Analysis
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max time kernel
119s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
27/09/2024, 06:33
Static task
static1
Behavioral task
behavioral1
Sample
ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155N.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155N.exe
Resource
win10v2004-20240802-en
General
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Target
ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155N.exe
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Size
42KB
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MD5
56c4fb43e137bab46d835af79e0804f0
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SHA1
e232f9d884dc2d50e062ea27e02655e31cc4644d
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SHA256
ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155
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SHA512
2bb9923bbfb899fd6ba6be1251b964a476396c26a2c6ff594e9d10a69e5251bdbb2dbaad81f7dcc5139cc4db47945da61d76895cd635c687570f115a307f657f
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SSDEEP
768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhd:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wY9
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2456 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 2456 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155N.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155N.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 ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2608 wrote to memory of 2456 2608 ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155N.exe 82 PID 2608 wrote to memory of 2456 2608 ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155N.exe 82 PID 2608 wrote to memory of 2456 2608 ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155N.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155N.exe"C:\Users\Admin\AppData\Local\Temp\ec4e71ab4f5dc24d7ed20e94d7cd5842d389cdc8391fe734f51ab55d4adc9155N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2608 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2456
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
43KB
MD5585c24c840f493c36d5b1b33b720ca57
SHA1a87a02b3d9ffefdc4ea175bec8043a8cc660eed1
SHA256e837727de91f7ad1f0758a5f0fd62fdd370d03324c9aa5712ac22c126f896c64
SHA5120cbe930b99b1788219e06f491606b16749da4035d5788b44b9b9b0180f3ac4f27a1d489af77ed246667f6474c62861e22acba7fd663f981c7435cc84039a33f5