e6a7b74210342e244a5a0d692e49d205fded4f2d75357785ad971a31767923d0

Analysis

max time kernel
192s
max time network
230s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 19:17

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General

Target

e6a7b74210342e244a5a0d692e49d205fded4f2d75357785ad971a31767923d0.xls
Size

119KB
MD5

bc975b54fc42712a23b86c4f9cb072a3
SHA1

d19a838a3569ed2831248c2045b6d6f3b340442b
SHA256

e6a7b74210342e244a5a0d692e49d205fded4f2d75357785ad971a31767923d0
SHA512

4729ac1dac2a3547ed664fc5fa27dc3880f20285fcfae8a6fde6594c6302cabc119a869538bc1db904cc11c80085151af742ed6e0640a6d2241a32009bbffc47
SSDEEP

1536:UG666clXwWXbAI7cvwQq/B5ZJChyRfMZ95e+ejRBSWVbrzNKQsz7ITkR62lD5EeU:lx+NWVbrzcz7ITk9fEdJtXwY5kHGNv5

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	3156	3456	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4956	3456	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4360	3456	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

3456 EXCEL.EXE
Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

EXCEL.EXE

pid process

3456 EXCEL.EXE
3456 EXCEL.EXE
3456 EXCEL.EXE
3456 EXCEL.EXE
3456 EXCEL.EXE
3456 EXCEL.EXE
3456 EXCEL.EXE
3456 EXCEL.EXE
3456 EXCEL.EXE
3456 EXCEL.EXE

pid	process
3456	EXCEL.EXE

pid	process
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 3456 wrote to memory of 3156	3456	EXCEL.EXE	cmd.exe
PID 3456 wrote to memory of 3156	3456	EXCEL.EXE	cmd.exe
PID 3456 wrote to memory of 4956	3456	EXCEL.EXE	cmd.exe
PID 3456 wrote to memory of 4956	3456	EXCEL.EXE	cmd.exe
PID 3456 wrote to memory of 4360	3456	EXCEL.EXE	cmd.exe
PID 3456 wrote to memory of 4360	3456	EXCEL.EXE	cmd.exe
PID 3156 wrote to memory of 2844	3156	cmd.exe	attrib.exe
PID 3156 wrote to memory of 2844	3156	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2844 attrib.exe

pid	process
2844	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\e6a7b74210342e244a5a0d692e49d205fded4f2d75357785ad971a31767923d0.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3456
- 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
  - Suspicious use of WriteProcessMemory
  PID:3156
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:2844
- 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:4956
- 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:4360

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2844-142-0x0000000000000000-mapping.dmp

Download
memory/3156-139-0x0000000000000000-mapping.dmp

Download
memory/3456-132-0x00007FFA91030000-0x00007FFA91040000-memory.dmp

Filesize
64KB

Download
memory/3456-133-0x00007FFA91030000-0x00007FFA91040000-memory.dmp

Filesize
64KB

Download
memory/3456-134-0x00007FFA91030000-0x00007FFA91040000-memory.dmp

Filesize
64KB

Download
memory/3456-135-0x00007FFA91030000-0x00007FFA91040000-memory.dmp

Filesize
64KB

Download
memory/3456-136-0x00007FFA91030000-0x00007FFA91040000-memory.dmp

Filesize
64KB

Download
memory/3456-137-0x00007FFA8EFD0000-0x00007FFA8EFE0000-memory.dmp

Filesize
64KB

Download
memory/3456-138-0x00007FFA8EFD0000-0x00007FFA8EFE0000-memory.dmp

Filesize
64KB

Download
memory/4360-141-0x0000000000000000-mapping.dmp

Download
memory/4956-140-0x0000000000000000-mapping.dmp

Download