b10a6be4568ec1330359c9d803d45f846f346a2bff42f854461874cd34dbe9de

Analysis

max time kernel
173s
max time network
185s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 02:54

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General

Target

b10a6be4568ec1330359c9d803d45f846f346a2bff42f854461874cd34dbe9de.xls
Size

102KB
MD5

71328b6f585f9031135ba4ced98fd576
SHA1

a8b9f4b56ea9142560b1c50697d3588f14564efb
SHA256

b10a6be4568ec1330359c9d803d45f846f346a2bff42f854461874cd34dbe9de
SHA512

1de1f4d43deb460c63751cd58c3e61848569fc12f9c23ff0100bc985ef76c5b7e32a4bcc608f07bf5eb07d1876af6d82453c9101af8702ad7525653cb40229c2
SSDEEP

3072:bTQn6v7yZmspH7+7alMisPI4ukoRWGNTxfAxo2jcc0lbxOrLHDJtXwvd:vQn6v7yZmspH7+7alMisPI4ukoRWGNTB

Score

1^/10

Malware Config

Signatures

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3796 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3796 EXCEL.EXE
3796 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3796	EXCEL.EXE
3796	EXCEL.EXE
3796	EXCEL.EXE
3796	EXCEL.EXE
3796	EXCEL.EXE
3796	EXCEL.EXE
3796	EXCEL.EXE
3796	EXCEL.EXE
3796	EXCEL.EXE
3796	EXCEL.EXE
3796	EXCEL.EXE
3796	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3796 wrote to memory of 1228	3796	EXCEL.EXE	splwow64.exe
PID 3796 wrote to memory of 1228	3796	EXCEL.EXE	splwow64.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\b10a6be4568ec1330359c9d803d45f846f346a2bff42f854461874cd34dbe9de.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:3796

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1228

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

memory/1228-139-0x0000000000000000-mapping.dmp

Download
memory/3796-132-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmp

Filesize
64KB

Download
memory/3796-133-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmp

Filesize
64KB

Download
memory/3796-134-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmp

Filesize
64KB

Download
memory/3796-135-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmp

Filesize
64KB

Download
memory/3796-136-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmp

Filesize
64KB

Download
memory/3796-137-0x00007FF97AC00000-0x00007FF97AC10000-memory.dmp

Filesize
64KB

Download
memory/3796-138-0x00007FF97AC00000-0x00007FF97AC10000-memory.dmp

Filesize
64KB

Download