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Analysis
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max time kernel
114s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
04/11/2024, 07:59
Behavioral task
behavioral1
Sample
52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe
Resource
win7-20240903-en
General
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Target
52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe
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Size
69KB
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MD5
f9abc48b0f85f12ea5b7e89fecdd9840
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SHA1
5990c39a8a55085e2a4135370dea95b94dfb7ded
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SHA256
52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6f
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SHA512
e4ec7e40b573dbd6972cf473a595ac8f41e9541ef2fd21a956b3f6ca07b4e264b1b90b34c5dda1650c83c5b7b2df4ca4929727ae47c27be5573ff7c7199a3c80
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SSDEEP
1536:PS5NzElzEF7D3EbZvzAlEM+bl7upO6bWO0Lxv:PS5dElAp3Elbez+bloWO09v
Malware Config
Extracted
xworm
office.mscdn.org:7009
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install_file
USB.exe
Signatures
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Detect Xworm Payload 1 IoCs
resource yara_rule behavioral1/memory/2372-1-0x0000000000F30000-0x0000000000F48000-memory.dmp family_xworm -
Xworm family
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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2376 powershell.exe 2764 powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2376 powershell.exe 2764 powershell.exe 2372 52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2372 52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe Token: SeDebugPrivilege 2376 powershell.exe Token: SeDebugPrivilege 2764 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2372 52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2372 wrote to memory of 2376 2372 52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe 31 PID 2372 wrote to memory of 2376 2372 52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe 31 PID 2372 wrote to memory of 2376 2372 52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe 31 PID 2372 wrote to memory of 2764 2372 52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe 33 PID 2372 wrote to memory of 2764 2372 52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe 33 PID 2372 wrote to memory of 2764 2372 52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe"C:\Users\Admin\AppData\Local\Temp\52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2376
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2764
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize7KB
MD590f2e9d9cba66577ed1f456602ee4be5
SHA154059836f7c98663f871b4f393c2a90049387f23
SHA25605a89daabfdf2966e42d31a3a6a7034360de61f9ddb6bf3695fd6928552f6603
SHA5120b5fda97608abc45857b66669b1d252067a8d4c7c2f33683efe2a4497c1f259d49bd5304094a8748f4dbdbff2633e3608444110c36f2213088c4652b67ac80f9