Analysis
-
max time kernel
70s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20220718-en -
resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system -
submitted
02-08-2022 12:51
Behavioral task
behavioral1
Sample
8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe
Resource
win7-20220718-en
General
-
Target
8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe
-
Size
5.9MB
-
MD5
5d94ec2c9e1a5a48cbc4d82f5961129f
-
SHA1
71b9fea881448d0c307a484d5c6e9331962903bd
-
SHA256
8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f
-
SHA512
a8df474ab58358a805713c771093807c0c03319bb7d3607aba323c7f705c881e3294229f2c6d8c7f5d49f9c163287f72f057083a6071e9a6f7f011ac1eec6147
Malware Config
Signatures
-
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
Processes:
8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe -
Loads dropped DLL 2 IoCs
Processes:
8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exepid process 2032 8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe 2032 8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe -
Processes:
resource yara_rule behavioral1/memory/2032-55-0x0000000000400000-0x0000000000A48000-memory.dmp themida behavioral1/memory/2032-56-0x0000000000400000-0x0000000000A48000-memory.dmp themida behavioral1/memory/2032-57-0x0000000000400000-0x0000000000A48000-memory.dmp themida behavioral1/memory/2032-60-0x0000000000400000-0x0000000000A48000-memory.dmp themida behavioral1/memory/2032-61-0x0000000000400000-0x0000000000A48000-memory.dmp themida -
Processes:
8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
Processes
-
C:\Users\Admin\AppData\Local\Temp\8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe"C:\Users\Admin\AppData\Local\Temp\8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
\Users\Admin\AppData\Local\Temp\nst2B18.tmp\INetC.dllFilesize
25KB
MD540d7eca32b2f4d29db98715dd45bfac5
SHA1124df3f617f562e46095776454e1c0c7bb791cc7
SHA25685e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9
SHA5125fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d
-
\Users\Admin\AppData\Local\Temp\nst2B18.tmp\xml.dllFilesize
1.4MB
MD5e66a3b91188288bbda063862b190c165
SHA1bc0c0660317ac7b65567fb075c41703689dd8e5e
SHA256ef857426115169f4cb5b48dcf95417ac82776ae738409737e0fa2716f4fb23d6
SHA512f265e460db0b88c8a295f5e3b28d1100c1bba1b3a2f07a83726e4aa122eacf5315b6eec9342f1b012013d4915f1e227cb579c462b61b8695239cababa64dc724
-
memory/2032-54-0x0000000076071000-0x0000000076073000-memory.dmpFilesize
8KB
-
memory/2032-55-0x0000000000400000-0x0000000000A48000-memory.dmpFilesize
6.3MB
-
memory/2032-56-0x0000000000400000-0x0000000000A48000-memory.dmpFilesize
6.3MB
-
memory/2032-57-0x0000000000400000-0x0000000000A48000-memory.dmpFilesize
6.3MB
-
memory/2032-60-0x0000000000400000-0x0000000000A48000-memory.dmpFilesize
6.3MB
-
memory/2032-61-0x0000000000400000-0x0000000000A48000-memory.dmpFilesize
6.3MB