Analysis
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max time kernel
148s -
max time network
156s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
02-09-2021 03:22
Static task
static1
Behavioral task
behavioral1
Sample
2.js
Resource
win7v20210408
Behavioral task
behavioral2
Sample
2.js
Resource
win10v20210408
General
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Target
2.js
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Size
225KB
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MD5
7db6d9cd3eb60b8e7296921e4d8d959e
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SHA1
b2bbea5b2f903c83758d2bb31399addcab9a32ad
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SHA256
05c63cde94e8cf070a1d5fe7e1d14cf4e8f37da01274224dcbe67a136a4f8d77
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SHA512
c42bf22429f2f84cede85e6bdf93ac15a7cd6498086df302b8559575b2aa95bc88ad1da8e73096bd3f10549c5fc8f75c5bdd25b2d08862a1b3a144130e4fb44f
Malware Config
Signatures
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Blocklisted process makes network request 17 IoCs
Processes:
WScript.exeflow pid process 10 2272 WScript.exe 17 2272 WScript.exe 21 2272 WScript.exe 22 2272 WScript.exe 23 2272 WScript.exe 24 2272 WScript.exe 25 2272 WScript.exe 26 2272 WScript.exe 27 2272 WScript.exe 28 2272 WScript.exe 29 2272 WScript.exe 30 2272 WScript.exe 31 2272 WScript.exe 32 2272 WScript.exe 33 2272 WScript.exe 34 2272 WScript.exe 35 2272 WScript.exe -
Drops startup file 2 IoCs
Processes:
WScript.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HjFFOyQEiR.js WScript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HjFFOyQEiR.js WScript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
WScript.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\HjFFOyQEiR.js\"" WScript.exe Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run WScript.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1896 3612 WerFault.exe javaw.exe -
Modifies registry class 1 IoCs
Processes:
wscript.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings wscript.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
WerFault.exepid process 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe 1896 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
WerFault.exedescription pid process Token: SeDebugPrivilege 1896 WerFault.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
wscript.exedescription pid process target process PID 808 wrote to memory of 2272 808 wscript.exe WScript.exe PID 808 wrote to memory of 2272 808 wscript.exe WScript.exe PID 808 wrote to memory of 3612 808 wscript.exe javaw.exe PID 808 wrote to memory of 3612 808 wscript.exe javaw.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\2.js1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\HjFFOyQEiR.js"2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
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C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe"C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\abadfcqfdn.txt"2⤵
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 3612 -s 3523⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\HjFFOyQEiR.jsMD5
25308d3faf2814d521f745a11eddb128
SHA1c43b46b320a9712d7d2122c0815b4c89197658ad
SHA256e07beb274f63e2a973e5dd8ba08c7898cfd04a878ed9e582783541ae95c863e5
SHA5124a8cb10e2c453b168f83e5044d893231c245bbb76a9470bed8817d41daabd6c3fb7be8ae704b58850ac1c3e423668579db0faeac4d79ff1473e0adf2c04c7ae4
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C:\Users\Admin\AppData\Roaming\abadfcqfdn.txtMD5
d30db43fa4de3d1c86d88199fd218672
SHA1f87e903271b69f5dc3dc5b1da84dca781a838247
SHA256e3c140f5c4fa10ef365115cfa71f73b3a503313cf94068365472bb431e91e7e1
SHA512ba7a5fb9a375a5e1edaf9821d3de2d466a2649cfc4a690170c0c295b7b98fdad9577427a45f6938a7c4ecd827e7554e70175a36f4dfbeb2f7d25f8d22de707ca
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memory/2272-114-0x0000000000000000-mapping.dmp
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memory/3612-116-0x0000000000000000-mapping.dmp