Overview
overview
10Static
static
80x00030000...22.exe
windows7_x64
0x00030000...22.exe
windows10_x64
100x00030000...35.exe
windows7_x64
100x00030000...35.exe
windows10_x64
70x00030000...41.exe
windows7_x64
80x00030000...41.exe
windows10_x64
80x00030000...61.exe
windows7_x64
100x00030000...61.exe
windows10_x64
100x00030000...51.exe
windows7_x64
100x00030000...51.exe
windows10_x64
100x00030000...56.exe
windows7_x64
100x00030000...56.exe
windows10_x64
100x00030000...88.exe
windows7_x64
10x00030000...88.exe
windows10_x64
10x00040000...27.exe
windows7_x64
100x00040000...27.exe
windows10_x64
100x00040000...63.exe
windows7_x64
0x00040000...63.exe
windows10_x64
10Analysis
-
max time kernel
723s -
max time network
1460s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
08-07-2021 11:17
Static task
static1
Behavioral task
behavioral1
Sample
0x00030000000130db-122.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
0x00030000000130db-122.exe
Resource
win10v20210410
Behavioral task
behavioral3
Sample
0x00030000000130dc-135.exe
Resource
win7v20210410
Behavioral task
behavioral4
Sample
0x00030000000130dc-135.exe
Resource
win10v20210408
Behavioral task
behavioral5
Sample
0x00030000000130dd-141.exe
Resource
win7v20210410
Behavioral task
behavioral6
Sample
0x00030000000130dd-141.exe
Resource
win10v20210408
Behavioral task
behavioral7
Sample
0x00030000000130de-161.exe
Resource
win7v20210410
Behavioral task
behavioral8
Sample
0x00030000000130de-161.exe
Resource
win10v20210408
Behavioral task
behavioral9
Sample
0x00030000000130df-151.exe
Resource
win7v20210410
Behavioral task
behavioral10
Sample
0x00030000000130df-151.exe
Resource
win10v20210410
Behavioral task
behavioral11
Sample
0x00030000000130e1-156.exe
Resource
win7v20210408
Behavioral task
behavioral12
Sample
0x00030000000130e1-156.exe
Resource
win10v20210410
Behavioral task
behavioral13
Sample
0x000300000001310b-88.exe
Resource
win7v20210408
Behavioral task
behavioral14
Sample
0x000300000001310b-88.exe
Resource
win10v20210410
Behavioral task
behavioral15
Sample
0x00040000000130bf-127.exe
Resource
win7v20210408
Behavioral task
behavioral16
Sample
0x00040000000130bf-127.exe
Resource
win10v20210410
Behavioral task
behavioral17
Sample
0x00040000000130e0-63.exe
Resource
win7v20210408
General
-
Target
0x00040000000130bf-127.exe
-
Size
686KB
-
MD5
a957a80658f31c8fc864755deb2a0ca7
-
SHA1
8692ad674194f0901ee776ba99704f061babda95
-
SHA256
99117569330d3694ed281e0c5414c23aa33a5eb370494febb267925dd4a62208
-
SHA512
b46056d3971718a7770fef54d8a2af34363eb2e785f5506e9cb261c331954d12b810e46b297ebb98ccdf7f9bde73290d46491aa7a3276bdef51869651f7105af
Malware Config
Extracted
vidar
39.4
706
https://sergeevih43.tumblr.com
-
profile_id
706
Signatures
-
Vidar Stealer 2 IoCs
Processes:
resource yara_rule behavioral16/memory/3876-114-0x0000000000AF0000-0x0000000000B8D000-memory.dmp family_vidar behavioral16/memory/3876-115-0x0000000000400000-0x0000000000949000-memory.dmp family_vidar -
Downloads MZ/PE file
-
Loads dropped DLL 2 IoCs
Processes:
0x00040000000130bf-127.exepid process 3876 0x00040000000130bf-127.exe 3876 0x00040000000130bf-127.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:
0x00040000000130bf-127.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 0x00040000000130bf-127.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 0x00040000000130bf-127.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3844 timeout.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 3980 taskkill.exe -
Processes:
0x00040000000130bf-127.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 0x00040000000130bf-127.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 0x00040000000130bf-127.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
0x00040000000130bf-127.exepid process 3876 0x00040000000130bf-127.exe 3876 0x00040000000130bf-127.exe 3876 0x00040000000130bf-127.exe 3876 0x00040000000130bf-127.exe 3876 0x00040000000130bf-127.exe 3876 0x00040000000130bf-127.exe 3876 0x00040000000130bf-127.exe 3876 0x00040000000130bf-127.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 3980 taskkill.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
0x00040000000130bf-127.execmd.exedescription pid process target process PID 3876 wrote to memory of 4008 3876 0x00040000000130bf-127.exe cmd.exe PID 3876 wrote to memory of 4008 3876 0x00040000000130bf-127.exe cmd.exe PID 3876 wrote to memory of 4008 3876 0x00040000000130bf-127.exe cmd.exe PID 4008 wrote to memory of 3980 4008 cmd.exe taskkill.exe PID 4008 wrote to memory of 3980 4008 cmd.exe taskkill.exe PID 4008 wrote to memory of 3980 4008 cmd.exe taskkill.exe PID 4008 wrote to memory of 3844 4008 cmd.exe timeout.exe PID 4008 wrote to memory of 3844 4008 cmd.exe timeout.exe PID 4008 wrote to memory of 3844 4008 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0x00040000000130bf-127.exe"C:\Users\Admin\AppData\Local\Temp\0x00040000000130bf-127.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im 0x00040000000130bf-127.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\0x00040000000130bf-127.exe" & del C:\ProgramData\*.dll & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im 0x00040000000130bf-127.exe /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\ProgramData\freebl3.dllMD5
ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
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C:\ProgramData\mozglue.dllMD5
8f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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C:\ProgramData\msvcp140.dllMD5
109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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C:\ProgramData\nss3.dllMD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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C:\ProgramData\softokn3.dllMD5
a2ee53de9167bf0d6c019303b7ca84e5
SHA12a3c737fa1157e8483815e98b666408a18c0db42
SHA25643536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083
SHA51245b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8
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C:\ProgramData\vcruntime140.dllMD5
7587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
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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/3844-120-0x0000000000000000-mapping.dmp
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memory/3876-114-0x0000000000AF0000-0x0000000000B8D000-memory.dmpFilesize
628KB
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memory/3876-115-0x0000000000400000-0x0000000000949000-memory.dmpFilesize
5.3MB
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memory/3980-119-0x0000000000000000-mapping.dmp
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memory/4008-118-0x0000000000000000-mapping.dmp