Analysis
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max time kernel
20s -
max time network
21s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
15-07-2024 16:25
Behavioral task
behavioral1
Sample
Xwrom/XWorm V5.6.exe
Resource
win10v2004-20240709-en
General
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Target
Xwrom/XWorm V5.6.exe
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Size
476KB
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MD5
bf1ccd2d127e4ac0dc4ad6307cd1b62f
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SHA1
fc95eb4ec00d3b745fb97f7f8f140cfbe51c23ac
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SHA256
b32c1554a1a62e6d4c30bad330e5146016fe11521671536c669b429b895e5a11
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SHA512
0b6fcb5596904849c5d1ef7439af2849394a56a5f64d337b85cfe2158c8aff2c2a6db5a03c5464520537ec5a203f4c784db4e47d48dc16efdfe064a0e831a3ce
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SSDEEP
12288:nB3VqDKxV3hy1gtF06T4UD/Tdv0Vsc+F:niOVyv6rPd0y
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
XWorm V5.6.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Control Panel\International\Geo\Nation XWorm V5.6.exe -
Drops startup file 2 IoCs
Processes:
XWorm V5.6.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\COM Surrogate.lnk XWorm V5.6.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\COM Surrogate.lnk XWorm V5.6.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
XWorm V5.6.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\COM Surrogate = "C:\\Users\\Public\\COM Surrogate" XWorm V5.6.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.
Processes:
flow ioc 18 ip-api.com -
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.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
XWorm V5.6.exepid process 4456 XWorm V5.6.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
XWorm V5.6.exedescription pid process Token: SeDebugPrivilege 4456 XWorm V5.6.exe Token: SeDebugPrivilege 4456 XWorm V5.6.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XWorm V5.6.exepid process 4456 XWorm V5.6.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
XWorm V5.6.exedescription pid process target process PID 4456 wrote to memory of 2308 4456 XWorm V5.6.exe schtasks.exe PID 4456 wrote to memory of 2308 4456 XWorm V5.6.exe schtasks.exe -
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\Xwrom\XWorm V5.6.exe"C:\Users\Admin\AppData\Local\Temp\Xwrom\XWorm V5.6.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
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "COM Surrogate" /tr "C:\Users\Public\COM Surrogate"2⤵
- Scheduled Task/Job: Scheduled Task
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1