Analysis
-
max time kernel
148s -
max time network
148s -
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, 19:12
Behavioral task
behavioral1
Sample
673b59f757ef341d828ec79553a3fa43c73a1ded66050c063adc842233f3e000.xls
Resource
win10-20220901-en
Behavioral task
behavioral2
Sample
673b59f757ef341d828ec79553a3fa43c73a1ded66050c063adc842233f3e000.xls
Resource
win10-20220901-en
General
-
Target
673b59f757ef341d828ec79553a3fa43c73a1ded66050c063adc842233f3e000.xls
-
Size
91KB
-
MD5
aeddeb4c52d372f13acbf8ed9b805773
-
SHA1
b860e8925f809b4e3007b4792c4e1e71fa3070e9
-
SHA256
673b59f757ef341d828ec79553a3fa43c73a1ded66050c063adc842233f3e000
-
SHA512
a176b4b9bb8d3ea4e963d4ba02ce09d7339827c66637cf6d218ee94abb9e5da6d2731d624b6ddcc74680242092ff85366252081857cca21a4eee0265e05bd864
-
SSDEEP
1536:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg2bCXuZH4gb4CEn9J4ZGcvp:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgO
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 3088 4732 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4604 4732 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4436 4732 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4668 4732 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4732 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4732 EXCEL.EXE 4732 EXCEL.EXE 4732 EXCEL.EXE 4732 EXCEL.EXE 4732 EXCEL.EXE 4732 EXCEL.EXE 4732 EXCEL.EXE 4732 EXCEL.EXE 4732 EXCEL.EXE 4732 EXCEL.EXE 4732 EXCEL.EXE 4732 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4732 wrote to memory of 3088 4732 EXCEL.EXE 68 PID 4732 wrote to memory of 3088 4732 EXCEL.EXE 68 PID 4732 wrote to memory of 4604 4732 EXCEL.EXE 69 PID 4732 wrote to memory of 4604 4732 EXCEL.EXE 69 PID 4732 wrote to memory of 4436 4732 EXCEL.EXE 70 PID 4732 wrote to memory of 4436 4732 EXCEL.EXE 70 PID 4732 wrote to memory of 4668 4732 EXCEL.EXE 71 PID 4732 wrote to memory of 4668 4732 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\673b59f757ef341d828ec79553a3fa43c73a1ded66050c063adc842233f3e000.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4732 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3088
-
-
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4604
-
-
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4436
-
-
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4668
-