Analysis
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max time kernel
119s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
09/11/2024, 20:59
Static task
static1
Behavioral task
behavioral1
Sample
c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe
Resource
win10v2004-20241007-en
General
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Target
c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe
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Size
79KB
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MD5
f840dff5cfeb6e28b87219bdb8b097f0
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SHA1
7afe90ee32aac02d8ee646aef6e90d4faa8f5bbb
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SHA256
c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18a
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SHA512
1b478c3e4418d2f789dc010cb27987dea1e044a04cbe7440b084d7638e175fb7abd8ad7d855a1a9b74e9a421f3320c2119e3a23b61bc32b0d971fe117c2ddb0c
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SSDEEP
1536:86RAo0ej2d6rnJwwvlNlIUBvsI7hrhEh9cpDN43vBKMvWPqH5kYhpvEHchVvhESC:xAo1lOwvlNlXBvsI7hrhEh9cpDN43vB6
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2360 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 2360 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe File created C:\Windows\HidePlugin.dll microsofthelp.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 c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2268 wrote to memory of 2360 2268 c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe 31 PID 2268 wrote to memory of 2360 2268 c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe 31 PID 2268 wrote to memory of 2360 2268 c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe 31 PID 2268 wrote to memory of 2360 2268 c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe"C:\Users\Admin\AppData\Local\Temp\c499fb0bb29f94bba2402b3f9af126daf6dde4f2fdbb25807ebf4932a083c18aN.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2268 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Windows directory
PID:2360
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
79KB
MD50786d204e1ec24a4015605eae07b199b
SHA19e689c164fcf3276b46f1d2539732758d7761137
SHA256c8a9aa875d27705ceb39bb47b08609f267be4792825a8a6aea943867fd3a7a2f
SHA512c477887f200832a20f200dcbf7c7f10f6602fcabcb8b761625e6ee97bbb52577c51ff62be3247f8afd5f15dc15754fc593cca6eb951f8f88b1fe2ef90e9873ba