Analysis
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max time kernel
145s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
27-12-2023 02:07
Static task
static1
Behavioral task
behavioral1
Sample
d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838.exe
Resource
win10v2004-20231215-en
General
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Target
d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838.exe
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Size
4.9MB
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MD5
f836f277cbcadfecfc988bf350d410c3
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SHA1
f9a66d7876a6eb09763e0705beaa999d99f53754
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SHA256
d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838
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SHA512
ac284e90bf72d564ceaeda28383efc8793f286002d2d7ae37f08f05a9170faa5f77a8e741cb60fabb1f48f9abc769070fc3620fa9c5d7dfce60029b6d58c8280
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SSDEEP
12288:D6BeSpuojQEv1E729k4nRQ/ceb5WdWOeoP3/F+2nGr6A5zuzhGlC5LcB+cVgeMtb:E0yLW2mudcocIE
Malware Config
Extracted
marsstealer
Default
moscow-post.com/xaoniu/server/waungowangued/g.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:
d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838.exe -
Executes dropped EXE 1 IoCs
Processes:
Q07.exepid process 4792 Q07.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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3980 4792 WerFault.exe Q07.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838.exedescription pid process target process PID 2440 wrote to memory of 4792 2440 d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838.exe Q07.exe PID 2440 wrote to memory of 4792 2440 d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838.exe Q07.exe PID 2440 wrote to memory of 4792 2440 d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838.exe Q07.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838.exe"C:\Users\Admin\AppData\Local\Temp\d38bc9871b0eba08a6b77314a6d3fdc94531315c2659ea60d8d23b4450ed3838.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Adobe\Q07.exe"C:\Users\Admin\AppData\Roaming\Adobe\Q07.exe"2⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 14043⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4792 -ip 47921⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\Adobe\Q07.exeFilesize
159KB
MD51f51c4bdd8bd5b81fe2638ffa85fd5d2
SHA143146ce6867ba788dc50ddfe1d9ec4d89aafd859
SHA256e7dcfe91d1f3c1b1d33b8f7eae174999b04faec7825474baf846aaa408d97c38
SHA5127f0d34c1ccf39cb0c5600507b2b00185e097a6423cc622b66659cd46aef6bb55b6a5806971a816eab3f990b8099cdc9a606cacab49a1f6bd002fcf9a2964ca98
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memory/2440-0-0x00000000006D0000-0x0000000000762000-memory.dmpFilesize
584KB
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memory/2440-1-0x0000000074400000-0x0000000074BB0000-memory.dmpFilesize
7.7MB
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memory/2440-12-0x0000000074400000-0x0000000074BB0000-memory.dmpFilesize
7.7MB
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memory/4792-11-0x0000000000400000-0x000000000043D000-memory.dmpFilesize
244KB
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memory/4792-14-0x0000000000400000-0x000000000043D000-memory.dmpFilesize
244KB