7343c2f1c8923a7f77f71e8e4dcc9180212c13f5040fd1b513d4f26fd30bad41

Analysis

max time kernel
204s
max time network
221s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2023 19:21

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General

Target

7343c2f1c8923a7f77f71e8e4dcc9180212c13f5040fd1b513d4f26fd30bad41.xls
Size

36KB
MD5

4e258fc16f9f1bd37a59896f9d56beb4
SHA1

af80d1c572dcf5a227dc2bfa341433967242b11f
SHA256

7343c2f1c8923a7f77f71e8e4dcc9180212c13f5040fd1b513d4f26fd30bad41
SHA512

5d631619c1e47cafc03de68d62f11997189ac03313c8cb79dab3d5f2a070b5e27be8aa7e71e9dae23684d8f4e726a05a64e6c10626a4e4cf033d8e5551720597
SSDEEP

768:EPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJugTyRZLAHWl:gok3hbdlylKsgqopeJBWhZFGkE+cL2Nt

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	3568	4112	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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 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

Modifies registry class 1 IoCs

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings explorer.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4112 EXCEL.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

EXCEL.EXE

pid process

4112 EXCEL.EXE
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

EXCEL.EXE

pid process

4112 EXCEL.EXE
4112 EXCEL.EXE
4112 EXCEL.EXE
4112 EXCEL.EXE
4112 EXCEL.EXE
4112 EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings	explorer.exe

pid	process
4112	EXCEL.EXE

pid	process
4112	EXCEL.EXE

pid	process
4112	EXCEL.EXE
4112	EXCEL.EXE
4112	EXCEL.EXE
4112	EXCEL.EXE
4112	EXCEL.EXE
4112	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEexplorer.exe

description	pid	process	target process
PID 4112 wrote to memory of 3568	4112	EXCEL.EXE	explorer.exe
PID 4112 wrote to memory of 3568	4112	EXCEL.EXE	explorer.exe
PID 1844 wrote to memory of 2520	1844	explorer.exe	WScript.exe
PID 1844 wrote to memory of 2520	1844	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\7343c2f1c8923a7f77f71e8e4dcc9180212c13f5040fd1b513d4f26fd30bad41.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4112

C:\Windows\explorer.exe
explorer.exe C:\Users\Public\Documents\ZqE.vbs
2⤵
- Process spawned unexpected child process
PID:3568

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1844

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\ZqE.vbs"
2⤵
PID:2520

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Public\Documents\ZqE.vbs
Filesize
582B

MD5
5cf2d6f34115da3a0b7a544b1ff6d786

SHA1
8230062ac2ea9f7a92618ad14525295963c3a276

SHA256
2c06c4c3311cb2dc2d4a6420bbc756b477452390896170e8bc330c14064a02c9

SHA512
42cd47cd9b0555654c11de7c3f3079f42a3cf5d3cfe1849105bd2ce8773a5a28ad7dad036f0363de8f6ec3980b8780c438a0843575aebcd0e9add0ba4a8df705

Download Submit
memory/2520-141-0x0000000000000000-mapping.dmp

Download
memory/3568-139-0x0000000000000000-mapping.dmp

Download
memory/4112-132-0x00007FFC784B0000-0x00007FFC784C0000-memory.dmp

Filesize
64KB

Download
memory/4112-134-0x00007FFC784B0000-0x00007FFC784C0000-memory.dmp

Filesize
64KB

Download
memory/4112-133-0x00007FFC784B0000-0x00007FFC784C0000-memory.dmp

Filesize
64KB

Download
memory/4112-135-0x00007FFC784B0000-0x00007FFC784C0000-memory.dmp

Filesize
64KB

Download
memory/4112-136-0x00007FFC784B0000-0x00007FFC784C0000-memory.dmp

Filesize
64KB

Download
memory/4112-137-0x00007FFC762F0000-0x00007FFC76300000-memory.dmp

Filesize
64KB

Download
memory/4112-138-0x00007FFC762F0000-0x00007FFC76300000-memory.dmp

Filesize
64KB

Download