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Analysis
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max time kernel
145s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
07/08/2024, 21:46
Behavioral task
behavioral1
Sample
Cleaner.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
Cleaner.exe
Resource
win10v2004-20240802-en
General
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Target
Cleaner.exe
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Size
172KB
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MD5
9229077d00bad648e91aaf30bd096567
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SHA1
83eba361175f6c5dd71f740d527ab853a504d15b
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SHA256
1eca23db92c0319d414040c2ff9a240d57f806290e1f0238d696fea761c5d948
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SHA512
a8d6ac08eb8a2d74791238bfd73cda0062ac4a706bba6a61472efd4a062e2e611661a931d0d14a7edd52a833be830c254dbc14b184ae30a013687d547bc105a7
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SSDEEP
3072:IuAN13vRxKBL+b0kb1zehFjO/G16Bz65/M6If+3Js+3JFkKeTnZ:KRYib0y1ihf16xBt25
Malware Config
Extracted
xworm
127.0.0.1:1990
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Install_directory
%AppData%
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install_file
cleaner.exe
Signatures
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Detect Xworm Payload 2 IoCs
resource yara_rule behavioral2/memory/2612-1-0x0000000000330000-0x0000000000362000-memory.dmp family_xworm behavioral2/files/0x00090000000233ea-10.dat family_xworm -
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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation Cleaner.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cleaner.lnk Cleaner.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cleaner.lnk Cleaner.exe -
Executes dropped EXE 2 IoCs
pid Process 736 cleaner.exe 212 cleaner.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cleaner = "C:\\Users\\Admin\\AppData\\Roaming\\cleaner.exe" Cleaner.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1580 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2612 Cleaner.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2612 Cleaner.exe Token: SeDebugPrivilege 2612 Cleaner.exe Token: SeDebugPrivilege 736 cleaner.exe Token: SeDebugPrivilege 212 cleaner.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2612 Cleaner.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2612 wrote to memory of 1580 2612 Cleaner.exe 88 PID 2612 wrote to memory of 1580 2612 Cleaner.exe 88 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\Cleaner.exe"C:\Users\Admin\AppData\Local\Temp\Cleaner.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:2612 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "cleaner" /tr "C:\Users\Admin\AppData\Roaming\cleaner.exe"2⤵
- Scheduled Task/Job: Scheduled Task
PID:1580
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C:\Users\Admin\AppData\Roaming\cleaner.exeC:\Users\Admin\AppData\Roaming\cleaner.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:736
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C:\Users\Admin\AppData\Roaming\cleaner.exeC:\Users\Admin\AppData\Roaming\cleaner.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:212
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
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Filesize
654B
MD52ff39f6c7249774be85fd60a8f9a245e
SHA1684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA5121d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
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Filesize
172KB
MD59229077d00bad648e91aaf30bd096567
SHA183eba361175f6c5dd71f740d527ab853a504d15b
SHA2561eca23db92c0319d414040c2ff9a240d57f806290e1f0238d696fea761c5d948
SHA512a8d6ac08eb8a2d74791238bfd73cda0062ac4a706bba6a61472efd4a062e2e611661a931d0d14a7edd52a833be830c254dbc14b184ae30a013687d547bc105a7