Analysis
- max time kernel
157s - max time network
160s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
20/03/2024, 01:55
General
- Target dunker.jar
- Size 639KB
- Sample240320-cb62radh48
- SHA256 68250749342e796e87bf96b162bfa3ebfd6cf7f134d93940d48394275d655f45
Malware Config
Signatures
- Modifies file permissions 1 TTPs 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetWindowsHookEx 4 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- Views/modifies file attributes 1 TTPs 1 IoCs
Processes
-
C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exejava -jar C:\Users\Admin\AppData\Local\Temp\dunker.jar1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\icacls.exeC:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M2⤵
- Modifies file permissions
-
-
C:\Windows\SYSTEM32\attrib.exeattrib +H C:\Users\Admin\AppData\Roaming\Microsoft\.tmp\1710899794418.tmp2⤵
- Views/modifies file attributes
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c "REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v Home /d "C:\Program Files\Java\jre-1.8\bin\javaw.exe -jar C:\Users\Admin\AppData\Roaming\Microsoft\.tmp\1710899794418.tmp" /f"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\reg.exeREG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v Home /d "C:\Program Files\Java\jre-1.8\bin\javaw.exe -jar C:\Users\Admin\AppData\Roaming\Microsoft\.tmp\1710899794418.tmp" /f3⤵
- Adds Run key to start application
-
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1408 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
1710899794418.tmp
memory/3896-49-0x0000020F93BF0000-0x0000020F93BF1000-memory.dmp
memory/3896-42-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-13-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-20-0x0000020F93BF0000-0x0000020F93BF1000-memory.dmp
memory/3896-35-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-39-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-2-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-11-0x0000020F93BF0000-0x0000020F93BF1000-memory.dmp
memory/3896-45-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-46-0x0000020F93BF0000-0x0000020F93BF1000-memory.dmp
memory/3896-12-0x0000020F93BF0000-0x0000020F93BF1000-memory.dmp
memory/3896-48-0x0000020F93BF0000-0x0000020F93BF1000-memory.dmp
memory/3896-75-0x0000020F93BF0000-0x0000020F93BF1000-memory.dmp
memory/3896-54-0x0000020F93BF0000-0x0000020F93BF1000-memory.dmp
memory/3896-59-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-61-0x0000020F93BF0000-0x0000020F93BF1000-memory.dmp
memory/3896-52-0x0000020F93BF0000-0x0000020F93BF1000-memory.dmp
memory/3896-98-0x0000020F93BF0000-0x0000020F93BF1000-memory.dmp
memory/3896-167-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-172-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-173-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-174-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-175-0x0000020F93C10000-0x0000020F94C10000-memory.dmp
memory/3896-176-0x0000020F93C10000-0x0000020F94C10000-memory.dmp