Analysis
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max time kernel
8s -
max time network
13s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
11-06-2023 07:09
Static task
static1
Behavioral task
behavioral1
Sample
SEASON_DATA_CACHE.json
Resource
win7-20230220-en
windows7-x64
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
SEASON_DATA_CACHE.json
Resource
win10v2004-20230220-en
windows10-2004-x64
3 signatures
150 seconds
General
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Target
SEASON_DATA_CACHE.json
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Size
86KB
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MD5
5ddfd0499eeddd764f310a4d293dc0d7
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SHA1
a51673644a0e8eaa2a644b726cacf70ac36da18e
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SHA256
5b3550ddc472474306f5302ee3ba2e4f8d4acfcf425ee202be9e22262ccb8b68
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SHA512
bc5f392fe3c3612d069c1f254c2ac0046468cec751e70eda99db280be9d1e155a741aa1908e026958101a03478fd5fe3ccc25e79e23d0214d93eefa2058a28f0
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SSDEEP
768:CFWUwa00000000000000000+Pb1PbrPbBPbDPbz:CkUwa00000000000000000+
Score
3/10
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 13 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\json_auto_file\shell\edit rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\json_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\json_auto_file\shell\edit\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\json_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\json_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\json_auto_file\ rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\.json\ = "json_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\json_auto_file\shell\open rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\.json rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\json_auto_file\shell\open\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\json_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1" rundll32.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1148 NOTEPAD.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1724 wrote to memory of 664 1724 cmd.exe 29 PID 1724 wrote to memory of 664 1724 cmd.exe 29 PID 1724 wrote to memory of 664 1724 cmd.exe 29 PID 664 wrote to memory of 1148 664 rundll32.exe 30 PID 664 wrote to memory of 1148 664 rundll32.exe 30 PID 664 wrote to memory of 1148 664 rundll32.exe 30
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\SEASON_DATA_CACHE.json1⤵
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\SEASON_DATA_CACHE.json2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:664 -
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\SEASON_DATA_CACHE.json3⤵
- Opens file in notepad (likely ransom note)
PID:1148
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