Analysis
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max time kernel
39s -
max time network
46s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
16-06-2024 19:46
Behavioral task
behavioral1
Sample
desync.exe
Resource
win7-20240221-en
General
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Target
desync.exe
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Size
7.6MB
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MD5
7a15474ad603daa01797d79bb62e175a
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SHA1
888862cdab8da414fb6840c5eebcdd61ce669e21
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SHA256
81caa3adef4253955af7d8e935d6c6d3c3fb6134fdb9a37e46a3da4695136154
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SHA512
569bba67fcaf64560409cbde165136bc5148de426314b74d89c33112098d75066c7afb8bb4767ed47fa068c78f1eca8abe5a45907960be4c584045b4c4bef41d
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SSDEEP
196608:la3mPC8AJfo8ARlJwONkYCamxR2qL9feH0WFOktv0S:I3mC8ufdWlJwONkDamr2qLpeBOYv0S
Malware Config
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
Processes:
desync.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ desync.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
desync.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion desync.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion desync.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
desync.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation desync.exe -
Processes:
resource yara_rule behavioral2/memory/2456-0-0x00007FF77FB30000-0x00007FF780D4B000-memory.dmp themida behavioral2/memory/2456-2-0x00007FF77FB30000-0x00007FF780D4B000-memory.dmp themida behavioral2/memory/2456-4-0x00007FF77FB30000-0x00007FF780D4B000-memory.dmp themida behavioral2/memory/2456-3-0x00007FF77FB30000-0x00007FF780D4B000-memory.dmp themida behavioral2/memory/2456-6-0x00007FF77FB30000-0x00007FF780D4B000-memory.dmp themida behavioral2/memory/2456-7-0x00007FF77FB30000-0x00007FF780D4B000-memory.dmp themida behavioral2/memory/2456-5-0x00007FF77FB30000-0x00007FF780D4B000-memory.dmp themida behavioral2/memory/2456-22-0x00007FF77FB30000-0x00007FF780D4B000-memory.dmp themida behavioral2/memory/2456-23-0x00007FF77FB30000-0x00007FF780D4B000-memory.dmp themida behavioral2/memory/2456-25-0x00007FF77FB30000-0x00007FF780D4B000-memory.dmp themida behavioral2/memory/2456-26-0x00007FF77FB30000-0x00007FF780D4B000-memory.dmp themida -
Processes:
desync.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA desync.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
desync.exepid process 2456 desync.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 3292 powershell.exe 3292 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3292 powershell.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
desync.exedescription pid process target process PID 2456 wrote to memory of 3292 2456 desync.exe powershell.exe PID 2456 wrote to memory of 3292 2456 desync.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\desync.exe"C:\Users\Admin\AppData\Local\Temp\desync.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
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:2456 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" /C Get-Service -Name WpnUserService* | Restart-Service -Force2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3292
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82