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Analysis
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max time kernel
115s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22/01/2025, 14:51
Behavioral task
behavioral1
Sample
SamsungCommisionExternal.exe
Resource
win10v2004-20241007-en
General
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Target
SamsungCommisionExternal.exe
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Size
63KB
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MD5
6f30a565049364df3068b5bc88fd36d6
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SHA1
2ca485eb96156bfc561acd69649cf3339da6c610
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SHA256
e65d7f5beb1f383e07917e867fb3b18a59a597319d152ad148b37a8924b8780d
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SHA512
c01edc2fe4e5ad26b9511cc0bc114221878cf961b436a091a79611ce27da69ce7cf58afdcc71d295ad25f08701b1eb16c0c298fd22fbcb69004f760ea2b89ffe
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SSDEEP
1536:9VbfG3pj8mIfpubPOggHEyj26+6POhjV5yD/9:/fGZrIf0bPDgkyjnPOhp5U9
Malware Config
Extracted
xworm
127.0.0.1:24707
modified-begun.gl.at.ply.gg:24707
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Install_directory
%AppData%
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install_file
USB.exe
Signatures
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Detect Xworm Payload 1 IoCs
resource yara_rule behavioral1/memory/3652-1-0x00000000009F0000-0x0000000000A06000-memory.dmp family_xworm -
Xworm family
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Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2392 powershell.exe 4784 powershell.exe 4552 powershell.exe 4316 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation SamsungCommisionExternal.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Smasmug.lnk SamsungCommisionExternal.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Smasmug.lnk SamsungCommisionExternal.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Smasmug = "C:\\Users\\Admin\\AppData\\Roaming\\Smasmug" SamsungCommisionExternal.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 12 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 2392 powershell.exe 2392 powershell.exe 4784 powershell.exe 4784 powershell.exe 4552 powershell.exe 4552 powershell.exe 4316 powershell.exe 4316 powershell.exe 3652 SamsungCommisionExternal.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 3652 SamsungCommisionExternal.exe Token: SeDebugPrivilege 2392 powershell.exe Token: SeDebugPrivilege 4784 powershell.exe Token: SeDebugPrivilege 4552 powershell.exe Token: SeDebugPrivilege 4316 powershell.exe Token: SeDebugPrivilege 3652 SamsungCommisionExternal.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3652 SamsungCommisionExternal.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3652 wrote to memory of 2392 3652 SamsungCommisionExternal.exe 87 PID 3652 wrote to memory of 2392 3652 SamsungCommisionExternal.exe 87 PID 3652 wrote to memory of 4784 3652 SamsungCommisionExternal.exe 89 PID 3652 wrote to memory of 4784 3652 SamsungCommisionExternal.exe 89 PID 3652 wrote to memory of 4552 3652 SamsungCommisionExternal.exe 91 PID 3652 wrote to memory of 4552 3652 SamsungCommisionExternal.exe 91 PID 3652 wrote to memory of 4316 3652 SamsungCommisionExternal.exe 93 PID 3652 wrote to memory of 4316 3652 SamsungCommisionExternal.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\SamsungCommisionExternal.exe"C:\Users\Admin\AppData\Local\Temp\SamsungCommisionExternal.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3652 -
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\SamsungCommisionExternal.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2392
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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 'SamsungCommisionExternal.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4784
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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\Roaming\Smasmug'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4552
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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 'Smasmug'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4316
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
944B
MD577d622bb1a5b250869a3238b9bc1402b
SHA1d47f4003c2554b9dfc4c16f22460b331886b191b
SHA256f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
SHA512d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9
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Filesize
944B
MD59078a011b49db705765cff4b845368b0
SHA1533576940a2780b894e1ae46b17d2f4224051b77
SHA256c89240e395a581db1b44d204e2bcbd5b0e7f636ac72585d8257e6b901f5a3615
SHA51248e0896fc4818bb7e3f250c5cad70d5e4ce71d3f6a8d2d17d8becc36050c1de2a270fde8dea5bb3462f1e7f5eaf074053390934f26d0186113215a1c4e92dd1e
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Filesize
944B
MD56d14ccefeb263594e60b1765e131f7a3
SHA14a9ebdc0dff58645406c40b7b140e1b174756721
SHA25657cd435c8b2bf10a2c77698301789c032e1b6b623ff1420c72e8bca0b10f1e5c
SHA5122013a26123f72a4106524fd9d7389ac4654f97033d22707efc084fb2a3ad01c298eb64f01bb64861ab603615022dbe7cfc97475346edb16b3ba72e905127f101
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82