Analysis
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max time kernel
104s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system -
submitted
24/03/2025, 09:05
Behavioral task
behavioral1
Sample
Skibidilockerv2.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Skibidilockerv2.exe
Resource
win10v2004-20250314-en
General
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Target
Skibidilockerv2.exe
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Size
321KB
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MD5
c50efd728b3a484b6c660c8651ece69f
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SHA1
8745db2bd87a04865ddbbf06f612d5ef14cc1e2a
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SHA256
a0e8e63d715768306c63b2e62497f857fc83ca71099b5a3c30719087a6de477f
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SHA512
9d06c092ae1a8900f7d8fa6041142c7105bcda06b2971645eb72594bd38458cd58986563977128a68ace2be2b58de28b361b489a5ee9e7bbfe3b5401940eaaea
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SSDEEP
6144:gr9Sfaqx+fiNg8xG2KKmQv8tU6zZHm6Eo2W7GfF03zK2Ht3gl3ZLk7P14P:BaqUaNg8xGrKmQv8tU6zZHm6EiaFWzpW
Malware Config
Extracted
C:\Users\Admin\Desktop\read_it.txt
chaos
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/3968-1-0x00000000004A0000-0x00000000004F6000-memory.dmp family_chaos behavioral2/files/0x000a0000000240a6-6.dat family_chaos -
Chaos family
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\International\Geo\Nation Skibidilockerv2.exe Key value queried \REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\International\Geo\Nation svchost.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2880 svchost.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 34 IoCs
description ioc Process File opened for modification F:\$RECYCLE.BIN\S-1-5-21-805952410-2104024357-1716932545-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cz4jof21m.jpg" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 3992 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2880 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 3968 Skibidilockerv2.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe 2880 svchost.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3968 Skibidilockerv2.exe Token: SeDebugPrivilege 2880 svchost.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3968 wrote to memory of 2880 3968 Skibidilockerv2.exe 93 PID 3968 wrote to memory of 2880 3968 Skibidilockerv2.exe 93 PID 2880 wrote to memory of 3992 2880 svchost.exe 97 PID 2880 wrote to memory of 3992 2880 svchost.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\Skibidilockerv2.exe"C:\Users\Admin\AppData\Local\Temp\Skibidilockerv2.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3968 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2880 -
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt3⤵
- Opens file in notepad (likely ransom note)
PID:3992
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
321KB
MD5c50efd728b3a484b6c660c8651ece69f
SHA18745db2bd87a04865ddbbf06f612d5ef14cc1e2a
SHA256a0e8e63d715768306c63b2e62497f857fc83ca71099b5a3c30719087a6de477f
SHA5129d06c092ae1a8900f7d8fa6041142c7105bcda06b2971645eb72594bd38458cd58986563977128a68ace2be2b58de28b361b489a5ee9e7bbfe3b5401940eaaea
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740