Analysis
-
max time kernel
142s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
22-12-2023 16:46
Static task
static1
Behavioral task
behavioral1
Sample
f7c1a6f33e729dbe8c4a3b68d8dac972.xlsm
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
f7c1a6f33e729dbe8c4a3b68d8dac972.xlsm
Resource
win10v2004-20231215-en
General
-
Target
f7c1a6f33e729dbe8c4a3b68d8dac972.xlsm
-
Size
6KB
-
MD5
f7c1a6f33e729dbe8c4a3b68d8dac972
-
SHA1
2ff4c719ec93dbf8cf4a1848646dfd810a7acc15
-
SHA256
7f4fce9d376351adf9307edb262a53474d0ec934c0b6e2c0b5b5516a3a519d45
-
SHA512
5cb7c03f88ebb5145d52ed6cbecd323b78950193bfa2e0310a91773c921f517d23be519d41b4844d207d14e3dcc641fc19ba6e16714fd955f74912cbbf174504
-
SSDEEP
192:NDSGuSAbrA2OmmfRT8UhHFBFYuVb98yqo++J:NhuhM2wd1FYIb98yj9
Malware Config
Extracted
http://46.17.98.187/index.php
Signatures
-
Process spawned suspicious child process 1 IoCs
This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1036 4272 DW20.EXE 38 -
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\ProcessorNameString dwwin.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz dwwin.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU dwwin.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4272 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4272 EXCEL.EXE 4272 EXCEL.EXE 4272 EXCEL.EXE 4272 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4272 EXCEL.EXE 4272 EXCEL.EXE 4272 EXCEL.EXE 4272 EXCEL.EXE 4272 EXCEL.EXE 4272 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4272 wrote to memory of 1036 4272 EXCEL.EXE 93 PID 4272 wrote to memory of 1036 4272 EXCEL.EXE 93 PID 1036 wrote to memory of 372 1036 DW20.EXE 94 PID 1036 wrote to memory of 372 1036 DW20.EXE 94
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\f7c1a6f33e729dbe8c4a3b68d8dac972.xlsm"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4272 -
C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 36522⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1036 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 36523⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:372
-
-