Analysis
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max time kernel
90s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 06:55
Static task
static1
Behavioral task
behavioral1
Sample
c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe
Resource
win7-20220414-en
General
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Target
c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe
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Size
1.5MB
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MD5
879bdb1fc2d0cbb8f7882345063f045c
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SHA1
d2f59f783b1126df4b3c1d5f70ad7b173685a02f
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SHA256
c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc
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SHA512
aaa8c62adb2a72a64b349b5b03cb55a1d5dde10419ad372808235191a8e1a726fec71f11b4fcc235a65e43bd7e413139585ac2dbe43f5c3ee21639768ae27eba
Malware Config
Extracted
vidar
52.2
1326
https://t.me/netflixaccsfree
https://mastodon.social/@ronxik12
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profile_id
1326
Signatures
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suricata: ET MALWARE Vidar/Arkei/Megumin Stealer Keywords Retrieved
suricata: ET MALWARE Vidar/Arkei/Megumin Stealer Keywords Retrieved
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suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer
suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer
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Vidar Stealer 4 IoCs
Processes:
resource yara_rule behavioral2/memory/1596-136-0x0000000000400000-0x0000000000453000-memory.dmp family_vidar behavioral2/memory/1596-137-0x0000000000400000-0x0000000000453000-memory.dmp family_vidar behavioral2/memory/1596-138-0x0000000000400000-0x0000000000453000-memory.dmp family_vidar behavioral2/memory/1596-139-0x0000000000400000-0x0000000000453000-memory.dmp family_vidar -
Loads dropped DLL 2 IoCs
Processes:
InstallUtil.exepid process 1596 InstallUtil.exe 1596 InstallUtil.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Suspicious use of SetThreadContext 1 IoCs
Processes:
c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exedescription pid process target process PID 4900 set thread context of 1596 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe InstallUtil.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 InstallUtil.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString InstallUtil.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 884 timeout.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 4792 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 18 IoCs
Processes:
c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exeInstallUtil.exepid process 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe 1596 InstallUtil.exe 1596 InstallUtil.exe 1596 InstallUtil.exe 1596 InstallUtil.exe 1596 InstallUtil.exe 1596 InstallUtil.exe 1596 InstallUtil.exe 1596 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 4792 taskkill.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exeInstallUtil.execmd.exedescription pid process target process PID 4900 wrote to memory of 1596 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe InstallUtil.exe PID 4900 wrote to memory of 1596 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe InstallUtil.exe PID 4900 wrote to memory of 1596 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe InstallUtil.exe PID 4900 wrote to memory of 1596 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe InstallUtil.exe PID 4900 wrote to memory of 1596 4900 c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe InstallUtil.exe PID 1596 wrote to memory of 2688 1596 InstallUtil.exe cmd.exe PID 1596 wrote to memory of 2688 1596 InstallUtil.exe cmd.exe PID 1596 wrote to memory of 2688 1596 InstallUtil.exe cmd.exe PID 2688 wrote to memory of 4792 2688 cmd.exe taskkill.exe PID 2688 wrote to memory of 4792 2688 cmd.exe taskkill.exe PID 2688 wrote to memory of 4792 2688 cmd.exe taskkill.exe PID 2688 wrote to memory of 884 2688 cmd.exe timeout.exe PID 2688 wrote to memory of 884 2688 cmd.exe timeout.exe PID 2688 wrote to memory of 884 2688 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe"C:\Users\Admin\AppData\Local\Temp\c37ab7fc4b65b54fcb9c3c6493a94ae57e32b6a9fe2c6b61f835e7c5aed744dc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im InstallUtil.exe /f & timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe" & del C:\ProgramData\*.dll & exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im InstallUtil.exe /f4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\timeout.exetimeout /t 64⤵
- 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.dllFilesize
326KB
MD5ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
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C:\ProgramData\mozglue.dllFilesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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C:\ProgramData\mozglue.dllFilesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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C:\ProgramData\msvcp140.dllFilesize
429KB
MD5109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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C:\ProgramData\nss3.dllFilesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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C:\ProgramData\nss3.dllFilesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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C:\ProgramData\softokn3.dllFilesize
141KB
MD5a2ee53de9167bf0d6c019303b7ca84e5
SHA12a3c737fa1157e8483815e98b666408a18c0db42
SHA25643536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083
SHA51245b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8
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C:\ProgramData\vcruntime140.dllFilesize
81KB
MD57587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
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memory/884-163-0x0000000000000000-mapping.dmp
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memory/1596-137-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1596-138-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1596-139-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1596-140-0x0000000060900000-0x0000000060992000-memory.dmpFilesize
584KB
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memory/1596-134-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1596-136-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1596-133-0x0000000000000000-mapping.dmp
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memory/2688-161-0x0000000000000000-mapping.dmp
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memory/4792-162-0x0000000000000000-mapping.dmp
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memory/4900-131-0x000000000C410000-0x000000000C78B000-memory.dmpFilesize
3.5MB
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memory/4900-132-0x000000000C410000-0x000000000C78B000-memory.dmpFilesize
3.5MB
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memory/4900-130-0x0000000002708000-0x0000000002883000-memory.dmpFilesize
1.5MB