6d87e992bfa0b
SSDEEP

3072:eYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:eyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor discovery persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/1244-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/1244-4-0x0000000000400000-0x0000000000428000-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-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\otlcjsdwnbu = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe"	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.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)	\??\V:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\Z:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\B:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\J:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\R:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\U:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\M:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\O:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\T:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\W:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\A:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\E:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\G:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\K:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\X:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\Y:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\H:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\I:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\L:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\S:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\N:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\P:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
File opened (read-only)	\??\Q:	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe

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	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	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.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	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 3120	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	89
PID 1244 wrote to memory of 3120	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	89
PID 1244 wrote to memory of 3120	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	89
PID 1244 wrote to memory of 4368	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	94
PID 1244 wrote to memory of 4368	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	94
PID 1244 wrote to memory of 4368	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	94
PID 1244 wrote to memory of 3952	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	101
PID 1244 wrote to memory of 3952	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	101
PID 1244 wrote to memory of 3952	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	101
PID 1244 wrote to memory of 2852	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	105
PID 1244 wrote to memory of 2852	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	105
PID 1244 wrote to memory of 2852	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	105
PID 1244 wrote to memory of 1916	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	107
PID 1244 wrote to memory of 1916	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	107
PID 1244 wrote to memory of 1916	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	107
PID 1244 wrote to memory of 4832	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	109
PID 1244 wrote to memory of 4832	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	109
PID 1244 wrote to memory of 4832	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	109
PID 1244 wrote to memory of 5024	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	112
PID 1244 wrote to memory of 5024	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	112
PID 1244 wrote to memory of 5024	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	112
PID 1244 wrote to memory of 2136	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	114
PID 1244 wrote to memory of 2136	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	114
PID 1244 wrote to memory of 2136	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	114
PID 1244 wrote to memory of 4348	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	116
PID 1244 wrote to memory of 4348	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	116
PID 1244 wrote to memory of 4348	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	116
PID 1244 wrote to memory of 4820	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	118
PID 1244 wrote to memory of 4820	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	118
PID 1244 wrote to memory of 4820	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	118
PID 1244 wrote to memory of 1612	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	120
PID 1244 wrote to memory of 1612	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	120
PID 1244 wrote to memory of 1612	1244	1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe	120

C:\Users\Admin\AppData\Local\Temp\1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.exe
"C:\Users\Admin\AppData\Local\Temp\1c16b204dd52d4d3fab6113f20a43c29ff74db2746798b88bfd8f4214ac95cc5.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:1244
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3120
- 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:3952
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2852
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1916
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4832
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5024
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4348
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4820
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1612

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4452,i,15336851255456239337,16379811035920490645,262144 --variations-seed-version --mojo-platform-channel-handle=4012 /prefetch:8
1⤵
PID:2760

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

Loading Replay Monitor...

Downloads

memory/1244-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1244-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download