Analysis
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max time kernel
143s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
10/10/2022, 09:16
Static task
static1
Behavioral task
behavioral1
Sample
scan002548.pdf.js
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
scan002548.pdf.js
Resource
win10v2004-20220812-en
General
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Target
scan002548.pdf.js
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Size
16KB
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MD5
4580dbb222f08f1c08a6e79a1e12f3aa
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SHA1
d363d4d19625e3931bbda3a9ca7b776485768a50
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SHA256
b921ff143f8ca087ff5300fc4bbfe2380d4b8f33d05120d2aec85faebce907f8
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SHA512
f4d9bd04313ea69bf9bc4b07c8c11f1938629c099168c3ab6cf23ce188e2157bfd48f3abf0ab2656e9469792e7d066f24aa8ed6f487bf8db9711f62ce98313b0
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SSDEEP
384:XFHo+Kdxqm4y1eJcztRyKQbiWMzCKQzhvzS2aGapj:XBobnxeIRyrMzqxPapj
Malware Config
Extracted
vjw0rm
http://whiteking.giize.com:6565
Signatures
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Blocklisted process makes network request 7 IoCs
flow pid Process 6 4280 wscript.exe 7 3880 wscript.exe 22 4280 wscript.exe 32 4280 wscript.exe 37 4280 wscript.exe 40 4280 wscript.exe 41 4280 wscript.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation wscript.exe -
Drops startup file 4 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NbcMSbvqgG.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NbcMSbvqgG.js wscript.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\scan002548.pdf.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\scan002548.pdf.js wscript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PTGGDQ1TZR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\scan002548.pdf.js\"" wscript.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3880 wrote to memory of 4280 3880 wscript.exe 82 PID 3880 wrote to memory of 4280 3880 wscript.exe 82
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\scan002548.pdf.js1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3880 -
C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\NbcMSbvqgG.js"2⤵
- Blocklisted process makes network request
- Drops startup file
PID:4280
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
5KB
MD538ab62fc6688bab6d4a1b275969e147d
SHA1dfc02f21a6ec8b17e8e10f26de161ed06ac3bcb7
SHA2563a46e2e43ceb2f2edb5ccebef9bddc9dc79d8fcbf6e266bffa8be503618b33b3
SHA512276744bff93bd1f5bd970a640ca09a27b938daff4a71bda9623870b5ae8d033d2105fe3ccffeac2ccf1cd123b9febedd8d1e78140f988abc979f96c79161530d