Analysis
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max time kernel
119s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11/11/2024, 10:59
Static task
static1
Behavioral task
behavioral1
Sample
aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe
Resource
win10v2004-20241007-en
General
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Target
aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe
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Size
47KB
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MD5
2678a48f93135c5b8027af105bb6cebf
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SHA1
8be429b902d71d201dfc342159966886f9ce14c6
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SHA256
aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732
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SHA512
feda1dbe00987ceab99b069e52f0c53ec11bee22ed5d735448124076823f38c486db01b5155def6223caaba074bb12684033af9566c23227168c94fd4044716c
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SSDEEP
768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhR:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYx
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 3596 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 3596 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.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 aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4940 wrote to memory of 3596 4940 aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe 83 PID 4940 wrote to memory of 3596 4940 aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe 83 PID 4940 wrote to memory of 3596 4940 aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe"C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4940 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3596
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
47KB
MD5665616323c15cb52a66d7579129104b3
SHA15a99f450f406233c9de14c0707f126f1fccb4d39
SHA2561756835ca966f8166a053328db6836d0794b6d87750b077be58b1dc55ff1a2e6
SHA512be301d754bef437adf212bfc16dbbe3ea96c9e8e01a2f38ab4ae1e8fc841dea111ce65c24a118c9f2017d8259abffd6a1e78631aa17cedb5b1caa31dc780d1d6