2d925c92357e7b3b64f9bc2e7a3bcf7789954ff0985b85a69ba5994c137c8476

Analysis

max time kernel
154s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
30-03-2023 23:34

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General

Target

SecuriteInfo.com.XF.AShadow.1205.24655.10395.xls
Size

35KB
MD5

dab402a1ceff08ec01fd4b7e7c25c5a2
SHA1

a4c2395af6716e5ff7e8db3b59bbcdef336f015d
SHA256

2d925c92357e7b3b64f9bc2e7a3bcf7789954ff0985b85a69ba5994c137c8476
SHA512

c737260d4654b4fa4c53c88b89cad82b76d5ba469e3491de5d717366d761df818a70e65bb5ff886f24451f943afd3f2c5420432fdb21579918a540df701e17d5
SSDEEP

768:nPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJ0AkyQpJxDpwcdEL/9su:Pok3hbdlylKsgqopeJBWhZFGkE+cL2N0

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	2440	540	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 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-1-5-21-144354903-2550862337-1367551827-1000_Classes\Local Settings explorer.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

540 EXCEL.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

EXCEL.EXE

pid process

540 EXCEL.EXE
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

EXCEL.EXE

pid process

540 EXCEL.EXE
540 EXCEL.EXE
540 EXCEL.EXE
540 EXCEL.EXE
540 EXCEL.EXE
540 EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000_Classes\Local Settings	explorer.exe

pid	process
540	EXCEL.EXE

pid	process
540	EXCEL.EXE

pid	process
540	EXCEL.EXE
540	EXCEL.EXE
540	EXCEL.EXE
540	EXCEL.EXE
540	EXCEL.EXE
540	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEexplorer.exe

description	pid	process	target process
PID 540 wrote to memory of 2440	540	EXCEL.EXE	explorer.exe
PID 540 wrote to memory of 2440	540	EXCEL.EXE	explorer.exe
PID 212 wrote to memory of 624	212	explorer.exe	WScript.exe
PID 212 wrote to memory of 624	212	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\SecuriteInfo.com.XF.AShadow.1205.24655.10395.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:540

C:\Windows\explorer.exe
explorer.exe C:\Users\Public\Documents\MSMR.vbs
2⤵
- Process spawned unexpected child process
PID:2440

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:212

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\MSMR.vbs"
2⤵
PID:624

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\MSMR.vbs
Filesize
537B

MD5
6fe8f6ec2d9355e459d791a61c729b9f

SHA1
5aedb90178c30857dcfceeaf8004eb7332a15838

SHA256
1d1df67644759015d925e3b68fcffce574f58448a84521125b1de4ff77ce5d04

SHA512
b665f2cef0a1e50e1f6c313d9abe6401a3b1f45000097f081e4b20e4b36a5bbe2f139232521f1fdbe6634447c10acd7940eab601a120e85562065e28fcde1458

Download Submit
memory/540-136-0x00007FF83AAD0000-0x00007FF83AAE0000-memory.dmp

Filesize
64KB

Download
memory/540-137-0x00007FF83AAD0000-0x00007FF83AAE0000-memory.dmp

Filesize
64KB

Download
memory/540-138-0x00007FF83AAD0000-0x00007FF83AAE0000-memory.dmp

Filesize
64KB

Download
memory/540-139-0x00007FF83AAD0000-0x00007FF83AAE0000-memory.dmp

Filesize
64KB

Download
memory/540-140-0x00007FF83AAD0000-0x00007FF83AAE0000-memory.dmp

Filesize
64KB

Download
memory/540-141-0x00007FF8383D0000-0x00007FF8383E0000-memory.dmp

Filesize
64KB

Download
memory/540-143-0x00007FF8383D0000-0x00007FF8383E0000-memory.dmp

Filesize
64KB

Download