Analysis
-
max time kernel
129s -
max time network
131s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
10/11/2022, 10:44
Behavioral task
behavioral1
Sample
b4be302e36a83de5b151bf71f646395b79ab52b439bb4a8b67b9a13a7a0ecaab.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
b4be302e36a83de5b151bf71f646395b79ab52b439bb4a8b67b9a13a7a0ecaab.xls
Resource
win10-20220812-en
General
-
Target
b4be302e36a83de5b151bf71f646395b79ab52b439bb4a8b67b9a13a7a0ecaab.xls
-
Size
91KB
-
MD5
57e71466e77c5aa5e63681ce5280876f
-
SHA1
aa0daa529f2f86e04c97bf80019172749fef1f45
-
SHA256
b4be302e36a83de5b151bf71f646395b79ab52b439bb4a8b67b9a13a7a0ecaab
-
SHA512
a641663ecf1a3f94ebd80045a71c28d0d20e286291dafd6be7b5b1d75e0df4ab83a7f0845da360f1e35fc26c84a0199577a1c5759b4ae98473224f97e8b2462a
-
SSDEEP
1536:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgqbCXuZH4gb4CEn9J4Z3z3:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgG
Malware Config
Extracted
https://www.conceptagency.net/css/b8eaKN/
https://bencevendeghaz.hu/2zjoi/cwfKJOzA/
http://45.32.114.141/xilte/Uqm6Eysf3Hkjwh/
http://ruitaiwz.com/wp-admin/MXlp5IsUKwT1k0DtzT/
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 4464 1020 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4428 1020 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2332 1020 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3896 1020 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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 1020 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1020 wrote to memory of 4464 1020 EXCEL.EXE 68 PID 1020 wrote to memory of 4464 1020 EXCEL.EXE 68 PID 1020 wrote to memory of 4428 1020 EXCEL.EXE 69 PID 1020 wrote to memory of 4428 1020 EXCEL.EXE 69 PID 1020 wrote to memory of 2332 1020 EXCEL.EXE 70 PID 1020 wrote to memory of 2332 1020 EXCEL.EXE 70 PID 1020 wrote to memory of 3896 1020 EXCEL.EXE 71 PID 1020 wrote to memory of 3896 1020 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\b4be302e36a83de5b151bf71f646395b79ab52b439bb4a8b67b9a13a7a0ecaab.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1020 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4464
-
-
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4428
-
-
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:2332
-
-
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3896
-