Analysis
-
max time kernel
109s -
max time network
118s -
platform
windows10-1703_x64 -
resource
win10-20230703-en -
resource tags
arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system -
submitted
04-08-2023 06:22
Static task
static1
Behavioral task
behavioral1
Sample
11f44531fb088d31307d87b01e8eabff/iroto.dll
Resource
win10-20230703-en
Behavioral task
behavioral2
Sample
11f44531fb088d31307d87b01e8eabff/iroto1.dll
Resource
win10-20230703-en
Behavioral task
behavioral3
Sample
11f44531fb088d31307d87b01e8eabff/research-1646684671.xls
Resource
win10-20230703-en
General
-
Target
11f44531fb088d31307d87b01e8eabff/research-1646684671.xls
-
Size
648KB
-
MD5
b775cd8be83696ca37b2fe00bcb40574
-
SHA1
60c8a9fdf2b24f8fb4913d4745a8557df5ff8e07
-
SHA256
1df68d55968bb9d2db4d0d18155188a03a442850ff543c8595166ac6987df820
-
SHA512
5ad4da8582bec3cc545e322cad2e356f59c4bfa5fe4ca90c0e781dd0e63a7aefbcc27b4045583232e4fdccffbc2bceb832b8d8e9ec3c070cf4b6559ca3c99a72
-
SSDEEP
6144:Hknl9oBdySAx76F6XeyTVtW/9Ny9ABnl5/PBgxOHjuM9Mn:jl5/WxIji
Malware Config
Extracted
https://nws.visionconsulting.ro/N1G1KCXA/dot.html
https://royalpalm.sparkblue.lk/vCNhYrq3Yg8/dot.html
Signatures
-
Process spawned unexpected child process 2 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
regsvr32.exeregsvr32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2656 972 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4288 972 regsvr32.exe EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 972 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 972 EXCEL.EXE 972 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE 972 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 972 wrote to memory of 2656 972 EXCEL.EXE regsvr32.exe PID 972 wrote to memory of 2656 972 EXCEL.EXE regsvr32.exe PID 972 wrote to memory of 4288 972 EXCEL.EXE regsvr32.exe PID 972 wrote to memory of 4288 972 EXCEL.EXE regsvr32.exe
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\11f44531fb088d31307d87b01e8eabff\research-1646684671.xls"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:972 -
C:\Windows\SYSTEM32\regsvr32.exeregsvr32 -s ..\iroto.dll2⤵
- Process spawned unexpected child process
PID:2656 -
C:\Windows\SYSTEM32\regsvr32.exeregsvr32 -s ..\iroto1.dll2⤵
- Process spawned unexpected child process
PID:4288