f3499257cbdf648dcc3c1a25bbf5d61d.exe
f3499257cbdf648dcc3c1a25bbf5d61d.exe
663KB
02-09-2021 13:23
f3499257cbdf648dcc3c1a25bbf5d61d
5cd11a0ff628ec90334976be4d188299f171360b
e3772dff75f0c54d488300728db28432abacffff7485f8da1b05a3f7cf0bc0ae
Extracted
| Family | vidar |
| Version | 40.3 |
| Botnet | 1008 |
| C2 |
https://lenko349.tumblr.com/ |
| Attributes |
profile_id
1008
|
Filter: none
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Vidar
Description
Vidar is an infostealer based on Arkei stealer.
Tags
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
Description
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
Tags
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suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
Description
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
Tags
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suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Description
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Tags
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Vidar Stealer
Tags
Reported IOCs
resource yara_rule behavioral2/memory/3976-115-0x0000000004910000-0x00000000049E3000-memory.dmp family_vidar behavioral2/memory/3976-116-0x0000000000400000-0x0000000002BB1000-memory.dmp family_vidar -
Downloads MZ/PE file
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Loads dropped DLLf3499257cbdf648dcc3c1a25bbf5d61d.exe
Reported IOCs
pid process 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe -
Reads user/profile data of web browsers
Description
Infostealers often target stored browser data, which can include saved credentials etc.
Tags
TTPs
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Accesses 2FA software files, possible credential harvesting
Tags
TTPs
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Accesses cryptocurrency files/wallets, possible credential harvesting
Tags
TTPs
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Checks installed software on the system
Description
Looks up Uninstall key entries in the registry to enumerate software on the system.
Tags
TTPs
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Enumerates physical storage devices
Description
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
TTPs
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Checks processor information in registryf3499257cbdf648dcc3c1a25bbf5d61d.exe
Description
Processor information is often read in order to detect sandboxing environments.
TTPs
Reported IOCs
description ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 f3499257cbdf648dcc3c1a25bbf5d61d.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString f3499257cbdf648dcc3c1a25bbf5d61d.exe -
Delays execution with timeout.exetimeout.exe
Tags
Reported IOCs
pid process 2728 timeout.exe -
Kills process with taskkilltaskkill.exe
Tags
Reported IOCs
pid process 368 taskkill.exe -
Modifies system certificate storef3499257cbdf648dcc3c1a25bbf5d61d.exe
Tags
TTPs
Reported IOCs
description ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 f3499257cbdf648dcc3c1a25bbf5d61d.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 f3499257cbdf648dcc3c1a25bbf5d61d.exe -
Suspicious behavior: EnumeratesProcessesf3499257cbdf648dcc3c1a25bbf5d61d.exe
Reported IOCs
pid process 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe -
Suspicious use of AdjustPrivilegeTokentaskkill.exe
Reported IOCs
description pid process Token: SeDebugPrivilege 368 taskkill.exe -
Suspicious use of WriteProcessMemoryf3499257cbdf648dcc3c1a25bbf5d61d.execmd.exe
Reported IOCs
description pid process target process PID 3976 wrote to memory of 3860 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe cmd.exe PID 3976 wrote to memory of 3860 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe cmd.exe PID 3976 wrote to memory of 3860 3976 f3499257cbdf648dcc3c1a25bbf5d61d.exe cmd.exe PID 3860 wrote to memory of 368 3860 cmd.exe taskkill.exe PID 3860 wrote to memory of 368 3860 cmd.exe taskkill.exe PID 3860 wrote to memory of 368 3860 cmd.exe taskkill.exe PID 3860 wrote to memory of 2728 3860 cmd.exe timeout.exe PID 3860 wrote to memory of 2728 3860 cmd.exe timeout.exe PID 3860 wrote to memory of 2728 3860 cmd.exe timeout.exe
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C:\Users\Admin\AppData\Local\Temp\f3499257cbdf648dcc3c1a25bbf5d61d.exePID:3976"C:\Users\Admin\AppData\Local\Temp\f3499257cbdf648dcc3c1a25bbf5d61d.exe"Loads dropped DLLChecks processor information in registryModifies system certificate storeSuspicious behavior: EnumeratesProcessesSuspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exePID:3860"C:\Windows\System32\cmd.exe" /c taskkill /im f3499257cbdf648dcc3c1a25bbf5d61d.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\f3499257cbdf648dcc3c1a25bbf5d61d.exe" & del C:\ProgramData\*.dll & exitSuspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exePID:368taskkill /im f3499257cbdf648dcc3c1a25bbf5d61d.exe /fKills process with taskkillSuspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\timeout.exePID:2728timeout /t 6Delays execution with timeout.exe
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C:\ProgramData\freebl3.dll
MD5ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
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C:\ProgramData\mozglue.dll
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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C:\ProgramData\msvcp140.dll
MD5109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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C:\ProgramData\nss3.dll
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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C:\ProgramData\softokn3.dll
MD5a2ee53de9167bf0d6c019303b7ca84e5
SHA12a3c737fa1157e8483815e98b666408a18c0db42
SHA25643536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083
SHA51245b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8
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C:\ProgramData\vcruntime140.dll
MD57587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
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\ProgramData\mozglue.dll
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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\ProgramData\nss3.dll
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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memory/368-120-0x0000000000000000-mapping.dmp
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memory/2728-121-0x0000000000000000-mapping.dmp
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memory/3860-119-0x0000000000000000-mapping.dmp
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memory/3976-116-0x0000000000400000-0x0000000002BB1000-memory.dmp
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memory/3976-115-0x0000000004910000-0x00000000049E3000-memory.dmp