8aaea0584bbc9a96080d1d3084fef91cc170cdb6143e99eba62c77a51d12a8d1

Analysis

max time kernel
149s
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
28-11-2022 01:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

8aaea0584bbc9a96080d1d3084fef91cc170cdb6143e99eba62c77a51d12a8d1.xls
Size

102KB
MD5

394f354ce29c6b174d87705f18e15f6e
SHA1

86340e61109cad89c5781da3177d91e2556b8fe5
SHA256

8aaea0584bbc9a96080d1d3084fef91cc170cdb6143e99eba62c77a51d12a8d1
SHA512

4b29aa04949da268242b50a75f6e315f47754d48e7554efb8f920692d08d2ed1d402dd9ac5607a45aaf7fd89491a4a0d5be1c7d3ff7a3ed3cc933611a8ea2dc5
SSDEEP

1536:qmmmCmhF9kTE86dok3mXU7oqeHrZ95MHDquWVvrzQ7ITkwMlJx23LV88ScJtXwBl:U0WVvrzQ7ITkwHRjhJtXw3H

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

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

Processes:

cmd.execmd.execmd.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	1992	4624	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4908	4624	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1492	4624	cmd.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\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4624 EXCEL.EXE
Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

EXCEL.EXE

pid process

4624 EXCEL.EXE
4624 EXCEL.EXE
4624 EXCEL.EXE
4624 EXCEL.EXE
4624 EXCEL.EXE
4624 EXCEL.EXE
4624 EXCEL.EXE
4624 EXCEL.EXE
4624 EXCEL.EXE

pid	process
4624	EXCEL.EXE

pid	process
4624	EXCEL.EXE
4624	EXCEL.EXE
4624	EXCEL.EXE
4624	EXCEL.EXE
4624	EXCEL.EXE
4624	EXCEL.EXE
4624	EXCEL.EXE
4624	EXCEL.EXE
4624	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4624 wrote to memory of 1992	4624	EXCEL.EXE	cmd.exe
PID 4624 wrote to memory of 1992	4624	EXCEL.EXE	cmd.exe
PID 4624 wrote to memory of 4908	4624	EXCEL.EXE	cmd.exe
PID 4624 wrote to memory of 4908	4624	EXCEL.EXE	cmd.exe
PID 4624 wrote to memory of 1492	4624	EXCEL.EXE	cmd.exe
PID 4624 wrote to memory of 1492	4624	EXCEL.EXE	cmd.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2956 attrib.exe

pid	process
2956	attrib.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\8aaea0584bbc9a96080d1d3084fef91cc170cdb6143e99eba62c77a51d12a8d1.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4624

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:1992

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2956

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:4908

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:1492

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1492-141-0x0000000000000000-mapping.dmp

Download
memory/1992-139-0x0000000000000000-mapping.dmp

Download
memory/4624-132-0x00007FFD62AD0000-0x00007FFD62AE0000-memory.dmp

Filesize
64KB

Download
memory/4624-133-0x00007FFD62AD0000-0x00007FFD62AE0000-memory.dmp

Filesize
64KB

Download
memory/4624-134-0x00007FFD62AD0000-0x00007FFD62AE0000-memory.dmp

Filesize
64KB

Download
memory/4624-135-0x00007FFD62AD0000-0x00007FFD62AE0000-memory.dmp

Filesize
64KB

Download
memory/4624-136-0x00007FFD62AD0000-0x00007FFD62AE0000-memory.dmp

Filesize
64KB

Download
memory/4624-137-0x00007FFD60880000-0x00007FFD60890000-memory.dmp

Filesize
64KB

Download
memory/4624-138-0x00007FFD60880000-0x00007FFD60890000-memory.dmp

Filesize
64KB

Download
memory/4908-140-0x0000000000000000-mapping.dmp

Download