Analysis
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max time kernel
149s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
29/08/2024, 02:47
Static task
static1
Behavioral task
behavioral1
Sample
c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe
Resource
win10v2004-20240802-en
General
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Target
c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe
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Size
45KB
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MD5
0882ac46e567d5133cefc6ce2370ebff
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SHA1
92ee1e6e2287a7199b613126fb611e9de551462b
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SHA256
c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c
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SHA512
e466578801ccf70081f08c7d1b07ae22ea055686622ae86d9ec0d3ae520b52f7000163e26643ac1435b78cde2799b45e73614835fcefb8db82385de5ca4e86bf
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SSDEEP
768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhb:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wY7
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 3060 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 3060 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 900 wrote to memory of 3060 900 c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe 30 PID 900 wrote to memory of 3060 900 c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe 30 PID 900 wrote to memory of 3060 900 c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe 30 PID 900 wrote to memory of 3060 900 c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe"C:\Users\Admin\AppData\Local\Temp\c21e2f92b479313663527746b8f24a930485c231ecce34e956ad2fc9c7e2163c.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:900 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
PID:3060
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
45KB
MD5cb0185555008dae73a8ed3dbaf265221
SHA13412de911c7b75d8d7a917a4cf61f38ea349ba6e
SHA2567657b5e52e56a105083214a7271a7b7fa0147ff394dcd9e926b5d31f2c224330
SHA512c8f900745f6fc13f158ed44322bbecd1d16c9eeef5e1652be5ea799046f56b99dc1fe5855eeda51c2ed2cd3aafec11afa45e8c1c35e6c2a17986d0516ef7372d