e1453edb74729a33c8219bcf018f1718d5461294c989b60bc090d6bc00451451

Reason

Machine shutdown

General

Target

2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
Size

70KB
MD5

30d22f047fc4f1f9f287f7cfb34a5a74
SHA1

611a127953b7898cb24d6e4b981fefd48a03e905
SHA256

e1453edb74729a33c8219bcf018f1718d5461294c989b60bc090d6bc00451451
SHA512

d91243d664f88dc22dd00e6383112aacf662b24230117e68dc166f43d0409cc4e118681b1e35ff5931d4ab384a738722df0933409a5087a5b367d1d92d1b8864
SSDEEP

1536:XZZZZZZZZZZZZpXzzzzzzzzzzzzADypczUk+lkZJngWMqqU+2bbbAV2/S2OvvdZl:+d5BJHMqqDL2/Ovvdr

Score

6^/10

discovery persistence

Malware Config

Signatures

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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ajhyvxvddkr = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe"	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_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:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\V:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\Y:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\O:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\Q:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\R:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\S:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\A:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\H:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\I:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\L:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\T:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\Z:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\U:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\B:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\J:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\K:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\M:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\X:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\E:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\G:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\P:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
File opened (read-only)	\??\W:	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.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\ProcessorNameString	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "218"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2772	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
2772	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
2772	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
2772	2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4852	shutdown.exe
Token: SeRemoteShutdownPrivilege	4852	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1060	LogonUI.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 732 wrote to memory of 4852	732	cmd.exe	95
PID 732 wrote to memory of 4852	732	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_30d22f047fc4f1f9f287f7cfb34a5a74_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
PID:2772

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:732
- C:\Windows\system32\shutdown.exe
  shutdown /s /t 1
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4852

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa399c055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1060