Analysis
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max time kernel
65s -
max time network
37s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
02-02-2022 18:28
Static task
static1
Behavioral task
behavioral1
Sample
e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe
Resource
win10v2004-en-20220113
General
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Target
e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe
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Size
1.7MB
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MD5
43aa5bbf3c44b243538175bd312cd8af
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SHA1
ba2e14ccd5c148c7571671cc0d5f5a01049c38b9
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SHA256
e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948
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SHA512
77cae2b22bc8f9686d3dc0cfced72e4bb0ef81163e2cfc7e12ac88acc828742974677e8a303cb334a2eea7bc1797f434d0793609065b60e9bd6d1b1f449deb6e
Malware Config
Extracted
vidar
50
1148
https://mastodon.social/@prophef6
https://noc.social/@prophef5
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profile_id
1148
Signatures
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
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suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
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suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
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suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
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Vidar Stealer 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1472-55-0x0000000000400000-0x0000000000597000-memory.dmp family_vidar -
Downloads MZ/PE file
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Deletes itself 1 IoCs
Processes:
cmd.exepid Process 1680 cmd.exe -
Loads dropped DLL 4 IoCs
Processes:
e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exepid Process 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exepid Process 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid Process 916 timeout.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid Process 1336 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exepid Process 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid Process Token: SeDebugPrivilege 1336 taskkill.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.execmd.exedescription pid Process procid_target PID 1472 wrote to memory of 1680 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe 29 PID 1472 wrote to memory of 1680 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe 29 PID 1472 wrote to memory of 1680 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe 29 PID 1472 wrote to memory of 1680 1472 e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe 29 PID 1680 wrote to memory of 1336 1680 cmd.exe 31 PID 1680 wrote to memory of 1336 1680 cmd.exe 31 PID 1680 wrote to memory of 1336 1680 cmd.exe 31 PID 1680 wrote to memory of 1336 1680 cmd.exe 31 PID 1680 wrote to memory of 916 1680 cmd.exe 33 PID 1680 wrote to memory of 916 1680 cmd.exe 33 PID 1680 wrote to memory of 916 1680 cmd.exe 33 PID 1680 wrote to memory of 916 1680 cmd.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe"C:\Users\Admin\AppData\Local\Temp\e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1472 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe" & del C:\ProgramData\*.dll & exit2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1680 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im e3e3fab86a5f23fce4ad40791aead7f2558d164a2f40124d217fb391a926c948.exe /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1336
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C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
PID:916
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
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MD5
8f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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MD5
109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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MD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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MD5
a2ee53de9167bf0d6c019303b7ca84e5
SHA12a3c737fa1157e8483815e98b666408a18c0db42
SHA25643536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083
SHA51245b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8
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MD5
7587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
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MD5
8f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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MD5
109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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MD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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MD5
7587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f