Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
31-05-2024 13:09
Behavioral task
behavioral1
Sample
Injector2.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
Injector2.exe
Resource
win10v2004-20240426-en
General
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Target
Injector2.exe
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Size
327KB
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MD5
3e1b6c00c152ecd0945df66e71caa4c1
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SHA1
6b4e5c1646cac905034b740205f6003a73e872dc
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SHA256
1bee8362e0fffaa161de96775b92a2b6be47e65798251d0bfd4b82d134cfbd89
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SHA512
82a8682d63cb88e74667b9a4824e8d832aa9116fd8854e9debc0912ce1a5437544db213e363a6cfbf42bd5a1b0ed6ba4f622803759ca66e6ab50c4ad34b4627b
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SSDEEP
1536:MDW2YGf/GEjNLTkAD5eZZerr+bhsFz08ISAkTO/2jxSZEsFGfFuAYCRAutPsAzAz:MDrYW/rka5Rr+bhsjItGOOj0j
Malware Config
Extracted
xworm
rat234678235481254.ddns.net:4782
<Xwormmm>:3412
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Install_directory
%AppData%
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install_file
Runtime Broker.exe
Signatures
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Detect Xworm Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/1340-1-0x0000000000660000-0x00000000006B6000-memory.dmp family_xworm C:\Users\Admin\AppData\Roaming\Runtime Broker.exe family_xworm -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Injector2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation Injector2.exe -
Drops startup file 2 IoCs
Processes:
Injector2.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Runtime Broker.lnk Injector2.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Runtime Broker.lnk Injector2.exe -
Executes dropped EXE 3 IoCs
Processes:
Runtime Broker.exeRuntime Broker.exeRuntime Broker.exepid process 436 Runtime Broker.exe 3436 Runtime Broker.exe 3076 Runtime Broker.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Injector2.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Runtime Broker = "C:\\Users\\Admin\\AppData\\Roaming\\Runtime Broker.exe" Injector2.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 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:
Injector2.exepid process 1340 Injector2.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
Injector2.exeRuntime Broker.exeRuntime Broker.exeRuntime Broker.exedescription pid process Token: SeDebugPrivilege 1340 Injector2.exe Token: SeDebugPrivilege 1340 Injector2.exe Token: SeDebugPrivilege 436 Runtime Broker.exe Token: SeDebugPrivilege 3436 Runtime Broker.exe Token: SeDebugPrivilege 3076 Runtime Broker.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Injector2.exepid process 1340 Injector2.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
Injector2.exedescription pid process target process PID 1340 wrote to memory of 4344 1340 Injector2.exe schtasks.exe PID 1340 wrote to memory of 4344 1340 Injector2.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\Injector2.exe"C:\Users\Admin\AppData\Local\Temp\Injector2.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:1340 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Runtime Broker" /tr "C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"2⤵
- Creates scheduled task(s)
PID:4344
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C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:436
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C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3436
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C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3076
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
654B
MD52ff39f6c7249774be85fd60a8f9a245e
SHA1684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA5121d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
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Filesize
327KB
MD53e1b6c00c152ecd0945df66e71caa4c1
SHA16b4e5c1646cac905034b740205f6003a73e872dc
SHA2561bee8362e0fffaa161de96775b92a2b6be47e65798251d0bfd4b82d134cfbd89
SHA51282a8682d63cb88e74667b9a4824e8d832aa9116fd8854e9debc0912ce1a5437544db213e363a6cfbf42bd5a1b0ed6ba4f622803759ca66e6ab50c4ad34b4627b