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Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
19/09/2024, 15:52
Static task
static1
Behavioral task
behavioral1
Sample
35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.exe
Resource
win10v2004-20240802-en
General
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Target
35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.exe
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Size
53KB
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MD5
f2690890b5e7c749a16e734cdbbdce00
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SHA1
1d439f1acbd6a5f2884787e3d3e221377d62dd51
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SHA256
35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153
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SHA512
328eafcb645331bf02d1fe1048a309abbad9475ee3a50a9ed75c56e7e1070a6077bbf5339aa16ca799702e12b0c5579312a054b46d144cbcde3f657337dedb3c
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SSDEEP
1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIm:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVU
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2540 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 2540 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.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 35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 940 wrote to memory of 2540 940 35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.exe 31 PID 940 wrote to memory of 2540 940 35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.exe 31 PID 940 wrote to memory of 2540 940 35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.exe 31 PID 940 wrote to memory of 2540 940 35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.exe"C:\Users\Admin\AppData\Local\Temp\35f1a1d2a07cf8e2b6ddbda97cc46f23f19c576c49fce088663e6e4cb039d153N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:940 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
PID:2540
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
53KB
MD5d85d9a3901619384ace7d304ae91ffb6
SHA15b195782a0334311388b074bb28ba14a3eda84de
SHA25662509da5151966695626b1c8f9c289a6a574ffc4d582a3185505f7c24416f5eb
SHA512b2eb303e49ffa429d9619e9a1bb6aae415241e1ce9b670ea5b3192125cfc50102aea6b3b9c27cbcc0ad1354429c6cc6baa44686bec66e3a26d5786f35805e11b