Analysis
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max time kernel
153s -
max time network
227s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
02/12/2022, 20:53
Static task
static1
Behavioral task
behavioral1
Sample
18507f81f97e4aee317f2a79792f4d38e57fc8159f32e5199840082c91da128d.exe
Resource
win7-20220901-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
18507f81f97e4aee317f2a79792f4d38e57fc8159f32e5199840082c91da128d.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
18507f81f97e4aee317f2a79792f4d38e57fc8159f32e5199840082c91da128d.exe
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Size
104KB
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MD5
f6fde82954a6214cc0e6420ef1073825
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SHA1
35677caf2cbf7162bedd354459459497975cbd2c
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SHA256
18507f81f97e4aee317f2a79792f4d38e57fc8159f32e5199840082c91da128d
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SHA512
69b0fffcc5e92e3d6e82a6ec268f338c394c00fdfac34f6b514323028273925aa7067cdccdd25edfba9e2e66678cebabcbf7b916fc999b6886e024152585253e
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SSDEEP
3072:twxVMhOC/dTDbq91+mno3t4QZQ3rt8iJkL0:tTfFDbRnOTrt5JA0
Score
7/10
Malware Config
Signatures
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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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation 18507f81f97e4aee317f2a79792f4d38e57fc8159f32e5199840082c91da128d.exe Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation rundll32.exe -
Drops desktop.ini file(s) 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Packages\windows_ie_ac_001\AC\INetHistory\desktop.ini rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Kills process with taskkill 1 IoCs
pid Process 3688 taskkill.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\GPU rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\Wow64-Revision = "0" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "268435456" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Cleared = "1" rundll32.exe Key deleted \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\LowRegistry\DOMStorage rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "0" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionHigh = "268435456" rundll32.exe Key deleted \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLs rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "395196024" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\StaleCompatCache = "1" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "0" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\Wow64-SoftwareFallback = "0" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\Wow64-DeviceId = "140" rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Cleared_TIMESTAMP = cd7e7fae9806d901 rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\DomStorageState rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\BrowserEmulation rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionLow = "395196024" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\Wow64-VendorId = "5140" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\Wow64-SubSysId = "0" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\CVListDomainAttributeSet = "0" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomStorageState\EdpCleanupState = "0" rundll32.exe -
Modifies data under HKEY_USERS 7 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-19\Software rundll32.exe Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft rundll32.exe Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography rundll32.exe Key created \REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133144916791215747" rundll32.exe Key created \REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry rundll32.exe Key created \REGISTRY\USER\S-1-5-19 rundll32.exe -
Modifies registry class 23 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CachePrefix rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheVersion = "1" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Explorer\DomStorageState\EdpCleanupState = "0" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Explorer\Main\OperationalData = "1" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Extensible Cache rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheLimit = "51200" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheVersion = "1" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheVersion = "1" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Explorer\DOMStorage rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Explorer\EdpDomStorage rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\MuiCache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheLimit = "1" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Explorer\Main rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheLimit = "1" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CachePrefix = "Visited:" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Explorer rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Explorer\DomStorageState rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:" rundll32.exe -
Runs .reg file with regedit 1 IoCs
pid Process 776 regedit.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3688 taskkill.exe Token: SeDebugPrivilege 1400 rundll32.exe Token: SeDebugPrivilege 1400 rundll32.exe Token: SeDebugPrivilege 1400 rundll32.exe Token: SeDebugPrivilege 1400 rundll32.exe Token: SeDebugPrivilege 1400 rundll32.exe Token: SeDebugPrivilege 1400 rundll32.exe Token: SeDebugPrivilege 1400 rundll32.exe Token: SeDebugPrivilege 1400 rundll32.exe Token: SeDebugPrivilege 1400 rundll32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4208 rundll32.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1496 wrote to memory of 3832 1496 18507f81f97e4aee317f2a79792f4d38e57fc8159f32e5199840082c91da128d.exe 84 PID 1496 wrote to memory of 3832 1496 18507f81f97e4aee317f2a79792f4d38e57fc8159f32e5199840082c91da128d.exe 84 PID 1496 wrote to memory of 3832 1496 18507f81f97e4aee317f2a79792f4d38e57fc8159f32e5199840082c91da128d.exe 84 PID 3832 wrote to memory of 3688 3832 cmd.exe 86 PID 3832 wrote to memory of 3688 3832 cmd.exe 86 PID 3832 wrote to memory of 3688 3832 cmd.exe 86 PID 3832 wrote to memory of 4208 3832 cmd.exe 87 PID 3832 wrote to memory of 4208 3832 cmd.exe 87 PID 3832 wrote to memory of 4208 3832 cmd.exe 87 PID 4208 wrote to memory of 788 4208 rundll32.exe 93 PID 4208 wrote to memory of 788 4208 rundll32.exe 93 PID 4208 wrote to memory of 788 4208 rundll32.exe 93 PID 4208 wrote to memory of 1400 4208 rundll32.exe 96 PID 4208 wrote to memory of 1400 4208 rundll32.exe 96 PID 4208 wrote to memory of 1400 4208 rundll32.exe 96 PID 3832 wrote to memory of 776 3832 cmd.exe 100 PID 3832 wrote to memory of 776 3832 cmd.exe 100 PID 3832 wrote to memory of 776 3832 cmd.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\18507f81f97e4aee317f2a79792f4d38e57fc8159f32e5199840082c91da128d.exe"C:\Users\Admin\AppData\Local\Temp\18507f81f97e4aee317f2a79792f4d38e57fc8159f32e5199840082c91da128d.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1496 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\temp\IE_Clear_C.bat" "2⤵
- Suspicious use of WriteProcessMemory
PID:3832 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im iexplore.exe3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3688
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C:\Windows\SysWOW64\rundll32.exeRunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 2553⤵
- Checks computer location settings
- Modifies Internet Explorer settings
- Modifies data under HKEY_USERS
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4208 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe" -ResetDestinationList4⤵PID:788
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:255 WinX:0 WinY:0 IEFrame:000000004⤵
- Drops desktop.ini file(s)
- Modifies Internet Explorer settings
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:1400
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C:\Windows\SysWOW64\regedit.exeregedit /s "C:\temp\IE╥╗╝ⁿ╔Φ╓├.reg"3⤵
- Runs .reg file with regedit
PID:776
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
857B
MD5c31825f6d4404b42705e45a78239ddff
SHA11138a71e913e28dde169db4726a6b67547594055
SHA25678e797b068c662ff4a7ef2acb78631e12f88627197179a800fefecfd17c53302
SHA512d44736766d570e26c018acf74d96f8578c7d69635b101f56f34b94213c8fa1f8ffb4f34505437294e1d42b9b6353dd3100e8c7a4ee0e16092b5c40f4f64c95ab