Analysis
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max time kernel
77s -
max time network
30s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
29-05-2023 06:36
Behavioral task
behavioral1
Sample
decryptor_575a467c.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
decryptor_575a467c.exe
Resource
win10v2004-20230220-en
General
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Target
decryptor_575a467c.exe
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Size
1.7MB
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MD5
a72345f5a627a2c8222f71347a44b013
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SHA1
595bf5761ec6eee55fb291cb465736bbbb4bfcf8
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SHA256
9c9a264f5f1a78753f7f80ee6143d6c8967fa1375821bc09187767756d366800
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SHA512
5081c69929c6bd43277f416e942c7d8bb57a45c26089ade5a985ed9ae6a376128ed7dc9cba2618cf918941f7b919db73f1f48cf0c6d30b707927c4a77fbb3482
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SSDEEP
24576:SV2LT3INDJRQDj4uFgjR9XKaNIAOgoXeQ7vIKiKyn9cr2Uy9TnFXlDi9uIIg:fLT4NDG4uGlF6AubJyKr2UBuIIg
Malware Config
Extracted
agenda
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company_id
feGDg5BHWw
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note
-- Qilin Your network/system was encrypted. Encrypted files have new extension. -- Compromising and sensitive data We have downloaded compromising and sensitive data from you system/network If you refuse to communicate with us and we do not come to an agreement, your data will be published. Data includes: - Employees personal data, CVs, DL , SSN. - Complete network map including credentials for local and remote services. - Financial information including clients data, bills, budgets, annual reports, bank statements. - Complete datagrams/schemas/drawings for manufacturing in solidworks format - And more... -- Warning 1) If you modify files - our decrypt software won't able to recover data 2) If you use third party software - you can damage/modify files (see item 1) 3) You need cipher key / our decrypt software to restore you files. 4) The police or authorities will not be able to help you get the cipher key. We encourage you to consider your decisions. -- Recovery 1) Download tor browser: https://www.torproject.org/download/ 2) Go to domain 3) Enter credentials-- Credentials Extension: feGDg5BHWw Domain: e3v6tjarcltwc4hdkn6fxnpkzq42ul7swf5cfqw6jzvic4577vxsxhid.onion login: _RgxgvCfv_3rQI5oinfr9gj5JS6_AGP7 password:
Signatures
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Agenda Ransomware
A ransomware with multiple variants written in Golang and Rust first seen in August 2022.
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Drops desktop.ini file(s) 3 IoCs
Processes:
decryptor_575a467c.exedescription ioc process File opened for modification C:\$Recycle.Bin\S-1-5-21-2647223082-2067913677-935928954-1000\desktop.ini decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Desktop.ini decryptor_575a467c.exe File opened for modification C:\Program Files\desktop.ini decryptor_575a467c.exe -
Drops file in Program Files directory 64 IoCs
Processes:
decryptor_575a467c.exedescription ioc process File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\es-ES\InputPersonalization.exe.mui decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fr-FR\tabskb.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Monet.jpg decryptor_575a467c.exe File opened for modification C:\Program Files\7-Zip\Lang\sr-spc.txt decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\To_Do_List.emf decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\blackbars80.png decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\en-US\msdasqlr.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\rollinghills.png decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\Content.xml decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ja-JP\InputPersonalization.exe.mui decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\zh-TW\tipresx.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\7-Zip\7z.exe decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\MSInfo\it-IT\msinfo32.exe.mui decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\photoedge_buttongraphic.png decryptor_575a467c.exe File opened for modification C:\Program Files\7-Zip\Lang\cs.txt decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\osknumpad\osknumpadbase.xml decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyBoy\nav_leftarrow.png decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Full\15x15dot.png decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_btn-previous-over-select.png decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\mshwjpn.dll decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\MSTTSLoc.dll decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\dicjp.dll decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Graph.emf decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Stucco.gif decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\System\msadc\ja-JP\msadcer.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\rectangle_performance_Thumbnail.bmp decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\FlipPage\NavigationLeft_ButtonGraphic.png decryptor_575a467c.exe File opened for modification C:\Program Files\7-Zip\Lang\vi.txt decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\en-US\split.avi decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\symbols\ea-sym.xml decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\zh-CN\tipresx.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\dicjp.bin decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\en-US\TipBand.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Pine_Lumber.jpg decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\de-DE\MSTTSLoc.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\fr-FR\oledb32r.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Shatter\NavigationLeft_SelectionSubpicture.png decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskpred\oskpredbase.xml decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\DvdTransform.fx decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\LayeredTitles\203x8subpicture.png decryptor_575a467c.exe File opened for modification C:\Program Files\7-Zip\7z.dll decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\System\it-IT\wab32res.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\System\msadc\ja-JP\msadcor.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Memories\btn-previous-static.png decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\shadowonlyframe_videoinset.png decryptor_575a467c.exe File opened for modification C:\Program Files\7-Zip\Lang\sr-spl.txt decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\numbers\numbase.xml decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\msxactps.dll decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Full\NavigationLeft_ButtonGraphic.png decryptor_575a467c.exe File opened for modification C:\Program Files\7-Zip\Lang\nn.txt decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\auxpad\auxbase.xml decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\hu-HU\tipresx.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\it-IT\TipTsf.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\System\msadc\es-ES\msdaremr.dll.mui decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Memories\Memories_buttonClear.png decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\NavigationLeft_SelectionSubpicture.png decryptor_575a467c.exe File opened for modification C:\Program Files\7-Zip\7z.sfx decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fr-FR\InkWatson.exe.mui decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\grid_(cm).wmf decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\OrangeCircles.jpg decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_frame-highlight.png decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_btn-next-static.png decryptor_575a467c.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\web.xml decryptor_575a467c.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\720x480blacksquare.png decryptor_575a467c.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 452 2032 WerFault.exe decryptor_575a467c.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
decryptor_575a467c.exepid process 2032 decryptor_575a467c.exe 2032 decryptor_575a467c.exe 2032 decryptor_575a467c.exe 2032 decryptor_575a467c.exe 2032 decryptor_575a467c.exe 2032 decryptor_575a467c.exe 2032 decryptor_575a467c.exe 2032 decryptor_575a467c.exe 2032 decryptor_575a467c.exe 2032 decryptor_575a467c.exe 2032 decryptor_575a467c.exe 2032 decryptor_575a467c.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
decryptor_575a467c.exedescription pid process Token: SeShutdownPrivilege 2032 decryptor_575a467c.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
decryptor_575a467c.exedescription pid process target process PID 2032 wrote to memory of 452 2032 decryptor_575a467c.exe WerFault.exe PID 2032 wrote to memory of 452 2032 decryptor_575a467c.exe WerFault.exe PID 2032 wrote to memory of 452 2032 decryptor_575a467c.exe WerFault.exe PID 2032 wrote to memory of 452 2032 decryptor_575a467c.exe WerFault.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\decryptor_575a467c.exe"C:\Users\Admin\AppData\Local\Temp\decryptor_575a467c.exe"1⤵
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 8402⤵
- Program crash
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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memory/2032-54-0x0000000000240000-0x00000000003FE000-memory.dmpFilesize
1.7MB