Analysis
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max time kernel
13s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
30-10-2024 23:24
Static task
static1
Behavioral task
behavioral1
Sample
winrar-x64-701.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
winrar-x64-701.exe
Resource
win10v2004-20241007-en
General
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Target
winrar-x64-701.exe
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Size
3.8MB
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MD5
46c17c999744470b689331f41eab7df1
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SHA1
b8a63127df6a87d333061c622220d6d70ed80f7c
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SHA256
c5b5def1c8882b702b6b25cbd94461c737bc151366d2d9eba5006c04886bfc9a
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SHA512
4b02a3e85b699f62df1b4fe752c4dee08cfabc9b8bb316bc39b854bd5187fc602943a95788ec680c7d3dc2c26ad882e69c0740294bd6cb3b32cdcd165a9441b6
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SSDEEP
98304:6NRBOBfKgQIm9EOTqw8vjh9Ac9nUNupK4hVvcF+yHrAr:sR/gmeOqv7Ac9F0kB
Malware Config
Signatures
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Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Program Files directory 60 IoCs
description ioc Process File created C:\Program Files\WinRAR\Uninstall.lst winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\WinRAR.exe winrar-x64-701.exe File created C:\Program Files\WinRAR\Default.SFX winrar-x64-701.exe File created C:\Program Files\WinRAR\zipnew.dat uninstall.exe File created C:\Program Files\WinRAR\Rar.exe winrar-x64-701.exe File created C:\Program Files\WinRAR\Uninstall.exe winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\UnRAR.exe winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\RarExtPackage.msix winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\Zip.SFX winrar-x64-701.exe File created C:\Program Files\WinRAR\ReadMe.txt winrar-x64-701.exe File created C:\Program Files\WinRAR\RarExtInstaller.exe winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\RarExtLogo.altform-unplated_targetsize-32.png winrar-x64-701.exe File created C:\Program Files\WinRAR\rarnew.dat uninstall.exe File opened for modification C:\Program Files\WinRAR\Rar.txt winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\7zxa.dll winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\Default.SFX winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\RarExtLogo.altform-unplated_targetsize-48.png winrar-x64-701.exe File created C:\Program Files\WinRAR\WhatsNew.txt winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\Resources.pri winrar-x64-701.exe File created C:\Program Files\WinRAR\Zip32.SFX winrar-x64-701.exe File created C:\Program Files\WinRAR\RarExtLogo.altform-unplated_targetsize-64.png winrar-x64-701.exe File created C:\Program Files\WinRAR\UnRAR.exe winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\RarExt32.dll winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\ReadMe.txt winrar-x64-701.exe File created C:\Program Files\WinRAR\License.txt winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\Order.htm winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\RarFiles.lst winrar-x64-701.exe File created C:\Program Files\WinRAR\Resources.pri winrar-x64-701.exe File created C:\Program Files\WinRAR\WinCon.SFX winrar-x64-701.exe File created C:\Program Files\WinRAR\Descript.ion winrar-x64-701.exe File created C:\Program Files\WinRAR\RarFiles.lst winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\RarExt.dll winrar-x64-701.exe File created C:\Program Files\WinRAR\RarExt32.dll winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\Rar.exe winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\WinCon.SFX winrar-x64-701.exe File created C:\Program Files\WinRAR\Zip.SFX winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\Zip32.SFX winrar-x64-701.exe File created C:\Program Files\WinRAR\Default32.SFX winrar-x64-701.exe File created C:\Program Files\WinRAR\WinCon32.SFX winrar-x64-701.exe File created C:\Program Files\WinRAR\WinRAR.chm winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\License.txt winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\Uninstall.exe winrar-x64-701.exe File created C:\Program Files\WinRAR\RarExt.dll winrar-x64-701.exe File created C:\Program Files\WinRAR\RarExtLogo.altform-unplated_targetsize-48.png winrar-x64-701.exe File created C:\Program Files\WinRAR\RarExtPackage.msix winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\WinCon32.SFX winrar-x64-701.exe File created C:\Program Files\WinRAR\RarExtLogo.altform-unplated_targetsize-32.png winrar-x64-701.exe File created C:\Program Files\WinRAR\__tmp_rar_sfx_access_check_259535961 winrar-x64-701.exe File created C:\Program Files\WinRAR\Order.htm winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\RarExtInstaller.exe winrar-x64-701.exe File created C:\Program Files\WinRAR\WinRAR.exe winrar-x64-701.exe File created C:\Program Files\WinRAR\7zxa.dll winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\RarExtLogo.altform-unplated_targetsize-64.png winrar-x64-701.exe File created C:\Program Files\WinRAR\Rar.txt winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\WhatsNew.txt winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\Uninstall.lst winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\Default32.SFX winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\WinRAR.chm winrar-x64-701.exe File opened for modification C:\Program Files\WinRAR\Descript.ion winrar-x64-701.exe -
Executes dropped EXE 1 IoCs
pid Process 2708 uninstall.exe -
Loads dropped DLL 5 IoCs
pid Process 432 winrar-x64-701.exe 1364 Process not Found 2708 uninstall.exe 2708 uninstall.exe 1364 Process not Found -
Modifies system executable filetype association 2 TTPs 8 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA} uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\ uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA} uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\ uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR32 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}" uninstall.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Main winrar-x64-701.exe -
Modifies registry class 64 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR32 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.bz\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shell\open\command uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\ContextMenuHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\ uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B41DB860-64E4-11D2-9906-E49FADC173CA} uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\ uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA} uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.zip\ShellNew uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.xxe uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\InProcServer32\ThreadingModel = "Apartment" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\WinRAR32 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\DropHandler\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\ = "WinRAR archive" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA} uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA} uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell\open\command\ = "\"C:\\Program Files\\WinRAR\\WinRAR.exe\" \"%1\"" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\ = "WinRAR ZIP archive" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\InProcServer32 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.rar\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.zip uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.tbz2\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.txz uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.zst uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA} uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\ uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.zip\ShellNew\FileName = "C:\\Program Files\\WinRAR\\zipnew.dat" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.lha uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.xxe\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\ uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\ShellEx\DragDropHandlers\WinRAR\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\WinRAR uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.tbz uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.lz\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.uue\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.taz\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\WinRAR32 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.zipx\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR32 uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA} uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.lha\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.7z uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.uue uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.z\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.rar uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.txz\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.tzst\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell\open\command uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.zip\ = "WinRAR.ZIP" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.lzh\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.001 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\InProcServer32\ = "C:\\Program Files\\WinRAR\\rarext32.dll" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\DropHandler uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\DropHandler\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\WinRAR uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\DefaultIcon\ = "C:\\Program Files\\WinRAR\\WinRAR.exe,1" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.bz2\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.xz\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\DefaultIcon uninstall.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 432 winrar-x64-701.exe 432 winrar-x64-701.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 432 wrote to memory of 2708 432 winrar-x64-701.exe 29 PID 432 wrote to memory of 2708 432 winrar-x64-701.exe 29 PID 432 wrote to memory of 2708 432 winrar-x64-701.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\winrar-x64-701.exe"C:\Users\Admin\AppData\Local\Temp\winrar-x64-701.exe"1⤵
- Drops file in Program Files directory
- Loads dropped DLL
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:432 -
C:\Program Files\WinRAR\uninstall.exe"C:\Program Files\WinRAR\uninstall.exe" /setup2⤵
- Drops file in Program Files directory
- Executes dropped EXE
- Loads dropped DLL
- Modifies system executable filetype association
- Modifies registry class
PID:2708
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
105KB
MD5b954981a253f5e1ee25585037a0c5fee
SHA196566e5c591df1c740519371ee6953ac1dc6a13f
SHA25659e40b34b09be2654b793576035639c459ad6e962f9f9cd000d556fa21b1c7cd
SHA5126a7772c6b404cd7fee50110b894ff0c470e5813264e605852b8dcc06bfaeb62b8cc79adcb695b3da149e42d5372a0d730cc7e8ed893c0bd0edb015fc088b7531
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Filesize
45KB
MD51c44c85fdab8e9c663405cd8e4c3dbbd
SHA174d44e9cb2bf6f4c152aadb61b2ffc6b6ccd1c88
SHA25633108dd40b4e07d60e96e1bcfa4ad877eb4906de2cc55844e40360e5d4dafb5d
SHA51246d3fb4f2d084d51b6fd01845823100abc81913ebd1b0bcfeb52ef18e8222199d282aa45cae452f0716e0e2bf5520f7a6a254363d22b65f7ab6c10f11292ee2d
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Filesize
316KB
MD56ca1bc8bfe8b929f448e1742dacb8e7f
SHA1eca3e637db230fa179dcd6c6499bd7d616f211e8
SHA256997184b6f08d36dedc2cd12ee8dc5afb5e6e4bf77f7ab10f7ade9eefdb163344
SHA512d823f2c960a4d92129b9bda0f4f9195d32e64b929082b5efb9149546b5053021255d1dd03cb443f0a03106314554f76b94173e280a553a81e4ac2ac282877973
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Filesize
3.1MB
MD553cf9bacc49c034e9e947d75ffab9224
SHA17db940c68d5d351e4948f26425cd9aee09b49b3f
SHA2563b214fd9774c6d96332e50a501c5e467671b8b504070bbb17e497083b7e282c3
SHA51244c9154b1fdbcf27ab7faee6be5b563a18b2baead3e68b3ea788c6c76cf582f52f3f87bd447a4f6e25ec7d4690761332211659d754fb4e0630c22a372e470bda
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Filesize
477KB
MD54783f1a5f0bba7a6a40cb74bc8c41217
SHA1a22b9dc8074296841a5a78ea41f0e2270f7b7ad7
SHA256f376aaa0d4444d0727db5598e8377f9f1606400adbbb4772d39d1e4937d5f28c
SHA512463dff17f06eca41ae76e3c0b2efc4ef36529aa2eaed5163eec0a912fe7802c9fb38c37acfe94b82972861aaf1acf02823a5948fbb3292bb4743641acb99841e