Analysis
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max time kernel
147s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
13-03-2024 02:13
Behavioral task
behavioral1
Sample
374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar
Resource
win10v2004-20240226-en
General
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Target
374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar
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Size
64KB
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MD5
575d75ecae9946950af94951bfac908e
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SHA1
856900c7d62b852f2f5e854f11d8b072aa3721b1
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SHA256
374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790
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SHA512
1fd705f755e348f3d69f1a32315762d23fa74857d8e697f5f2b19081bc1dd210eb70cda20534369ede70ec4a7fe33edb2d67680299b5963af7dae5f2476c259c
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SSDEEP
1536:4jdiIZTjmn6fVQsJ4J7gTtcMbVrHCCT3Kk/:4jwINVqsJmiVrC/k/
Malware Config
Signatures
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Drops startup file 1 IoCs
Processes:
java.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar java.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
java.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790 = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790 = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar\"" java.exe -
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 use of WriteProcessMemory 9 IoCs
Processes:
java.execmd.exedescription pid process target process PID 2924 wrote to memory of 2464 2924 java.exe cmd.exe PID 2924 wrote to memory of 2464 2924 java.exe cmd.exe PID 2924 wrote to memory of 2464 2924 java.exe cmd.exe PID 2924 wrote to memory of 2720 2924 java.exe java.exe PID 2924 wrote to memory of 2720 2924 java.exe java.exe PID 2924 wrote to memory of 2720 2924 java.exe java.exe PID 2464 wrote to memory of 2472 2464 cmd.exe schtasks.exe PID 2464 wrote to memory of 2472 2464 cmd.exe schtasks.exe PID 2464 wrote to memory of 2472 2464 cmd.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:\Windows\system32\java.exejava -jar C:\Users\Admin\AppData\Local\Temp\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.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\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar"3⤵
- Creates scheduled task(s)
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C:\Program Files\Java\jre7\bin\java.exe"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jar"2⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790.jarFilesize
64KB
MD5575d75ecae9946950af94951bfac908e
SHA1856900c7d62b852f2f5e854f11d8b072aa3721b1
SHA256374aa16abdd7a527d3500fb1d49f822263fc382706db71e0f58cc3e00045a790
SHA5121fd705f755e348f3d69f1a32315762d23fa74857d8e697f5f2b19081bc1dd210eb70cda20534369ede70ec4a7fe33edb2d67680299b5963af7dae5f2476c259c
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memory/2720-21-0x0000000002620000-0x0000000005620000-memory.dmpFilesize
48.0MB
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memory/2720-28-0x0000000001B70000-0x0000000001B71000-memory.dmpFilesize
4KB
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memory/2720-30-0x0000000002620000-0x0000000005620000-memory.dmpFilesize
48.0MB
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memory/2924-6-0x00000000025A0000-0x00000000055A0000-memory.dmpFilesize
48.0MB
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memory/2924-10-0x0000000000340000-0x0000000000341000-memory.dmpFilesize
4KB