Analysis
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max time kernel
149s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
24-01-2023 16:41
Static task
static1
Behavioral task
behavioral1
Sample
Fully Executed Contract.js
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
Fully Executed Contract.js
Resource
win10v2004-20220812-en
General
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Target
Fully Executed Contract.js
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Size
984KB
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MD5
6896610816747b15420b9c1b481283ec
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SHA1
2a942e057e0d1427cca9827a2e268d2aca207e16
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SHA256
7c0df5e5dc598888c62cb7ebfb76b940e310b45f7c78a4a0797aabd4b6e1f1b2
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SHA512
291f0314936b742383a20b4a5bb6abf6f39bc4d97e09346e275ef2de9d9c97c9788c7f0d11e6bf41cbfce7645df89586b98ed94200bd2d7df769d605275d98c8
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SSDEEP
6144:eQfPBx5q0sQ1o7rsbHC01mDBpNW2mTMSbpuV8exLbSXlZB7AM:eQ3B7qgpKLbE
Malware Config
Extracted
wshrat
http://auto.stevenpartners.com:23015
Signatures
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Blocklisted process makes network request 55 IoCs
Processes:
wscript.exewscript.exewscript.exeflow pid process 10 1732 wscript.exe 11 364 wscript.exe 12 520 wscript.exe 13 520 wscript.exe 16 364 wscript.exe 17 1732 wscript.exe 19 520 wscript.exe 22 364 wscript.exe 23 1732 wscript.exe 25 520 wscript.exe 27 520 wscript.exe 30 364 wscript.exe 31 1732 wscript.exe 32 520 wscript.exe 36 364 wscript.exe 37 1732 wscript.exe 39 520 wscript.exe 40 520 wscript.exe 42 364 wscript.exe 44 1732 wscript.exe 47 520 wscript.exe 49 1732 wscript.exe 51 364 wscript.exe 52 520 wscript.exe 53 1732 wscript.exe 55 520 wscript.exe 56 364 wscript.exe 58 520 wscript.exe 60 1732 wscript.exe 62 364 wscript.exe 65 520 wscript.exe 66 1732 wscript.exe 67 364 wscript.exe 69 520 wscript.exe 71 520 wscript.exe 74 1732 wscript.exe 75 364 wscript.exe 77 520 wscript.exe 78 1732 wscript.exe 79 364 wscript.exe 81 520 wscript.exe 85 520 wscript.exe 87 1732 wscript.exe 89 364 wscript.exe 90 520 wscript.exe 91 364 wscript.exe 93 1732 wscript.exe 95 520 wscript.exe 96 520 wscript.exe 99 364 wscript.exe 100 1732 wscript.exe 103 520 wscript.exe 104 364 wscript.exe 106 1732 wscript.exe 108 520 wscript.exe -
Drops startup file 5 IoCs
Processes:
wscript.exewscript.exewscript.exewscript.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Fully Executed Contract.js wscript.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vruJgaVwTF.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vruJgaVwTF.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Fully Executed Contract.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vruJgaVwTF.js wscript.exe -
Adds Run key to start application 2 TTPs 8 IoCs
Processes:
wscript.exewscript.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fully Executed Contract = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Fully Executed Contract.js\"" wscript.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Fully Executed Contract = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Fully Executed Contract.js\"" wscript.exe Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fully Executed Contract = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Fully Executed Contract.js\"" wscript.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Fully Executed Contract = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Fully Executed Contract.js\"" wscript.exe Key created \REGISTRY\MACHINE\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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Script User-Agent 23 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 47 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 52 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 55 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 103 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 39 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 27 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 58 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 69 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 81 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 90 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 95 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 19 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 32 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 71 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 85 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 96 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 108 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 13 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 25 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 40 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 65 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 77 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript HTTP User-Agent header 12 WSHRAT|94A7BB46|RYNKSFQE|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 24/1/2023|JavaScript -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
wscript.exewscript.exedescription pid process target process PID 2016 wrote to memory of 1732 2016 wscript.exe wscript.exe PID 2016 wrote to memory of 1732 2016 wscript.exe wscript.exe PID 2016 wrote to memory of 1732 2016 wscript.exe wscript.exe PID 2016 wrote to memory of 520 2016 wscript.exe wscript.exe PID 2016 wrote to memory of 520 2016 wscript.exe wscript.exe PID 2016 wrote to memory of 520 2016 wscript.exe wscript.exe PID 520 wrote to memory of 364 520 wscript.exe wscript.exe PID 520 wrote to memory of 364 520 wscript.exe wscript.exe PID 520 wrote to memory of 364 520 wscript.exe wscript.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\Fully Executed Contract.js"1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\vruJgaVwTF.js"2⤵
- Blocklisted process makes network request
- Drops startup file
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C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Fully Executed Contract.js"2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\vruJgaVwTF.js"3⤵
- Blocklisted process makes network request
- Drops startup file
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Fully Executed Contract.jsFilesize
984KB
MD56896610816747b15420b9c1b481283ec
SHA12a942e057e0d1427cca9827a2e268d2aca207e16
SHA2567c0df5e5dc598888c62cb7ebfb76b940e310b45f7c78a4a0797aabd4b6e1f1b2
SHA512291f0314936b742383a20b4a5bb6abf6f39bc4d97e09346e275ef2de9d9c97c9788c7f0d11e6bf41cbfce7645df89586b98ed94200bd2d7df769d605275d98c8
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Fully Executed Contract.jsFilesize
984KB
MD56896610816747b15420b9c1b481283ec
SHA12a942e057e0d1427cca9827a2e268d2aca207e16
SHA2567c0df5e5dc598888c62cb7ebfb76b940e310b45f7c78a4a0797aabd4b6e1f1b2
SHA512291f0314936b742383a20b4a5bb6abf6f39bc4d97e09346e275ef2de9d9c97c9788c7f0d11e6bf41cbfce7645df89586b98ed94200bd2d7df769d605275d98c8
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vruJgaVwTF.jsFilesize
346KB
MD502413cd5481c1f9eb58e5bdd5cdbf1a3
SHA1024dc9be1421b29bc99bd39ef63c554a01c5caeb
SHA256a681d7961a9381a8bedbd00fab5bb84128ab3a2990848aeab4c896952e79a8dc
SHA512f4f1bebe841c38f6969ba355022af6e9c60621ddeddc0ae6d68ad559bd684c1c93680b8314637a8b6a8c299378ce254863b674d9000d191238ecdca538773011
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C:\Users\Admin\AppData\Roaming\vruJgaVwTF.jsFilesize
346KB
MD502413cd5481c1f9eb58e5bdd5cdbf1a3
SHA1024dc9be1421b29bc99bd39ef63c554a01c5caeb
SHA256a681d7961a9381a8bedbd00fab5bb84128ab3a2990848aeab4c896952e79a8dc
SHA512f4f1bebe841c38f6969ba355022af6e9c60621ddeddc0ae6d68ad559bd684c1c93680b8314637a8b6a8c299378ce254863b674d9000d191238ecdca538773011
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C:\Users\Admin\AppData\Roaming\vruJgaVwTF.jsFilesize
346KB
MD502413cd5481c1f9eb58e5bdd5cdbf1a3
SHA1024dc9be1421b29bc99bd39ef63c554a01c5caeb
SHA256a681d7961a9381a8bedbd00fab5bb84128ab3a2990848aeab4c896952e79a8dc
SHA512f4f1bebe841c38f6969ba355022af6e9c60621ddeddc0ae6d68ad559bd684c1c93680b8314637a8b6a8c299378ce254863b674d9000d191238ecdca538773011
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memory/364-58-0x0000000000000000-mapping.dmp
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memory/520-56-0x0000000000000000-mapping.dmp
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memory/1732-54-0x0000000000000000-mapping.dmp