Analysis
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max time kernel
83s -
max time network
95s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
29-04-2022 15:24
Static task
static1
Behavioral task
behavioral1
Sample
4.exe
Resource
win7-20220414-en
General
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Target
4.exe
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Size
335.3MB
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MD5
e9a3562f3851dd2dba27f90b5b2d15c0
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SHA1
98be930c6674cc31c9cf7efb656f7fadb320a273
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SHA256
e600b8ef36477ed37d924b1ba8deaadeab3275392ba0accd6329a11542adbaad
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SHA512
0cca077c8d12d7122b89dc1e6c60e13730e387fb194e6df6d64ae1ec9eb680d98251951d8a06d59c356d6c643fe9589be7ed22187306c47a15af8d5bf1e80740
Malware Config
Extracted
vidar
51.9
1281
https://koyu.space/@ronxik123
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profile_id
1281
Signatures
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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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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
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Vidar Stealer 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1696-71-0x00000000013A0000-0x0000000001AB5000-memory.dmp family_vidar behavioral1/memory/1696-72-0x00000000013A0000-0x0000000001AB5000-memory.dmp family_vidar behavioral1/memory/1696-73-0x00000000013A0000-0x0000000001AB5000-memory.dmp family_vidar behavioral1/memory/1696-74-0x00000000013A0000-0x0000000001AB5000-memory.dmp family_vidar behavioral1/memory/1696-75-0x00000000013A0000-0x0000000001AB5000-memory.dmp family_vidar behavioral1/memory/1696-77-0x00000000013A0000-0x0000000001AB5000-memory.dmp family_vidar -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
4.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 4.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 4.exe -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 1448 cmd.exe -
Loads dropped DLL 2 IoCs
Processes:
4.exepid process 1696 4.exe 1696 4.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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Processes:
4.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 4.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
4.exepid process 1696 4.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:
4.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 4.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 4.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1912 timeout.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 1376 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
4.exepid process 1696 4.exe 1696 4.exe 1696 4.exe 1696 4.exe 1696 4.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1376 taskkill.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
4.execmd.exedescription pid process target process PID 1696 wrote to memory of 1448 1696 4.exe cmd.exe PID 1696 wrote to memory of 1448 1696 4.exe cmd.exe PID 1696 wrote to memory of 1448 1696 4.exe cmd.exe PID 1696 wrote to memory of 1448 1696 4.exe cmd.exe PID 1448 wrote to memory of 1376 1448 cmd.exe taskkill.exe PID 1448 wrote to memory of 1376 1448 cmd.exe taskkill.exe PID 1448 wrote to memory of 1376 1448 cmd.exe taskkill.exe PID 1448 wrote to memory of 1376 1448 cmd.exe taskkill.exe PID 1448 wrote to memory of 1912 1448 cmd.exe timeout.exe PID 1448 wrote to memory of 1912 1448 cmd.exe timeout.exe PID 1448 wrote to memory of 1912 1448 cmd.exe timeout.exe PID 1448 wrote to memory of 1912 1448 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4.exe"C:\Users\Admin\AppData\Local\Temp\4.exe"1⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- 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 4.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\4.exe" & del C:\ProgramData\*.dll & exit2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im 4.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.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\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\softokn3.dllFilesize
141KB
MD5a2ee53de9167bf0d6c019303b7ca84e5
SHA12a3c737fa1157e8483815e98b666408a18c0db42
SHA25643536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083
SHA51245b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8
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C:\ProgramData\vcruntime140.dllFilesize
81KB
MD57587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
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\ProgramData\mozglue.dllFilesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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\ProgramData\nss3.dllFilesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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memory/1376-104-0x0000000000000000-mapping.dmp
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memory/1448-103-0x0000000000000000-mapping.dmp
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memory/1696-73-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-78-0x00000000776A0000-0x0000000077820000-memory.dmpFilesize
1.5MB
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memory/1696-67-0x0000000075270000-0x000000007538D000-memory.dmpFilesize
1.1MB
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memory/1696-68-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-69-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-70-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-71-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-72-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-54-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-74-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-75-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-76-0x0000000077190000-0x00000000771D7000-memory.dmpFilesize
284KB
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memory/1696-77-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-65-0x0000000077190000-0x00000000771D7000-memory.dmpFilesize
284KB
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memory/1696-79-0x0000000060900000-0x0000000060992000-memory.dmpFilesize
584KB
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memory/1696-66-0x0000000076150000-0x000000007615C000-memory.dmpFilesize
48KB
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memory/1696-64-0x0000000074CD0000-0x0000000074E60000-memory.dmpFilesize
1.6MB
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memory/1696-102-0x00000000750B0000-0x00000000750BC000-memory.dmpFilesize
48KB
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memory/1696-63-0x0000000075490000-0x00000000755EC000-memory.dmpFilesize
1.4MB
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memory/1696-59-0x00000000758C0000-0x000000007596C000-memory.dmpFilesize
688KB
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memory/1696-55-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-61-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-60-0x00000000002D0000-0x0000000000311000-memory.dmpFilesize
260KB
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memory/1696-58-0x0000000076171000-0x0000000076173000-memory.dmpFilesize
8KB
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memory/1696-57-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1696-56-0x00000000013A0000-0x0000000001AB5000-memory.dmpFilesize
7.1MB
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memory/1912-105-0x0000000000000000-mapping.dmp