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Analysis
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max time kernel
87s -
max time network
180s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
17/06/2022, 09:25
Static task
static1
Behavioral task
behavioral1
Sample
dcae989d2c708fa2b73374698b1a8acc.exe
Resource
win7-20220414-en
General
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Target
dcae989d2c708fa2b73374698b1a8acc.exe
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Size
336KB
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MD5
dcae989d2c708fa2b73374698b1a8acc
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SHA1
5846cc14d013c09c1f86796aba571ee65daa2d7e
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SHA256
edfaf15aa4e28a3891b08e7e948f0d08680b492b8ba4ca464ad1b68df0190719
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SHA512
4216de9f3641ba425cab752c769117f8c52e0087af09ae0413b2afcc2d82cb77ce1da0c5508cfcfa503de8f8f1c4d0b19fe263b65056b69c4de746874e72a0d1
Malware Config
Extracted
arkei
Default
Signatures
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suricata: ET MALWARE Win32/Vidar Variant/Mars CnC Activity (GET)
suricata: ET MALWARE Win32/Vidar Variant/Mars CnC Activity (GET)
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suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil
suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation dcae989d2c708fa2b73374698b1a8acc.exe -
Loads dropped DLL 2 IoCs
pid Process 1000 dcae989d2c708fa2b73374698b1a8acc.exe 1000 dcae989d2c708fa2b73374698b1a8acc.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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Program crash 1 IoCs
pid pid_target Process procid_target 2448 1000 WerFault.exe 80 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 dcae989d2c708fa2b73374698b1a8acc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString dcae989d2c708fa2b73374698b1a8acc.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4916 timeout.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1000 wrote to memory of 1248 1000 dcae989d2c708fa2b73374698b1a8acc.exe 87 PID 1000 wrote to memory of 1248 1000 dcae989d2c708fa2b73374698b1a8acc.exe 87 PID 1000 wrote to memory of 1248 1000 dcae989d2c708fa2b73374698b1a8acc.exe 87 PID 1248 wrote to memory of 4916 1248 cmd.exe 90 PID 1248 wrote to memory of 4916 1248 cmd.exe 90 PID 1248 wrote to memory of 4916 1248 cmd.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\dcae989d2c708fa2b73374698b1a8acc.exe"C:\Users\Admin\AppData\Local\Temp\dcae989d2c708fa2b73374698b1a8acc.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1000 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\dcae989d2c708fa2b73374698b1a8acc.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:1248 -
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
PID:4916
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1000 -s 15402⤵
- Program crash
PID:2448
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1000 -ip 10001⤵PID:4948
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66