Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240730-en - resource tags
arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system - submitted
01/08/2024, 05:59
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Wallpaperskibidi.exe
Resource
win7-20240708-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
Wallpaperskibidi.exe
Resource
win10v2004-20240730-en
windows10-2004-x64
16 signatures
150 seconds
General
- Target Wallpaperskibidi.exe
- Size 65.1MB
- Sample240801-gpzxtazcpe
- SHA256 fe1d1c4f5db5070a41eb07fc2c3a12c07c2c715951ff248fac78908c0d1b02e3
- MD5 39c019099197de0361e594bf85d5e99e
- SHA1 f8240293f7b3faa99c3855f07b65637b7056c825
- SHA512 80b94ca85ec733b6e5919ca5d2a87963b99beb48969dbe479684fd7713b71a30482dd2929d7c991c8c5d252a5b27a27169715d1fd7ca67bd1226bb42532a09dc
- SSDEEP 393216:QkDkpjhB2dhR9JqPrtgNkyIOOR+cb19ZRIIYl6xX9ZzqtCQshHD26a14aBYWlx9u:QPpObAjhOOAcbfWbkQshHSYajxMF
- MD5 SHA1 SHA512 SSDEEP
Score
8/10
Malware Config
Signatures
- Possible privilege escalation attempt 2 IoCs
pid Process 1568 takeown.exe 5036 icacls.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-1-5-21-3881032017-2947584075-2120384563-1000\Control Panel\International\Geo\Nation Wallpaperskibidi.exe - Modifies file permissions 1 TTPs 2 IoCs
pid Process 5036 icacls.exe 1568 takeown.exe - File and Directory Permissions Modification: Windows File and Directory Permissions Modification 1 TTPs
- Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\System32\boot\resources\bootres.dll Wallpaperskibidi.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\wallpaper.jpg" Wallpaperskibidi.exe - Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Debug\WIA\wiatrace.log mspaint.exe - Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName taskmgr.exe - Modifies registry class 9 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0 taskmgr.exe Key created \REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000_Classes\Local Settings OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000_Classes\Local Settings taskmgr.exe Key created \REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell taskmgr.exe Set value (data) \REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 0202020202020202 taskmgr.exe Key created \REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU taskmgr.exe Key created \REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1 taskmgr.exe Set value (data) \REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 0100000000000000ffffffff taskmgr.exe Key created \REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0 taskmgr.exe - Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1420 NOTEPAD.EXE - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 3628 mspaint.exe 3628 mspaint.exe - Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeTakeOwnershipPrivilege 1568 takeown.exe Token: SeDebugPrivilege 4628 taskmgr.exe Token: SeSystemProfilePrivilege 4628 taskmgr.exe Token: SeCreateGlobalPrivilege 4628 taskmgr.exe Token: SeDebugPrivilege 116 taskmgr.exe Token: SeSystemProfilePrivilege 116 taskmgr.exe Token: SeCreateGlobalPrivilege 116 taskmgr.exe Token: 33 4628 taskmgr.exe Token: SeIncBasePriorityPrivilege 4628 taskmgr.exe Token: 33 116 taskmgr.exe Token: SeIncBasePriorityPrivilege 116 taskmgr.exe - Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe - Suspicious use of SendNotifyMessage 64 IoCs
pid Process 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 4628 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe 116 taskmgr.exe - Suspicious use of SetWindowsHookEx 17 IoCs
pid Process 4564 OpenWith.exe 4564 OpenWith.exe 4564 OpenWith.exe 4564 OpenWith.exe 4564 OpenWith.exe 4564 OpenWith.exe 4564 OpenWith.exe 4564 OpenWith.exe 4564 OpenWith.exe 4564 OpenWith.exe 4564 OpenWith.exe 4564 OpenWith.exe 4564 OpenWith.exe 3628 mspaint.exe 3628 mspaint.exe 3628 mspaint.exe 3628 mspaint.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2124 wrote to memory of 448 2124 Wallpaperskibidi.exe 87 PID 2124 wrote to memory of 448 2124 Wallpaperskibidi.exe 87 PID 448 wrote to memory of 1568 448 cmd.exe 90 PID 448 wrote to memory of 1568 448 cmd.exe 90 PID 2124 wrote to memory of 4108 2124 Wallpaperskibidi.exe 91 PID 2124 wrote to memory of 4108 2124 Wallpaperskibidi.exe 91 PID 4108 wrote to memory of 5036 4108 cmd.exe 93 PID 4108 wrote to memory of 5036 4108 cmd.exe 93 PID 4564 wrote to memory of 1420 4564 OpenWith.exe 101 PID 4564 wrote to memory of 1420 4564 OpenWith.exe 101 PID 4628 wrote to memory of 116 4628 taskmgr.exe 103 PID 4628 wrote to memory of 116 4628 taskmgr.exe 103
Processes
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C:\Users\Admin\AppData\Local\Temp\Wallpaperskibidi.exe"C:\Users\Admin\AppData\Local\Temp\Wallpaperskibidi.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Suspicious use of WriteProcessMemory
PID:2124 -
C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c takeown /f "C:\Windows\System32\boot\resources\bootres.dll" /a2⤵
- Suspicious use of WriteProcessMemory
PID:448 -
C:\Windows\system32\takeown.exetakeown /f "C:\Windows\System32\boot\resources\bootres.dll" /a3⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
PID:1568
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c icacls "C:\Windows\System32\boot\resources\bootres.dll" /grant administrators:F2⤵
- Suspicious use of WriteProcessMemory
PID:4108 -
C:\Windows\system32\icacls.exeicacls "C:\Windows\System32\boot\resources\bootres.dll" /grant administrators:F3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:5036
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:1552
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4564 -
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Windows\Boot\Resources\bootres.dll2⤵
- Opens file in notepad (likely ransom note)
PID:1420
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /01⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4628 -
C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /12⤵
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:116
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C:\Windows\system32\mspaint.exe"C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\newbootimage.bmp"1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3628
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService1⤵PID:4844
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C:\Users\Admin\AppData\Local\Temp\Wallpaperskibidi.exe"C:\Users\Admin\AppData\Local\Temp\Wallpaperskibidi.exe"1⤵PID:728
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\D3DSCache\e8010882af4f153f\F4EB2D6C-ED2B-4BDD-AD9D-F913287E6768.idx
- Size 64KB
- SHA256 b09f68b61d9ff5a7c7c8b10eee9447d4813ee0e866346e629e788cd4adecb66a
- MD5 d2fb266b97caff2086bf0fa74eddb6b2
- SHA1 2f0061ce9c51b5b4fbab76b37fc6a540be7f805d
- SHA512 c3ba95a538c1d266beb83334af755c34ce642a4178ab0f2e5f7822fd6821d3b68862a8b58f167a9294e6d913b08c1054a69b5d7aec2efdb3cf9796ed84de21a8
- SSDEEP 3:mnlllGlll/l/lXp9ZjrPBY06llSl/gX/ZP:mll0dPBY0O0uXJ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\D3DSCache\e8010882af4f153f\F4EB2D6C-ED2B-4BDD-AD9D-F913287E6768.lock
- Size 4B
- SHA256 7852fce59c67ddf1d6b8b997eaa1adfac004a9f3a91c37295de9223674011fba
- MD5 f49655f856acb8884cc0ace29216f511
- SHA1 cb0f1f87ec0455ec349aaa950c600475ac7b7b6b
- SHA512 599e93d25b174524495ed29653052b3590133096404873318f05fd68f4c9a5c9a3b30574551141fbb73d7329d6be342699a17f3ae84554bab784776dfda2d5f8
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\D3DSCache\e8010882af4f153f\F4EB2D6C-ED2B-4BDD-AD9D-F913287E6768.val
- Size 944B
- SHA256 878947d0ec814fe7c343cdebc05eebf00eb14f3023bdb3809a559e17f399fe5d
- MD5 6bd369f7c74a28194c991ed1404da30f
- SHA1 0f8e3f8ab822c9374409fe399b6bfe5d68cbd643
- SHA512 8fc5f073dc9fa1e1ae47c60a5f06e0a48709fd6a4302dffaa721858409e7bde64bc6856d3fb28891090516d1a7afc542579de287778b5755eafe75cc67d45d93
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\newbootimage.bmp
- Size 673KB
- SHA256 26f2115c30f138167d279a0365380bc7a0c4563c1b2fb504d8ecec1ea0ec1a8c
- MD5 4c5e8b11447602ef0f3fb9b20b67e8b1
- SHA1 06f117ffb34840c4d3ed698a213c76e1c3d2ca15
- SHA512 9aff818d8d6f2fb3e5ababbfa97eb810b324068fac1c9fca27f90f546c80a6b313b50086ce9f6e070ec30b90a03cd034e77a5d8425ed163d85337510147794e5
- SSDEEP 12288:XjgNJNfcc65C5wAY1C9MH11W6WOroxLBDEGI/k6DPYp:XjgfNfT60q3C92xWO4LBuYp
- MD5 SHA1 SHA512 SSDEEP
