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240415-wsg9hach35 7Analysis
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max time kernel
603s -
max time network
501s -
platform
windows10-1703_x64 -
resource
win10-20240319-en -
resource tags
arch:x64arch:x86image:win10-20240319-enlocale:en-usos:windows10-1703-x64system -
submitted
15-04-2024 18:35
Behavioral task
behavioral1
Sample
setup.exe
Resource
win10-20240319-en
General
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Target
setup.exe
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Size
700.0MB
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MD5
6d23d8dee5299700881a3e484eef8a9c
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SHA1
43b0c7e5bea63447ef78225d76fb47c6b29a4381
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SHA256
9383433f5dd673392f5dc01b0a8e84e063bf182cdb46fa49000a0b890f448240
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SHA512
c98754f41c3f094dc4d39f486c9ac0b6f91977258ba1a347c0914c00e47bf995398a5c4572a8ea5d529a28c12a71b6bfb09869bd9187416e31978440b33a4e87
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SSDEEP
49152:GnjzX9RG5mnTDunfqNMP9Pyz6DMPCMTbzdZEmqyXVSY+wfdH1rFuzi56M/cH1oYI:OD9cSfX69PvQP1vFqyXHvsnM/PbQi
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" setup.exe -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description 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.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion setup.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion setup.exe -
resource yara_rule behavioral1/memory/1636-0-0x00007FF746560000-0x00007FF746DC4000-memory.dmp themida behavioral1/memory/1636-6-0x00007FF746560000-0x00007FF746DC4000-memory.dmp themida behavioral1/memory/1636-8-0x00007FF746560000-0x00007FF746DC4000-memory.dmp themida behavioral1/memory/1636-9-0x00007FF746560000-0x00007FF746DC4000-memory.dmp themida behavioral1/memory/1636-10-0x00007FF746560000-0x00007FF746DC4000-memory.dmp themida behavioral1/memory/1636-11-0x00007FF746560000-0x00007FF746DC4000-memory.dmp themida behavioral1/memory/1636-12-0x00007FF746560000-0x00007FF746DC4000-memory.dmp themida behavioral1/memory/1636-13-0x00007FF746560000-0x00007FF746DC4000-memory.dmp themida behavioral1/memory/1636-22-0x00007FF746560000-0x00007FF746DC4000-memory.dmp themida -
description 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.
flow ioc 3 api.myip.com 4 api.myip.com 6 ipinfo.io 7 ipinfo.io -
Drops file in System32 directory 4 IoCs
description 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
pid Process 1636 setup.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:1636
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:408
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:3104