Analysis
-
max time kernel
145s -
max time network
147s -
platform
windows10-1703_x64 -
resource
win10-20220901-en -
resource tags
arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system -
submitted
09/11/2022, 19:10
Behavioral task
behavioral1
Sample
83a4e44b20057157c021fb16df5c258fa6b4742d356ecdb8b69a8cafa1e1faf4.xls
Resource
win10-20220901-en
Behavioral task
behavioral2
Sample
83a4e44b20057157c021fb16df5c258fa6b4742d356ecdb8b69a8cafa1e1faf4.xls
Resource
win10-20220901-en
General
-
Target
83a4e44b20057157c021fb16df5c258fa6b4742d356ecdb8b69a8cafa1e1faf4.xls
-
Size
91KB
-
MD5
e0bd7b40af13bed6bd3c7909ab3150a1
-
SHA1
1fd12f96e6e11e7c16bd39f30bf9ba4a9f9aa91d
-
SHA256
83a4e44b20057157c021fb16df5c258fa6b4742d356ecdb8b69a8cafa1e1faf4
-
SHA512
63fb7fe71b49f357ff578ec2171c2eed425453d4263c6b253197e907a50a6432a236776ac3612127afcb601e95ec6b1666fe4bed9d29c688bd4282e62c395e22
-
SSDEEP
1536:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg2bCXuZH4gb4CEn9J4Zmcvp:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgu
Malware Config
Extracted
http://bundlefilm.com/headers/lkfBH3Czw9CjEW07P2/
http://camsanparke.net/wp-content/h2Ja5bwB03hnyfCb/
http://royreid.co.uk/wp-content/dCwG/
https://cs.com.sg/admin/a1lR5wu/
Signatures
-
Process spawned unexpected child process 4 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5024 2820 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4180 2820 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3160 2820 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4444 2820 regsvr32.exe 65 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2820 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2820 wrote to memory of 5024 2820 EXCEL.EXE 68 PID 2820 wrote to memory of 5024 2820 EXCEL.EXE 68 PID 2820 wrote to memory of 4180 2820 EXCEL.EXE 69 PID 2820 wrote to memory of 4180 2820 EXCEL.EXE 69 PID 2820 wrote to memory of 3160 2820 EXCEL.EXE 70 PID 2820 wrote to memory of 3160 2820 EXCEL.EXE 70 PID 2820 wrote to memory of 4444 2820 EXCEL.EXE 71 PID 2820 wrote to memory of 4444 2820 EXCEL.EXE 71
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\83a4e44b20057157c021fb16df5c258fa6b4742d356ecdb8b69a8cafa1e1faf4.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2820 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:5024
-
-
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4180
-
-
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3160
-
-
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4444
-