Analysis
- max time kernel
105s - max time network
111s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
26/06/2024, 17:23
General
- Target 0a830444a8c87e98ea93f7e726ecf1aa22aa07799bf6d374edc2c5dfdde511f9.jar
- Size 64KB
- Sample240626-vygpgsxcql
- SHA256 0a830444a8c87e98ea93f7e726ecf1aa22aa07799bf6d374edc2c5dfdde511f9
Malware Config
Signatures
- STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
- Drops startup file 1 IoCs
- Modifies file permissions 1 TTPs 1 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- 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.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious use of SetWindowsHookEx 5 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- 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:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exejava -jar C:\Users\Admin\AppData\Local\Temp\0a830444a8c87e98ea93f7e726ecf1aa22aa07799bf6d374edc2c5dfdde511f9.jar1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\icacls.exeC:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M2⤵
- Modifies file permissions
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C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\0a830444a8c87e98ea93f7e726ecf1aa22aa07799bf6d374edc2c5dfdde511f9.jar"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\0a830444a8c87e98ea93f7e726ecf1aa22aa07799bf6d374edc2c5dfdde511f9.jar"3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\0a830444a8c87e98ea93f7e726ecf1aa22aa07799bf6d374edc2c5dfdde511f9.jar"2⤵
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
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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=4240 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:81⤵
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C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE"C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE" /s "C:\Users\Admin\Desktop\FindJoin.ppsm" /ou ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
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C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE"C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE" /s "C:\Users\Admin\Desktop\BackupUnblock.ppsm" /ou ""1⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
0a830444a8c87e98ea93f7e726ecf1aa22aa07799bf6d374edc2c5dfdde511f9.jar
3903daac9bc4a3b7.timestamp
E2C4A4E.tmp
memory/1188-2-0x000002258C290000-0x000002258C500000-memory.dmp
memory/1188-11-0x000002258AA90000-0x000002258AA91000-memory.dmp
memory/1188-12-0x000002258AA90000-0x000002258AA91000-memory.dmp
memory/1188-15-0x000002258C500000-0x000002258C510000-memory.dmp
memory/1188-17-0x000002258C510000-0x000002258C520000-memory.dmp
memory/1188-20-0x000002258C520000-0x000002258C530000-memory.dmp
memory/1188-21-0x000002258C530000-0x000002258C540000-memory.dmp
memory/1188-23-0x000002258C540000-0x000002258C550000-memory.dmp
memory/1188-25-0x000002258C550000-0x000002258C560000-memory.dmp
memory/1188-29-0x000002258C560000-0x000002258C570000-memory.dmp
memory/1188-28-0x000002258C290000-0x000002258C500000-memory.dmp
memory/1188-30-0x000002258C570000-0x000002258C580000-memory.dmp
memory/1188-32-0x000002258C580000-0x000002258C590000-memory.dmp
memory/1188-46-0x000002258C560000-0x000002258C570000-memory.dmp
memory/1188-47-0x000002258C570000-0x000002258C580000-memory.dmp
memory/1188-45-0x000002258C550000-0x000002258C560000-memory.dmp
memory/1188-44-0x000002258C540000-0x000002258C550000-memory.dmp
memory/1188-43-0x000002258C530000-0x000002258C540000-memory.dmp
memory/1188-42-0x000002258C520000-0x000002258C530000-memory.dmp
memory/1188-41-0x000002258C510000-0x000002258C520000-memory.dmp
memory/1188-40-0x000002258C500000-0x000002258C510000-memory.dmp
memory/1188-39-0x000002258C290000-0x000002258C500000-memory.dmp
memory/2276-51-0x000001884A540000-0x000001884A7B0000-memory.dmp
memory/2276-61-0x0000018848D00000-0x0000018848D01000-memory.dmp
memory/2276-64-0x000001884A7B0000-0x000001884A7C0000-memory.dmp
memory/2276-65-0x000001884A7C0000-0x000001884A7D0000-memory.dmp
memory/2276-68-0x000001884A7D0000-0x000001884A7E0000-memory.dmp
memory/2276-69-0x000001884A7E0000-0x000001884A7F0000-memory.dmp
memory/2276-71-0x000001884A7F0000-0x000001884A800000-memory.dmp
memory/2276-73-0x000001884A800000-0x000001884A810000-memory.dmp
memory/2276-76-0x000001884A810000-0x000001884A820000-memory.dmp
memory/2276-77-0x000001884A820000-0x000001884A830000-memory.dmp
memory/2276-79-0x000001884A830000-0x000001884A840000-memory.dmp
memory/2276-81-0x000001884A540000-0x000001884A7B0000-memory.dmp
memory/2276-84-0x000001884A7B0000-0x000001884A7C0000-memory.dmp
memory/2276-85-0x000001884A7C0000-0x000001884A7D0000-memory.dmp
memory/2276-86-0x000001884A7D0000-0x000001884A7E0000-memory.dmp
memory/2276-87-0x000001884A7E0000-0x000001884A7F0000-memory.dmp
memory/2276-88-0x000001884A7F0000-0x000001884A800000-memory.dmp
memory/2276-89-0x000001884A800000-0x000001884A810000-memory.dmp
memory/2276-90-0x000001884A810000-0x000001884A820000-memory.dmp
memory/2276-91-0x000001884A820000-0x000001884A830000-memory.dmp
memory/3272-94-0x00007FF881A90000-0x00007FF881AA0000-memory.dmp
memory/3272-92-0x00007FF881A90000-0x00007FF881AA0000-memory.dmp
memory/3272-93-0x00007FF881A90000-0x00007FF881AA0000-memory.dmp
memory/3272-95-0x00007FF881A90000-0x00007FF881AA0000-memory.dmp
memory/3272-96-0x00007FF881A90000-0x00007FF881AA0000-memory.dmp
memory/3272-97-0x00007FF881590000-0x00007FF8815A0000-memory.dmp
memory/3272-98-0x00007FF881590000-0x00007FF8815A0000-memory.dmp
memory/3628-119-0x00007FF881A90000-0x00007FF881AA0000-memory.dmp
memory/3628-120-0x00007FF881A90000-0x00007FF881AA0000-memory.dmp
memory/3628-122-0x00007FF881A90000-0x00007FF881AA0000-memory.dmp
memory/3628-121-0x00007FF881A90000-0x00007FF881AA0000-memory.dmp