Analysis
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max time kernel
158s -
max time network
164s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
submitted
05-08-2022 15:52
Static task
static1
Behavioral task
behavioral1
Sample
10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe
Resource
win10v2004-20220721-en
General
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Target
10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe
Malware Config
Extracted
marsstealer
Default
atomic-wallet.net/marsword/gate.php
Signatures
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Mars Stealer
An infostealer written in C++ based on other infostealers.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation 10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe -
Loads dropped DLL 2 IoCs
Processes:
10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exepid process 804 10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe 804 10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.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:
10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2428 timeout.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.execmd.exedescription pid process target process PID 804 wrote to memory of 4776 804 10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe cmd.exe PID 804 wrote to memory of 4776 804 10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe cmd.exe PID 804 wrote to memory of 4776 804 10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe cmd.exe PID 4776 wrote to memory of 2428 4776 cmd.exe timeout.exe PID 4776 wrote to memory of 2428 4776 cmd.exe timeout.exe PID 4776 wrote to memory of 2428 4776 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe"C:\Users\Admin\AppData\Local\Temp\10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\10afe233525aaf99064e4e444f11a8fc01f8b9f508e4f123fd76b314a6d360f9.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- 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\mozglue.dllFilesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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C:\ProgramData\nss3.dllFilesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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memory/804-130-0x0000000000400000-0x000000000043D000-memory.dmpFilesize
244KB
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memory/804-131-0x0000000060900000-0x0000000060992000-memory.dmpFilesize
584KB
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memory/804-153-0x0000000000400000-0x000000000043D000-memory.dmpFilesize
244KB
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memory/2428-154-0x0000000000000000-mapping.dmp
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memory/4776-152-0x0000000000000000-mapping.dmp