Analysis
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max time kernel
1801s -
max time network
1214s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
21-04-2024 08:59
Behavioral task
behavioral1
Sample
setup.exe
Resource
win10-20240404-en
General
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Target
setup.exe
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Size
785.0MB
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MD5
6755776d1f19b3ed3ec620031c2e81da
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SHA1
96b6f2998ec6af205710e00f5e40beb727d440c3
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SHA256
699324d2d1bf2a07e459d770a2afc8ba5e0e5e34431647cf8aab656f548921bb
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SHA512
e13765b95290f1c13e52415d0041bc34e4ce36aeb164d9ff2ba11e811d3eedc31375798d35c114ac1b0932c8fa8f88e6ca8cd13a5dec2f927bacd0499c3b4429
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SSDEEP
98304:CcQJYvdLPMWB3hQaxefY7BqlWRrA8QixQiiorKRf:CcQJYvdDnB3iaxew7slWZCiicKRf
Malware Config
Signatures
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Modifies firewall policy service 2 TTPs 1 IoCs
Processes:
setup.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\C:\ = "1" setup.exe -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
Processes:
setup.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ setup.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
setup.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion setup.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion setup.exe -
Processes:
resource yara_rule behavioral2/memory/1900-0-0x00007FF749F60000-0x00007FF74AAB1000-memory.dmp themida behavioral2/memory/1900-1-0x00007FF749F60000-0x00007FF74AAB1000-memory.dmp themida behavioral2/memory/1900-9-0x00007FF749F60000-0x00007FF74AAB1000-memory.dmp themida behavioral2/memory/1900-11-0x00007FF749F60000-0x00007FF74AAB1000-memory.dmp themida behavioral2/memory/1900-12-0x00007FF749F60000-0x00007FF74AAB1000-memory.dmp themida behavioral2/memory/1900-13-0x00007FF749F60000-0x00007FF74AAB1000-memory.dmp themida behavioral2/memory/1900-21-0x00007FF749F60000-0x00007FF74AAB1000-memory.dmp themida behavioral2/memory/1900-22-0x00007FF749F60000-0x00007FF74AAB1000-memory.dmp themida -
Processes:
setup.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA setup.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.
Processes:
flow ioc 39 api.myip.com 40 api.myip.com 41 ipinfo.io 42 ipinfo.io -
Drops file in System32 directory 4 IoCs
Processes:
setup.exedescription ioc process File opened for modification C:\Windows\System32\GroupPolicy setup.exe File opened for modification C:\Windows\System32\GroupPolicy\gpt.ini setup.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol setup.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI setup.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
setup.exepid process 1900 setup.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
svchost.exedescription pid process Token: SeManageVolumePrivilege 3460 svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"1⤵
- Modifies firewall policy service
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:1900
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:3016
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:1932
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵PID:1996
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3460
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
127B
MD58ef9853d1881c5fe4d681bfb31282a01
SHA1a05609065520e4b4e553784c566430ad9736f19f
SHA2569228f13d82c3dc96b957769f6081e5bac53cffca4ffde0ba1e102d9968f184a2
SHA5125ddee931a08cfea5bb9d1c36355d47155a24d617c2a11d08364ffc54e593064011dee4fea8ac5b67029cab515d3071f0ba0422bb76af492a3115272ba8feb005