Analysis
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max time kernel
119s -
max time network
100s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
18-08-2024 11:46
Static task
static1
Behavioral task
behavioral1
Sample
b384ded3cfe99213876d10c9e3266140N.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
b384ded3cfe99213876d10c9e3266140N.exe
Resource
win10v2004-20240802-en
General
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Target
b384ded3cfe99213876d10c9e3266140N.exe
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Size
46KB
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MD5
b384ded3cfe99213876d10c9e3266140
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SHA1
2c8fa603bf972fa2a5cd3c21c4be308259a80363
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SHA256
5c6b81822a96dc575235110e77ac2dd41df73bb95799052d652d03b6703bf582
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SHA512
961c0db64c122e2482a5d52a6762efa381fdc5c1223e72f1a978f400b81276164c21fffec62f0e32b81a9d5e6b80c98c2328be27ea990405cb0d97f8b7749cfc
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SSDEEP
768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNh6:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYa
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 4888 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 4888 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" b384ded3cfe99213876d10c9e3266140N.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe b384ded3cfe99213876d10c9e3266140N.exe -
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 b384ded3cfe99213876d10c9e3266140N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2872 wrote to memory of 4888 2872 b384ded3cfe99213876d10c9e3266140N.exe 84 PID 2872 wrote to memory of 4888 2872 b384ded3cfe99213876d10c9e3266140N.exe 84 PID 2872 wrote to memory of 4888 2872 b384ded3cfe99213876d10c9e3266140N.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\b384ded3cfe99213876d10c9e3266140N.exe"C:\Users\Admin\AppData\Local\Temp\b384ded3cfe99213876d10c9e3266140N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4888
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46KB
MD5e23cab575fcba71bb7709a1373ad1f72
SHA161d401a3df9cb995b785bcf19f5ef2ef3b030a11
SHA256a4ab16422ced7ecf98a8c56eb6ec247b6f8e7f7e45e1bf5f7a9ea204fa2f2c33
SHA512442d37185e421a7aefbca0bdf99b3b8bddd99100980f104a76bdc7d07e779e5e159404d3eefff25083e752669c3ddf4214a47da6bc35bb9cf81f71b0ca2b6bb6