Analysis
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max time kernel
123s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2023 13:32
Behavioral task
behavioral1
Sample
91451.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
91451.exe
Resource
win10v2004-20230221-en
General
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Target
91451.exe
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Size
4.2MB
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MD5
1d3cf58f93934855a05a2388a9f46188
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SHA1
b20fe8c0e418f5ed18bbac16fffd66ec202d514a
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SHA256
20cf945541d245468ff9f86e3339a5ce537e33ed06951f3f2dcc6acdcf90a31e
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SHA512
f8dd1cec6cdd8f5b2493d5ddccd514e17302ff132754d73a58e55b31378487ef97e237dbf0156ac4a7cfb5f0f12a5d5de0d9700cf899d9dca4a0324d42050eed
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SSDEEP
98304:1jCTlw6nmA0frFSoP9LAH+Jlt7D1QHGylt4iw+:ywTXZxLAH+j91QHLtrw+
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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
91451.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation 91451.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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Processes:
resource yara_rule behavioral2/memory/2984-133-0x00000000004D0000-0x0000000000CD6000-memory.dmp vmprotect -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 19 ipinfo.io 20 ipinfo.io -
Drops file in System32 directory 4 IoCs
Processes:
91451.exedescription ioc process File opened for modification C:\Windows\System32\GroupPolicy 91451.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 91451.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 91451.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 91451.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
91451.exepid process 2984 91451.exe 2984 91451.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\91451.exe"C:\Users\Admin\AppData\Local\Temp\91451.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/2984-133-0x00000000004D0000-0x0000000000CD6000-memory.dmpFilesize
8.0MB