Analysis
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max time kernel
121s -
max time network
112s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
31-05-2024 10:12
Static task
static1
Behavioral task
behavioral1
Sample
b42b24d0549e201cf0727f1edeaacbebfed2eeec6af9eff6bdea4bf4ab0a1918.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
b42b24d0549e201cf0727f1edeaacbebfed2eeec6af9eff6bdea4bf4ab0a1918.exe
Resource
win10v2004-20240508-en
General
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Target
b42b24d0549e201cf0727f1edeaacbebfed2eeec6af9eff6bdea4bf4ab0a1918.exe
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Size
8.3MB
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MD5
e99605f8de15e4ac43c1ac5c56c2b783
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SHA1
5399b6e0623ce3f4e979014ce2fc072896bb6e56
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SHA256
b42b24d0549e201cf0727f1edeaacbebfed2eeec6af9eff6bdea4bf4ab0a1918
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SHA512
83c2085df6d7434e0fadda727bf16fd55daaff1a3ab14960d5086d9e8e6e19c7ca2127fe9feb917ae5c68584462c18bbb7ac345a4f3ee521b6cd9a9274ba4c25
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SSDEEP
98304:J+UnFjkb2q0JaPq+KVWIqZe5rCph13dYFCd3D1JZIfNMWsYzo1ZHuOWq+fu+s7GP:XC1pSWpZeBCph1oCdiG0zGMOWq+WDSP
Malware Config
Signatures
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Modifies firewall policy service 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\C:\ = "1" b42b24d0549e201cf0727f1edeaacbebfed2eeec6af9eff6bdea4bf4ab0a1918.exe -
PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
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Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 17 ipinfo.io 18 ipinfo.io 6 api.myip.com 7 api.myip.com -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy b42b24d0549e201cf0727f1edeaacbebfed2eeec6af9eff6bdea4bf4ab0a1918.exe File opened for modification C:\Windows\System32\GroupPolicy\gpt.ini b42b24d0549e201cf0727f1edeaacbebfed2eeec6af9eff6bdea4bf4ab0a1918.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol b42b24d0549e201cf0727f1edeaacbebfed2eeec6af9eff6bdea4bf4ab0a1918.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI b42b24d0549e201cf0727f1edeaacbebfed2eeec6af9eff6bdea4bf4ab0a1918.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b42b24d0549e201cf0727f1edeaacbebfed2eeec6af9eff6bdea4bf4ab0a1918.exe"C:\Users\Admin\AppData\Local\Temp\b42b24d0549e201cf0727f1edeaacbebfed2eeec6af9eff6bdea4bf4ab0a1918.exe"1⤵
- Modifies firewall policy service
- Drops file in System32 directory
PID:2288
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:4620
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:64