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Analysis
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max time kernel
139s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2023, 10:24
Behavioral task
behavioral1
Sample
aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe
Resource
win7-20230831-en
General
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Target
aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe
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Size
5.4MB
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MD5
380b17feab2c2dc51b7940a95295678e
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SHA1
d39bb6eabdf04e535737f77ef838f5ad6bdb4b6a
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SHA256
aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312
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SHA512
728c01575152a1b8637bba1db1078e3c66e8631351c18ec55c4356e26af1fcd16b5d9698058e4247b7e43c5090f173b19d81664b1c60b03b6e98cb3f6a278c3e
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SSDEEP
98304:c6te5FnoajcsPJRRCsA7J//OaHvQyqW9oe4+JOijZdMAuaKzG3gu5:c75ZxPJRRy7h/8yh13jZSAuaqGwC
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__ aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.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\SystemBiosVersion aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.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-1-5-21-2890696111-2332180956-3312704074-1000\Control Panel\International\Geo\Nation aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.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 behavioral2/memory/2944-0-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-1-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-8-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-11-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-12-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-13-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-14-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-15-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-16-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-17-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-18-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-26-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-27-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida behavioral2/memory/2944-40-0x00007FF79C090000-0x00007FF79CEA9000-memory.dmp themida -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe -
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 19 api.myip.com 22 ipinfo.io 23 ipinfo.io 18 api.myip.com -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe File opened for modification C:\Windows\System32\GroupPolicy\gpt.ini aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2944 aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2944 aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe 2944 aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe"C:\Users\Admin\AppData\Local\Temp\aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.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:2944
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4712
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:1508
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
127B
MD58ef9853d1881c5fe4d681bfb31282a01
SHA1a05609065520e4b4e553784c566430ad9736f19f
SHA2569228f13d82c3dc96b957769f6081e5bac53cffca4ffde0ba1e102d9968f184a2
SHA5125ddee931a08cfea5bb9d1c36355d47155a24d617c2a11d08364ffc54e593064011dee4fea8ac5b67029cab515d3071f0ba0422bb76af492a3115272ba8feb005