Analysis
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max time kernel
38s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
09-10-2022 00:45
Behavioral task
behavioral1
Sample
Install.exe
Resource
win7-20220812-en
General
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Target
Install.exe
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Size
686.6MB
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MD5
436c4290282bda086d3a38ae2ea5c2f5
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SHA1
c69e9b7ba4967be00330053ba6b152f8393da612
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SHA256
0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3
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SHA512
ca1efea143c0e73b9c50afeaf0826da24373990c93b176f84e2576596b5296a38765db6710becab1c1829a5a1dba84eb34504f79ae0d55964a845e66a0aab15b
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SSDEEP
98304:ULX0zHX9KZlxm8pNeRNO+eL1nZ779wnqRJh3kMDpzzY8:qXsHX9KmDJeLj9i4nda8
Malware Config
Signatures
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PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Install.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Install.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Install.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-1-5-21-3845472200-3839195424-595303356-1000\Control Panel\International\Geo\Nation Install.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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resource yara_rule behavioral1/memory/1648-55-0x0000000000100000-0x0000000000BA1000-memory.dmp themida behavioral1/memory/1648-56-0x0000000000100000-0x0000000000BA1000-memory.dmp themida behavioral1/memory/1648-57-0x0000000000100000-0x0000000000BA1000-memory.dmp themida behavioral1/memory/1648-58-0x0000000000100000-0x0000000000BA1000-memory.dmp themida behavioral1/memory/1648-60-0x0000000000100000-0x0000000000BA1000-memory.dmp themida behavioral1/memory/1648-61-0x0000000000100000-0x0000000000BA1000-memory.dmp themida behavioral1/memory/1648-62-0x0000000000100000-0x0000000000BA1000-memory.dmp themida behavioral1/memory/1648-63-0x0000000000100000-0x0000000000BA1000-memory.dmp themida behavioral1/memory/1648-64-0x0000000000100000-0x0000000000BA1000-memory.dmp themida behavioral1/memory/1648-65-0x0000000000100000-0x0000000000BA1000-memory.dmp themida -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Install.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 ipinfo.io 5 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy Install.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini Install.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol Install.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI Install.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 1648 Install.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1648 Install.exe 1648 Install.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Install.exe"C:\Users\Admin\AppData\Local\Temp\Install.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1648