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Analysis
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max time kernel
143s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
04/04/2024, 23:09
Static task
static1
Behavioral task
behavioral1
Sample
processlassosetup64.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
processlassosetup64.exe
Resource
win10v2004-20240226-en
General
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Target
processlassosetup64.exe
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Size
4.9MB
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MD5
611e8af3116aa80fafc76d0501fd172e
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SHA1
0a82193d9485da25f424c6ff28bdde597fe023a6
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SHA256
8faff89242e941f569ee0852ba3463f26741d68b22627d11555b6cee5ef27676
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SHA512
1ad6fa695b89e9436c3953609337adfa01f6436e3714bc9268c2a3252fb967d9916c121c611f7416d5fe265a46f5fe891f07d02a02d27a8d6664a2fc0705acb3
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SSDEEP
6144:1Ss9IYGOxz2RRKOOCxU873xCswRnBOGLeQ5dBRRW6n5FkjdfJauy:t9/X12qOOCxj3x5whwQl2lauy
Malware Config
Extracted
marsstealer
Default
kenesrakishev.net/wp-load.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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation processlassosetup64.exe -
Executes dropped EXE 1 IoCs
pid Process 2608 3Z0EV4VTCR.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
pid pid_target Process procid_target 4380 2608 WerFault.exe 96 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1992 wrote to memory of 2608 1992 processlassosetup64.exe 96 PID 1992 wrote to memory of 2608 1992 processlassosetup64.exe 96 PID 1992 wrote to memory of 2608 1992 processlassosetup64.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\processlassosetup64.exe"C:\Users\Admin\AppData\Local\Temp\processlassosetup64.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1992 -
C:\ProgramData\3Z0EV4VTCR.exe"C:\ProgramData\3Z0EV4VTCR.exe"2⤵
- Executes dropped EXE
PID:2608 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2608 -s 18363⤵
- Program crash
PID:4380
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2608 -ip 26081⤵PID:4468
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:81⤵PID:116
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
159KB
MD53cc6ddf90e7492c803b3d20142b126cc
SHA19899b9c40227e604131018ca2f812edf2ef5a32b
SHA25649ab6b67e5bc75c556a1a8248f318943bc697209fdac3f02f2721ded1a375897
SHA512df8e9bb2c77ca4b3d7d22fb10adf4a93f23442d1712f5afad9df2b073bd4d95fb2c658844d6d30b86a79bccd44b4dcd491bd7a5a98b78797cd72c8c704ab0ec8