Analysis
- max time kernel
160s - max time network
180s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
05/05/2023, 18:45
Static task
static1
Behavioral task
behavioral1
Sample
a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d.exe
Resource
win7-20230220-en
7 signatures
150 seconds
General
- Target a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d.exe
- Size 3.0MB
- Sample230505-xeef5agg3t
- SHA256 a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d
- MD5 4b32941cd92e048e6a2d16c6069edf62
- SHA1 5d167b4588575ffbc7a06cd9fa22552dced38951
- SHA512 8b5c75642960991648fd18fb2c5421f8d082f0982a4b5950dd091547dc53943fccb287a404593fbb08282188c3c94d75e05c28f1a58f83a5b6559f34a516442e
- SSDEEP 98304:6fFbrdnYUGkQqOSlBk1G4QBeKW0wnpTX5OIX:6fFbhBMqOxFgW3nRr
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
aurora
C2
-
94.142.138.215:8081
Signatures
- Detects any file with a triage score of 10 4 IoCs
This file has been assigned a triage score of 10, indicating a high likelihood of malicious behavior.
resource yara_rule behavioral2/memory/388-135-0x0000000000780000-0x0000000000FA2000-memory.dmp triage_score_10 behavioral2/memory/388-136-0x0000000000780000-0x0000000000FA2000-memory.dmp triage_score_10 behavioral2/memory/388-137-0x0000000000780000-0x0000000000FA2000-memory.dmp triage_score_10 behavioral2/memory/388-138-0x0000000000780000-0x0000000000FA2000-memory.dmp triage_score_10 - Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d.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 a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 388 a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 388 a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d.exe 388 a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d.exe"C:\Users\Admin\AppData\Local\Temp\a1dc10eaa3d8eb09dfcb58123a48484639301d86165a8e3c76747cc04a2bf67d.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:388