Analysis
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max time kernel
16s -
max time network
17s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
05-06-2024 01:23
Static task
static1
Behavioral task
behavioral1
Sample
wrar393es.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
wrar393es.exe
Resource
win10v2004-20240426-en
General
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Target
wrar393es.exe
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Size
1.4MB
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MD5
5de35fab0bd47243ebdab45b64cac273
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SHA1
cee9d0dee8b91952ad03692c9485fe24ceff72e6
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SHA256
6e55531e2205c2f9242a9b2cd9303b60ec9699e0fab26b1e5a7f9f97136ad647
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SHA512
09a8b9d035c9fa67322f50f5a6d903b4bc5aa3028bcda1e218a48922b27baf1867180c754410c94dcc77013d31b7ea3f3a0d67ca8e542f23fbeaaf61a161db0d
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SSDEEP
24576:G38+om3OL/FTrSSZFY0KdfYhMSnb4biHUy+2PBUnNwhqSoocQhP5+BYbNDJu+6kL:G74/Fv9hKdfIvb2iH/JiNWVtcQh5+6ga
Malware Config
Extracted
metasploit
windows/shell_reverse_tcp
172.20.10.7:2425
Signatures
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MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
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Executes dropped EXE 1 IoCs
Processes:
uninstall.exepid process 2896 uninstall.exe -
Loads dropped DLL 3 IoCs
Processes:
wrar393es.exeuninstall.exepid process 1796 wrar393es.exe 2896 uninstall.exe 2896 uninstall.exe -
Modifies system executable filetype association 2 TTPs 4 IoCs
Processes:
uninstall.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-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\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\ uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA} uninstall.exe -
Registers COM server for autorun 1 TTPs 3 IoCs
Processes:
uninstall.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B41DB860-64E4-11D2-9906-E49FADC173CA}\InProcServer32 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B41DB860-64E4-11D2-9906-E49FADC173CA}\InProcServer32\ = "C:\\Program Files (x86)\\WinRAR\\rarext64.dll" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B41DB860-64E4-11D2-9906-E49FADC173CA}\InProcServer32\ThreadingModel = "Apartment" uninstall.exe -
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 64 IoCs
Processes:
wrar393es.exeuninstall.exedescription ioc process File created C:\Program Files (x86)\WinRAR\Formats\lzh.fmt wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR wrar393es.exe File created C:\Program Files (x86)\WinRAR\File_Id.diz wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Formats\ace.fmt wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Rar.txt wrar393es.exe File created C:\Program Files (x86)\WinRAR\Uninstall.lst wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Formats\uue.fmt wrar393es.exe File created C:\Program Files (x86)\WinRAR\Formats\z.fmt wrar393es.exe File created C:\Program Files (x86)\WinRAR\RarExtLoader.exe wrar393es.exe File created C:\Program Files (x86)\WinRAR\Formats\UNACEV2.DLL wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Formats\arj.fmt wrar393es.exe File created C:\Program Files (x86)\WinRAR\__tmp_rar_sfx_access_check_259405747 wrar393es.exe File created C:\Program Files (x86)\WinRAR\Formats\tar.fmt wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Winrar.lng wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\UnrarSrc.txt wrar393es.exe File created C:\Program Files (x86)\WinRAR\Uninstall.exe wrar393es.exe File created C:\Program Files (x86)\WinRAR\WinRAR.exe wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Formats\7zxa.dll wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Formats wrar393es.exe File created C:\Program Files (x86)\WinRAR\Formats\bz2.fmt wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Formats\bz2.fmt wrar393es.exe File created C:\Program Files (x86)\WinRAR\Formats\cab.fmt wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\NotasTec.txt wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Novedades.txt wrar393es.exe File created C:\Program Files (x86)\WinRAR\Rar.exe wrar393es.exe File created C:\Program Files (x86)\WinRAR\Uninstall.lng wrar393es.exe File created C:\Program Files (x86)\WinRAR\Formats\arj.fmt wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Formats\cab.fmt wrar393es.exe File created C:\Program Files (x86)\WinRAR\Winrar.lng wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Formats\UNACEV2.DLL wrar393es.exe File created C:\Program Files (x86)\WinRAR\Formats\ace.fmt wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Formats\lzh.fmt wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Uninstall.lng wrar393es.exe File created C:\Program Files (x86)\WinRAR\WinCon.sfx wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\RarExtLoader.exe wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\WinRAR.exe wrar393es.exe File created C:\Program Files (x86)\WinRAR\Formats\7zxa.dll wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\WinCon.sfx wrar393es.exe File created C:\Program Files (x86)\WinRAR\Rar.lng wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\UnRAR.exe wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\RarExt64.dll wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Formats\gz.fmt wrar393es.exe File created C:\Program Files (x86)\WinRAR\UnRAR.exe wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Rar.lng wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Rarext.lng wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Uninstall.lst wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Rar.exe wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Uninstall.exe wrar393es.exe File created C:\Program Files (x86)\WinRAR\Formats\7z.fmt wrar393es.exe File created C:\Program Files (x86)\WinRAR\Rarext.lng wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\File_Id.diz wrar393es.exe File created C:\Program Files (x86)\WinRAR\Leame.txt wrar393es.exe File created C:\Program Files (x86)\WinRAR\Order.htm wrar393es.exe File created C:\Program Files (x86)\WinRAR\zip.sfx wrar393es.exe File created C:\Program Files (x86)\WinRAR\RarExt.dll wrar393es.exe File created C:\Program Files (x86)\WinRAR\NotasTec.txt wrar393es.exe File created C:\Program Files (x86)\WinRAR\RarFiles.lst wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\licencia.rtf wrar393es.exe File created C:\Program Files (x86)\WinRAR\RarExt64.dll wrar393es.exe File created C:\Program Files (x86)\WinRAR\Formats\iso.fmt wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Formats\iso.fmt wrar393es.exe File created C:\Program Files (x86)\WinRAR\zipnew.dat uninstall.exe File created C:\Program Files (x86)\WinRAR\Descript.ion wrar393es.exe File opened for modification C:\Program Files (x86)\WinRAR\Descript.ion wrar393es.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Processes:
wrar393es.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Main wrar393es.exe -
Modifies registry class 64 IoCs
Processes:
uninstall.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.r18\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.r29 uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.arj uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shell\open\command uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shell uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\InProcServer32 uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA} uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B41DB860-64E4-11D2-9906-E49FADC173CA}\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.r11 uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.ace uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell\open\command\ = "\"C:\\Program Files (x86)\\WinRAR\\WinRAR.exe\" \"%1\"" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\ContextMenuHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\ uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\ShellEx\DragDropHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.r28 uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.zip\ShellNew uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.r10\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.xxe uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\ uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.rar\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.r20\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.r21 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.r26\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.lzh 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\WinRAR\shellex\DropHandler\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.r09 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.r04\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.r11\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shell\open\command uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\WinRAR32 uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.r24 uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR32 uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B41DB860-64E4-11D2-9906-E49FADC173CA}\InProcServer32 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B41DB860-64E4-11D2-9906-E49FADC173CA}\InProcServer32\ThreadingModel = "Apartment" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\WinRAR\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.r16\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.r05 uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell\open\command uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.r15 uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.rev uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\DropHandler\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA} uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA} uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\DropHandler uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.r06 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.r08\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\ = "Archivo WinRAR ZIP" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.r07 uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.r14\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.r17\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.r15\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.arj\ = "WinRAR" uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.tbz2\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA} uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\DropHandler uninstall.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.xxe\ = "WinRAR" uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.tar uninstall.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B41DB860-64E4-11D2-9906-E49FADC173CA} uninstall.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
wrar393es.exepid process 1796 wrar393es.exe 1796 wrar393es.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
wrar393es.exedescription pid process target process PID 1796 wrote to memory of 2896 1796 wrar393es.exe uninstall.exe PID 1796 wrote to memory of 2896 1796 wrar393es.exe uninstall.exe PID 1796 wrote to memory of 2896 1796 wrar393es.exe uninstall.exe PID 1796 wrote to memory of 2896 1796 wrar393es.exe uninstall.exe PID 1796 wrote to memory of 2896 1796 wrar393es.exe uninstall.exe PID 1796 wrote to memory of 2896 1796 wrar393es.exe uninstall.exe PID 1796 wrote to memory of 2896 1796 wrar393es.exe uninstall.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\wrar393es.exe"C:\Users\Admin\AppData\Local\Temp\wrar393es.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1796 -
C:\Program Files (x86)\WinRAR\uninstall.exe"C:\Program Files (x86)\WinRAR\uninstall.exe" /setup2⤵
- Executes dropped EXE
- Loads dropped DLL
- Modifies system executable filetype association
- Registers COM server for autorun
- Drops file in Program Files directory
- Modifies registry class
PID:2896
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Change Default File Association
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
82KB
MD56b2cfe8949ebe63453f0c936fdfe3ca1
SHA1724b53ecbf2f515480b8eff7166b84fa65bd5646
SHA256ea3cfb9a913a02a2ecdd8efddae6e0aa2876963bb84f361ee6fa54df625aa099
SHA512bf43a133dde60f340f9f927c98bc27c1e29dcbc5574d2a46af07911b5d939f0a14ed578d0388c35820067eabb41ffa8350bb30640dc22b8f889a2b22733de7d6
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Filesize
1015KB
MD5b284e0f20811226bc0211bf742247542
SHA1abbedb56afe58b76b80732f42995f8500334b604
SHA256aa3db28e89b5e48128c8a63b197ab5f58677416fcd4013f9b8752983bc2e6359
SHA512082f27ed3b5310562c297892165f158485f989b68f26ce5283f29c3542bbd0fb21379fd9ef6cf656136a7c71fb5c774391a171852d985dbc9a844e8f8c77e180
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Filesize
3KB
MD56627e3a304e7eb57eab9119922f84699
SHA1b1b9f8b91bc3bd164e00d9b2ff84525830baeab0
SHA25669a7583ab80fe44a8ff923360d22b282c6c963784361704874f06610fae942ce
SHA512d4c2bb32f496e67126186b3b887f6b9b9a984769a1d1cf591380532b808c592ed7bc92492a8a8394c417adf2a766d3a73bf05360a2889c339859af598d619c47
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Filesize
287KB
MD50f084c219f910c74d18cf15e62f1b200
SHA13921ed7dc84d90183f176de1e8d43ac629baaa50
SHA2560c193b40aed6e25a6e316c192344f0895cc0e415a745573c4a28052634abc03b
SHA5129a0af963c264fadb3490b9945f7195f6f83b9f4c0e0b508f70fc1d61880847b11ab5104b9ef2e6d79caf15ac5db4586a772134d8cca8df7be41bcefc4692f9eb
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Filesize
118KB
MD5eef1a4f707778f6659ae9cb26b128eb9
SHA1d048f25ac6f21d136487d51c95af1688e27003cc
SHA256353fe961b123f048d02944449d556a4706eb6212decee71fe720ab9e7dad1cec
SHA5123969939e569e8419d07ea8301c051f69dafb8c4141903b858973b0a702158942903b96e94479ecfcbc9e54ebb630263d4ae590ae10156278f0270f0cfb4d0d13