Analysis
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max time kernel
119s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
18-04-2024 01:22
Static task
static1
Behavioral task
behavioral1
Sample
5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe
Resource
win10v2004-20240412-en
General
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Target
5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe
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Size
1.0MB
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MD5
588fe99f2631db84a27bbfceca342f8c
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SHA1
84349b654c2f549d85dff6c3a548c7e11f79a5e3
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SHA256
5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a
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SHA512
d00d71d1d1bb8699727914a39190414f332c5be706f66b39ad1b1b8044c2ee7aec17511d784c864660c4c5230d51f69fc577b79ddc37d4c453a66f0bb25d9dfd
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SSDEEP
12288:Me/cwY1icfinL+r3FI4PpJEtpnxnI+UejPFnOVy/:/YTr1IDtpnv9P
Malware Config
Extracted
marsstealer
Default
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:
5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation 5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe -
Executes dropped EXE 1 IoCs
Processes:
HQUU7B0V.exepid process 2664 HQUU7B0V.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
Processes:
5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exedescription pid process target process PID 3640 wrote to memory of 2664 3640 5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe HQUU7B0V.exe PID 3640 wrote to memory of 2664 3640 5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe HQUU7B0V.exe PID 3640 wrote to memory of 2664 3640 5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe HQUU7B0V.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe"C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3640 -
C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\HQUU7B0V.exe"C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\HQUU7B0V.exe"2⤵
- Executes dropped EXE
PID:2664
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\HQUU7B0V.exe
Filesize159KB
MD53f2f75660ddca3660f254222ec2e54d9
SHA19e5710c00fc26b4d26d95c644040f56b652708b0
SHA256ffe8a2116f63f9d5cdb408f3d1e8f476ea595b7323bc95808e33b45084f2e14f
SHA512fee657800f455a2026a5ba4fb7e424bf52e77d1922c91fadd2f5a4284269eaa93c860065da13a439ea6c79ea855ecc58b99b9a293b6e64e91cc2dffd5ef92bbd