Analysis
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max time kernel
122s -
max time network
166s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
12-08-2021 14:35
Static task
static1
Behavioral task
behavioral1
Sample
ef0370c80915653fe001b5c9682bde37.exe
Resource
win7v20210410
General
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Target
ef0370c80915653fe001b5c9682bde37.exe
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Size
1.3MB
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MD5
ef0370c80915653fe001b5c9682bde37
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SHA1
98d60720102caa4e52ba46ef79e6006484908fe4
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SHA256
40480036363a57a125f0ba8d78005327b8e3f7d496d486961e75bf67089034bc
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SHA512
32e37902ef53f5ba1d7c274a4ff03693d94a5504f4396ae143e90c5cd124b989a62ce3df2c738f0f7ff62350df8d3d3cc5467b6025d032411ee054ab7d29e72d
Malware Config
Extracted
vidar
40
921
https://lenak513.tumblr.com/
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profile_id
921
Signatures
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Vidar Stealer 3 IoCs
Processes:
resource yara_rule behavioral2/memory/2952-122-0x0000000000400000-0x00000000004A1000-memory.dmp family_vidar behavioral2/memory/2952-123-0x000000000046B77D-mapping.dmp family_vidar behavioral2/memory/2952-124-0x0000000000400000-0x00000000004A1000-memory.dmp family_vidar -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
Processes:
ef0370c80915653fe001b5c9682bde37.exepid process 2952 ef0370c80915653fe001b5c9682bde37.exe 2952 ef0370c80915653fe001b5c9682bde37.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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Suspicious use of SetThreadContext 1 IoCs
Processes:
ef0370c80915653fe001b5c9682bde37.exedescription pid process target process PID 3128 set thread context of 2952 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1540 2952 WerFault.exe ef0370c80915653fe001b5c9682bde37.exe -
Processes:
ef0370c80915653fe001b5c9682bde37.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 ef0370c80915653fe001b5c9682bde37.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 ef0370c80915653fe001b5c9682bde37.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
ef0370c80915653fe001b5c9682bde37.exeWerFault.exepid process 2952 ef0370c80915653fe001b5c9682bde37.exe 2952 ef0370c80915653fe001b5c9682bde37.exe 2952 ef0370c80915653fe001b5c9682bde37.exe 2952 ef0370c80915653fe001b5c9682bde37.exe 2952 ef0370c80915653fe001b5c9682bde37.exe 2952 ef0370c80915653fe001b5c9682bde37.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
ef0370c80915653fe001b5c9682bde37.exeWerFault.exedescription pid process Token: SeDebugPrivilege 3128 ef0370c80915653fe001b5c9682bde37.exe Token: SeRestorePrivilege 1540 WerFault.exe Token: SeBackupPrivilege 1540 WerFault.exe Token: SeDebugPrivilege 1540 WerFault.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
ef0370c80915653fe001b5c9682bde37.exedescription pid process target process PID 3128 wrote to memory of 3008 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe PID 3128 wrote to memory of 3008 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe PID 3128 wrote to memory of 3008 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe PID 3128 wrote to memory of 2952 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe PID 3128 wrote to memory of 2952 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe PID 3128 wrote to memory of 2952 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe PID 3128 wrote to memory of 2952 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe PID 3128 wrote to memory of 2952 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe PID 3128 wrote to memory of 2952 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe PID 3128 wrote to memory of 2952 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe PID 3128 wrote to memory of 2952 3128 ef0370c80915653fe001b5c9682bde37.exe ef0370c80915653fe001b5c9682bde37.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ef0370c80915653fe001b5c9682bde37.exe"C:\Users\Admin\AppData\Local\Temp\ef0370c80915653fe001b5c9682bde37.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ef0370c80915653fe001b5c9682bde37.exeC:\Users\Admin\AppData\Local\Temp\ef0370c80915653fe001b5c9682bde37.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\ef0370c80915653fe001b5c9682bde37.exeC:\Users\Admin\AppData\Local\Temp\ef0370c80915653fe001b5c9682bde37.exe2⤵
- Loads dropped DLL
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2952 -s 18043⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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\ProgramData\mozglue.dllMD5
8f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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\ProgramData\nss3.dllMD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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memory/2952-122-0x0000000000400000-0x00000000004A1000-memory.dmpFilesize
644KB
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memory/2952-123-0x000000000046B77D-mapping.dmp
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memory/2952-124-0x0000000000400000-0x00000000004A1000-memory.dmpFilesize
644KB
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memory/3128-114-0x0000000000120000-0x0000000000121000-memory.dmpFilesize
4KB
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memory/3128-116-0x0000000005090000-0x0000000005091000-memory.dmpFilesize
4KB
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memory/3128-117-0x0000000004C30000-0x0000000004C31000-memory.dmpFilesize
4KB
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memory/3128-118-0x0000000004BF0000-0x0000000004BF1000-memory.dmpFilesize
4KB
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memory/3128-119-0x0000000004B90000-0x000000000508E000-memory.dmpFilesize
5.0MB
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memory/3128-120-0x0000000005AC0000-0x0000000005AC1000-memory.dmpFilesize
4KB
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memory/3128-121-0x0000000004E70000-0x0000000004E8C000-memory.dmpFilesize
112KB