f6a83e6ed8bf92b8ff4da0aba72fe354199ec79a99008b34800e4cfdb92d3a67

Analysis

max time kernel
271s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/11/2024, 03:41

Target
_003E0000.exe.vir.exe
Size 116KB
Sample241122-d88saazlhm
SHA256 878304de96556ed340f190a9d8b5650dc71512eed4210676560fc41e7ac4857c
MD5 f57d188c4667fab46208396af20badd2
SHA1 367ea268c494d17672ef371adebef0f505c1a804
SHA512 157615951ccf90c69aaa4e4e1e1f664ffcb6c5817371143ac5bc2dfac04185e57981d50194ad4a1784c29f16211b6a18e9fa085721d05e29ba63377e40dc41a2
SSDEEP 3072:SsB0ura/QOVLLkeyYP1RNDZyuubclhZUnr:Sef7wkey21flyu8+i
MD5 SHA1 SHA512 SSDEEP

Score

9^/10

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c12c0c1.exe	explorer.exe

Adds Run key to start application 2 TTPs 4 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\c12c0c = "C:\\c12c0c1\\c12c0c1.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*12c0c = "C:\\c12c0c1\\c12c0c1.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\c12c0c1 = "C:\\Users\\Admin\\AppData\\Roaming\\c12c0c1.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*12c0c1 = "C:\\Users\\Admin\\AppData\\Roaming\\c12c0c1.exe"	explorer.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

System Language Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	_003E0000.exe.vir.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vssadmin.exe

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

File Deletion

Inhibit System Recovery

Direct Volume Access

pid	Process
2964	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2968	_003E0000.exe.vir.exe
2848	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2848	2968	_003E0000.exe.vir.exe	30
PID 2968 wrote to memory of 2848	2968	_003E0000.exe.vir.exe	30
PID 2968 wrote to memory of 2848	2968	_003E0000.exe.vir.exe	30
PID 2968 wrote to memory of 2848	2968	_003E0000.exe.vir.exe	30
PID 2848 wrote to memory of 2576	2848	explorer.exe	31
PID 2848 wrote to memory of 2576	2848	explorer.exe	31
PID 2848 wrote to memory of 2576	2848	explorer.exe	31
PID 2848 wrote to memory of 2576	2848	explorer.exe	31
PID 2848 wrote to memory of 2964	2848	explorer.exe	32
PID 2848 wrote to memory of 2964	2848	explorer.exe	32
PID 2848 wrote to memory of 2964	2848	explorer.exe	32
PID 2848 wrote to memory of 2964	2848	explorer.exe	32

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware