Analysis
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max time kernel
120s -
max time network
96s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
09/11/2024, 21:58
Static task
static1
Behavioral task
behavioral1
Sample
b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7N.exe
Resource
win10v2004-20241007-en
General
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Target
b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7N.exe
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Size
45KB
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MD5
72e971e5e10af3407d1a376107aad690
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SHA1
1410199f541cb2790d2f06f053100d1138020cf8
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SHA256
b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7
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SHA512
079f0ecbe20a2b3be557d4237fe35f032804ce251e6f6aeaed131d87530e2c7e43f04d99faf8b1329e785f152702fa7329302ec9b1c1263606dde2ee9b6d0cf2
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SSDEEP
768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjUvJw3/c:e6q10k0EFjed6rqJ+6vghzwYu7vih9GP
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 3732 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 3732 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7N.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7N.exe File created C:\Windows\HidePlugin.dll microsofthelp.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 microsofthelp.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7N.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3992 wrote to memory of 3732 3992 b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7N.exe 85 PID 3992 wrote to memory of 3732 3992 b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7N.exe 85 PID 3992 wrote to memory of 3732 3992 b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7N.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7N.exe"C:\Users\Admin\AppData\Local\Temp\b673172d8ace2327ebab9999782e5e764b1a96d63efbd3bbd990d69654727ad7N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3992 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3732
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
45KB
MD518cd75ec7055e795d9e2670aca02fc3f
SHA1d935ffcd200828c533639af3b5788c7c8ba11c50
SHA256e39ed6608ca9493208189b81e44f8a2caf323e96d0cba08881032b02185ac6ab
SHA5126530e0f8a7535ffc28617735d94eb2a2ad57ad54e57961e567de1a566ede6003ad0a7937ee6fb2e1f53509709a3544a2e0c455cadb58854968d28405503c9e40