Analysis
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max time kernel
81s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
22-04-2022 11:52
Static task
static1
Behavioral task
behavioral1
Sample
bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe
Resource
win7-20220414-en
General
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Target
bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe
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Size
635KB
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MD5
ebfb5ded5dc595e22ee02b08597b93eb
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SHA1
8c33736b8b3dc750027ef49b1059d5d3a231182a
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SHA256
bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403
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SHA512
e74d3f71ece40008cdcb7bcdfc6547ca406e4fb3fd3048177648d0ae906ad11223412963ee6b2b3ebe70a14006bc4ddb9d387b129a4f27fd34c4e8a9f5afdead
Malware Config
Extracted
vidar
51.7
977
https://t.me/hi20220412
https://noc.social/@samal6
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profile_id
977
Signatures
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Vidar Stealer 2 IoCs
Processes:
resource yara_rule behavioral2/memory/4088-131-0x0000000002140000-0x00000000021EF000-memory.dmp family_vidar behavioral2/memory/4088-132-0x0000000000400000-0x00000000004C7000-memory.dmp family_vidar -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe -
Loads dropped DLL 2 IoCs
Processes:
bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exepid Process 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.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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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:
bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid Process 3880 timeout.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid Process 3220 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exepid Process 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid Process Token: SeDebugPrivilege 3220 taskkill.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.execmd.exedescription pid Process procid_target PID 4088 wrote to memory of 3876 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe 92 PID 4088 wrote to memory of 3876 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe 92 PID 4088 wrote to memory of 3876 4088 bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe 92 PID 3876 wrote to memory of 3220 3876 cmd.exe 94 PID 3876 wrote to memory of 3220 3876 cmd.exe 94 PID 3876 wrote to memory of 3220 3876 cmd.exe 94 PID 3876 wrote to memory of 3880 3876 cmd.exe 95 PID 3876 wrote to memory of 3880 3876 cmd.exe 95 PID 3876 wrote to memory of 3880 3876 cmd.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe"C:\Users\Admin\AppData\Local\Temp\bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4088 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe" & del C:\ProgramData\*.dll & exit2⤵
- Suspicious use of WriteProcessMemory
PID:3876 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im bc4d1e8e09905b7dd1d4b14ae7ba3b100e1baa7aeb567e225107d4439da03403.exe /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3220
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C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
PID:3880
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k appmodel -p -s camsvc1⤵PID:4300
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
326KB
MD5ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
429KB
MD5109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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Filesize
141KB
MD5a2ee53de9167bf0d6c019303b7ca84e5
SHA12a3c737fa1157e8483815e98b666408a18c0db42
SHA25643536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083
SHA51245b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8
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Filesize
81KB
MD57587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f