0a452a45e781a7ff0348f618f594dfcdb0a83ef22b9120aba5a006862ee4893d

Analysis

max time kernel
160s
max time network
174s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2023 19:22

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General

Target

0a452a45e781a7ff0348f618f594dfcdb0a83ef22b9120aba5a006862ee4893d.xls
Size

36KB
MD5

7693610a8fb10370d9fd6f2f53157fe0
SHA1

93aa8e85f2fe437a7d1e7f30c693e9854aadec49
SHA256

0a452a45e781a7ff0348f618f594dfcdb0a83ef22b9120aba5a006862ee4893d
SHA512

9bea01393333aee180eb49f52736c0b053daabb02c202f288b6e2525e07a45e20bf6f7a1ee340d689b9f2341e3a04e3f104eed2ceaf5fe7b408633882e969cce
SSDEEP

768:xPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJp9Ajxr8Itd5lsr1zVJR:5ok3hbdlylKsgqopeJBWhZFGkE+cL2Ny

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

explorer.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1440	2128	explorer.exe	EXCEL.EXE

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Modifies registry class 1 IoCs

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings explorer.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2128 EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	explorer.exe

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE
2128	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEexplorer.exe

description	pid	process	target process
PID 2128 wrote to memory of 1440	2128	EXCEL.EXE	explorer.exe
PID 2128 wrote to memory of 1440	2128	EXCEL.EXE	explorer.exe
PID 548 wrote to memory of 2120	548	explorer.exe	WScript.exe
PID 548 wrote to memory of 2120	548	explorer.exe	WScript.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\0a452a45e781a7ff0348f618f594dfcdb0a83ef22b9120aba5a006862ee4893d.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2128

C:\Windows\explorer.exe
explorer.exe C:\Users\Public\Documents\tWqygLx.vbs
2⤵
- Process spawned unexpected child process
PID:1440

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:548

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\tWqygLx.vbs"
2⤵
PID:2120

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Documents\tWqygLx.vbs

Filesize
599B

MD5
9aa26e9dcd1a52dfc127fcb807a4f13d

SHA1
23cdc5bec07293f34cc680720a71f564e9105cea

SHA256
56e63ff51f51f470eae777ed6c4ab84295a6dd0de4a6b25b9e4192c709a74655

SHA512
b3b7aaf5f4d2404673c001ffceeb7424e43720887b6c0e12faac21cd7a85cd872173f58a98a2c1ac4c33d3c2b5127146d3383382334899a9010247dbf7c664ef

Download Submit
memory/1440-139-0x0000000000000000-mapping.dmp

Download
memory/2120-141-0x0000000000000000-mapping.dmp

Download
memory/2128-132-0x00007FFFBCD90000-0x00007FFFBCDA0000-memory.dmp

Filesize
64KB

Download
memory/2128-133-0x00007FFFBCD90000-0x00007FFFBCDA0000-memory.dmp

Filesize
64KB

Download
memory/2128-134-0x00007FFFBCD90000-0x00007FFFBCDA0000-memory.dmp

Filesize
64KB

Download
memory/2128-135-0x00007FFFBCD90000-0x00007FFFBCDA0000-memory.dmp

Filesize
64KB

Download
memory/2128-136-0x00007FFFBCD90000-0x00007FFFBCDA0000-memory.dmp

Filesize
64KB

Download
memory/2128-137-0x00007FFFBAAF0000-0x00007FFFBAB00000-memory.dmp

Filesize
64KB

Download
memory/2128-138-0x00007FFFBAAF0000-0x00007FFFBAB00000-memory.dmp

Filesize
64KB

Download