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15/04/2024, 19:48
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240415-wsg9hach357Analysis
- max time kernel
1804s - max time network
1707s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system - submitted
15/04/2024, 18:27
Behavioral task
behavioral1
Sample
archive-150424-06_04_17.rar
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
archive-150424-06_04_17.rar
Resource
win10v2004-20240412-en
Behavioral task
behavioral3
Sample
hash.bin
Resource
win10-20240404-en
Behavioral task
behavioral4
Sample
hash.bin
Resource
win10v2004-20240412-en
Behavioral task
behavioral5
Sample
setup.exe
Resource
win10-20240404-en
General
- Target setup.exe
- Size 700.0MB
- Sample240415-w315csfe2x
- SHA256 9383433f5dd673392f5dc01b0a8e84e063bf182cdb46fa49000a0b890f448240
- MD5 6d23d8dee5299700881a3e484eef8a9c
- SHA1 43b0c7e5bea63447ef78225d76fb47c6b29a4381
- SHA512 c98754f41c3f094dc4d39f486c9ac0b6f91977258ba1a347c0914c00e47bf995398a5c4572a8ea5d529a28c12a71b6bfb09869bd9187416e31978440b33a4e87
- SSDEEP 49152:GnjzX9RG5mnTDunfqNMP9Pyz6DMPCMTbzdZEmqyXVSY+wfdH1rFuzi56M/cH1oYI:OD9cSfX69PvQP1vFqyXHvsnM/PbQi
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- 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\VideoBiosVersion setup.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion setup.exe -
resource yara_rule behavioral5/memory/4408-0-0x00007FF7EECD0000-0x00007FF7EF534000-memory.dmp themida behavioral5/memory/4408-4-0x00007FF7EECD0000-0x00007FF7EF534000-memory.dmp themida behavioral5/memory/4408-6-0x00007FF7EECD0000-0x00007FF7EF534000-memory.dmp themida behavioral5/memory/4408-9-0x00007FF7EECD0000-0x00007FF7EF534000-memory.dmp themida behavioral5/memory/4408-10-0x00007FF7EECD0000-0x00007FF7EF534000-memory.dmp themida behavioral5/memory/4408-11-0x00007FF7EECD0000-0x00007FF7EF534000-memory.dmp themida behavioral5/memory/4408-12-0x00007FF7EECD0000-0x00007FF7EF534000-memory.dmp themida behavioral5/memory/4408-13-0x00007FF7EECD0000-0x00007FF7EF534000-memory.dmp themida behavioral5/memory/4408-22-0x00007FF7EECD0000-0x00007FF7EF534000-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 2 api.myip.com 3 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\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 File opened for modification C:\Windows\System32\GroupPolicy setup.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 4408 setup.exe
Processes
-
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:4408
-
\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:700
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:1980