Analysis
-
max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
20/10/2022, 22:36
Static task
static1
Behavioral task
behavioral1
Sample
c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
-
Target
c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe
-
Size
208KB
-
MD5
648e60e43530b4ac802c98a6a0688a40
-
SHA1
a2a8d6e2fe38cae0f2fc4f69c0233c14892182a0
-
SHA256
c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773
-
SHA512
374303f095df4e54f6ab594d5d4cf9f14cb5bd2b2b576839aaeb8a792d65a96dea47b772824a0d1e7f6f03ba6f62818505b0b025615ba6c631feb50a5650a48d
-
SSDEEP
6144:tRiy9Inu5W98TFK/fObT/bGiA14DFsqmVrWpMY9FAN:tosn5W98TFK/fObT/bGidIrW39FAN
Score
10/10
Malware Config
Signatures
-
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ylwik.exe -
Executes dropped EXE 1 IoCs
pid Process 3716 ylwik.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe -
Adds Run key to start application 2 TTPs 55 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /T" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /o" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /M" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /F" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /B" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /b" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /d" ylwik.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /p" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /C" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /f" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /K" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /W" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /x" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /L" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /g" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /y" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /s" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /P" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /t" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /A" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /z" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /h" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /Z" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /S" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /H" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /e" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /Q" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /n" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /G" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /E" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /q" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /J" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /D" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /w" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /r" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /l" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /V" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /u" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /Y" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /I" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /R" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /O" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /m" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /N" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /j" ylwik.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /X" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /k" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /M" c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /a" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /i" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /c" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /v" ylwik.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylwik = "C:\\Users\\Admin\\ylwik.exe /U" ylwik.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3608 c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe 3608 c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe 3716 ylwik.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3608 c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe 3716 ylwik.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3608 wrote to memory of 3716 3608 c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe 87 PID 3608 wrote to memory of 3716 3608 c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe 87 PID 3608 wrote to memory of 3716 3608 c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe"C:\Users\Admin\AppData\Local\Temp\c65306796d1e62a4a64e5d7de798b676220ee298aea8f873b9b8a2d8ff454773.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3608 -
C:\Users\Admin\ylwik.exe"C:\Users\Admin\ylwik.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3716
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
208KB
MD5ffc754de24d7a24e63c62e455e77b410
SHA1fe52185c2a166d452762946a14252049ee4343c4
SHA2563df079ad075325db2946af3372f88cc4f37d1723c5287357d36679964b5ff60a
SHA5125e8de52db50efb2f1ec0d60bb7576cc19e556da73c61775c63e5cb2ab1c7431ac398ff2b77823741bcb07403c3a778ef7a6eae1f33efbea3a9413f463cccd7f0
-
Filesize
208KB
MD5ffc754de24d7a24e63c62e455e77b410
SHA1fe52185c2a166d452762946a14252049ee4343c4
SHA2563df079ad075325db2946af3372f88cc4f37d1723c5287357d36679964b5ff60a
SHA5125e8de52db50efb2f1ec0d60bb7576cc19e556da73c61775c63e5cb2ab1c7431ac398ff2b77823741bcb07403c3a778ef7a6eae1f33efbea3a9413f463cccd7f0