Resubmissions
19/03/2024, 18:11
240319-wsv6csag29903/03/2024, 11:21
240303-nf56sshf9v903/03/2024, 11:15
240303-ncwg7aaa939Analysis
- max time kernel
25s - max time network
20s - platform
windows10-1703_x64 - resource
win10-20240221-en - resource tags
arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system - submitted
19/03/2024, 18:11
Behavioral task
behavioral1
Sample
o_0/READ ME!.txt
Resource
win10-20240221-en
0 signatures
150 seconds
Behavioral task
behavioral2
Sample
o_0/cheeto.exe
Resource
win10-20240221-en
8 signatures
150 seconds
General
- Target o_0/cheeto.exe
- Size 4.0MB
- Sample240319-wsv6csag29
- SHA256 d5bd2d1990de46d98907c10c535cfe81ed10a9682fac36e089946ccc14ce3e0c
- MD5 1d9d9eb4caf4a92c2f2f1bd44ab1b695
- SHA1 d61006c87b7b567566e1c06f2cad209380ff70be
- SHA512 558d7ec35fb8480917a8a37b8e9aef44a5cb58be0c1842be8d9f6224250273a7c6f9f4d64306a38630d76ecd5533bec4cc5115c7e320495087fc91109f5e5093
- SSDEEP 98304:3VAyZVmCs9rhcw3M//OfYts2SsJXkn7IG/HPiduYf:uyZVmCs9rhlSm0siJdeJE
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ cheeto.exe - Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\frAQBc8Wsa1xVPfv\ImagePath = "\\??\\C:\\Users\\Admin\\AppData\\Local\\Temp\\frAQBc8Wsa1xVPfv" cheeto.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 cheeto.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion cheeto.exe -
resource yara_rule behavioral2/memory/5116-0-0x00007FF7ECC70000-0x00007FF7ED6CA000-memory.dmp themida behavioral2/memory/5116-2-0x00007FF7ECC70000-0x00007FF7ED6CA000-memory.dmp themida behavioral2/memory/5116-3-0x00007FF7ECC70000-0x00007FF7ED6CA000-memory.dmp themida behavioral2/memory/5116-4-0x00007FF7ECC70000-0x00007FF7ED6CA000-memory.dmp themida behavioral2/memory/5116-5-0x00007FF7ECC70000-0x00007FF7ED6CA000-memory.dmp themida behavioral2/memory/5116-6-0x00007FF7ECC70000-0x00007FF7ED6CA000-memory.dmp themida behavioral2/memory/5116-7-0x00007FF7ECC70000-0x00007FF7ED6CA000-memory.dmp themida behavioral2/memory/5116-8-0x00007FF7ECC70000-0x00007FF7ED6CA000-memory.dmp themida behavioral2/memory/5116-16-0x00007FF7ECC70000-0x00007FF7ED6CA000-memory.dmp themida behavioral2/memory/5116-18-0x00007FF7ECC70000-0x00007FF7ED6CA000-memory.dmp themida -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA cheeto.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 5116 cheeto.exe - Suspicious behavior: LoadsDriver 1 IoCs
pid Process 5116 cheeto.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeLoadDriverPrivilege 5116 cheeto.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\o_0\cheeto.exe"C:\Users\Admin\AppData\Local\Temp\o_0\cheeto.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Sets service image path in registry
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:5116
-
C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:2848