Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
23-08-2024 23:56
Static task
static1
Behavioral task
behavioral1
Sample
9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26.exe
Resource
win10v2004-20240802-en
General
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Target
9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26.exe
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Size
52KB
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MD5
ad3a8cdf3a1fa0e009ced18096d4d1cc
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SHA1
c37f99a4f208fb7b0f32581df8ea1a04326cdc3a
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SHA256
9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26
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SHA512
17ea477e9ded5e95676bf668c02ff1ea93f1f9693d9644ca67f6d29a841ac48412810636691e68e6a8ed599c17aefdc38a9967c038221f252fefafb64242a960
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SSDEEP
1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhId:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVT
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 1832 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 1832 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26.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 9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 768 wrote to memory of 1832 768 9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26.exe 84 PID 768 wrote to memory of 1832 768 9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26.exe 84 PID 768 wrote to memory of 1832 768 9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26.exe"C:\Users\Admin\AppData\Local\Temp\9b11f4fe393fbae5b32f126a4acc520f5fb097c977fbd989a2c36b7fb9f6bb26.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:768 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1832
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
52KB
MD505241cf5d66c838bd96cb5be5e402845
SHA182a0425598b223ea14fdc3a96d97b8fcd347f778
SHA2569fa2910ce2ff7fbc8d6018b3dcecbaf11d195459ca7511c690bcc46b7a1bf558
SHA5121d0eb7b88c11b10774b71c3c85ef525110ca02b57f4e704fd9921c67fb167db0264461a783a3881a1d5190826f1a390cd3ada45bcfc374f09cb2060eed92e012