Analysis
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max time kernel
140s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
02-10-2024 13:41
Behavioral task
behavioral1
Sample
Build.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
Build.exe
Resource
win10v2004-20240802-en
General
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Target
Build.exe
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Size
18KB
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MD5
92d87c1c5d983e7aa3aa327e19a3f186
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SHA1
40af71cfe33e3c1fe2e2e8da012e47c43ca4ebfb
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SHA256
4498db4f469d538dee96374c65f8af004beec87381bec52bb1273ef6c939cb56
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SHA512
1d64f71d270ad8c899bb519267ac40a75af67a2b7a296d8cd0dc5530d53182bf703211be3e278859f888a2b95d0e0686ea364076df4b84bf2d65c8fe6c89e0ec
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SSDEEP
384:DEw7wknHOYXQdhLGPvCaV4pLS7OGQ8xy1CzcaXtQXkqAne:DEw7wkHOYEGPvCaV4pLzb1fa9QXk
Malware Config
Signatures
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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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ModiLoader Second Stage 2 IoCs
resource yara_rule behavioral2/memory/896-10-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 behavioral2/memory/3884-11-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 -
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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation Build.exe -
Executes dropped EXE 1 IoCs
pid Process 3884 AdobeART.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AdobeART = "C:\\Users\\Admin\\AppData\\Roaming\\AdobeART.exe" AdobeART.exe -
resource yara_rule behavioral2/memory/896-0-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/files/0x0009000000023484-5.dat upx behavioral2/memory/896-10-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/memory/3884-11-0x0000000000400000-0x0000000000414000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Build.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AdobeART.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 896 wrote to memory of 3884 896 Build.exe 82 PID 896 wrote to memory of 3884 896 Build.exe 82 PID 896 wrote to memory of 3884 896 Build.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\Build.exe"C:\Users\Admin\AppData\Local\Temp\Build.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:896 -
C:\Users\Admin\AppData\Roaming\AdobeART.exe"C:\Users\Admin\AppData\Roaming\AdobeART.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:3884
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
18KB
MD592d87c1c5d983e7aa3aa327e19a3f186
SHA140af71cfe33e3c1fe2e2e8da012e47c43ca4ebfb
SHA2564498db4f469d538dee96374c65f8af004beec87381bec52bb1273ef6c939cb56
SHA5121d64f71d270ad8c899bb519267ac40a75af67a2b7a296d8cd0dc5530d53182bf703211be3e278859f888a2b95d0e0686ea364076df4b84bf2d65c8fe6c89e0ec