93bc322cfd5157cae01505a0062d412e0a2e2085835f473dd52b91685ce8ae80

Analysis

max time kernel
189s
max time network
202s
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, 19:58

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General

Target

ɽи¼ùԱ.xls
Size

87KB
MD5

e8d103a9aedae5e4fa29c442c0688c44
SHA1

c4ccc7fe49fc8597c5d07b00725ddc6d64d0246e
SHA256

733646f77e4d6fa78aa78ba0df7cc16e5716ac549775acc3340c3b25de2e6b48
SHA512

a9c543dc18de680ac7941621098e29014f5a5ab437f7981047998108f8e81edbf2bc285436ea2196502dc6d1c1e4dbfb94dc67b7e6c368d1d8735381a46c6356
SSDEEP

1536:OoooEvG/awH0U1ic7U2jcc0lbxOvTgZgoMY7nJdJoOd7cJKXweb82:iGkQ7U2jcc0lbxOr4tAJKXwk82

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2876	3016	cmd.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4924	3016	cmd.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1356	3016	cmd.exe	82

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

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

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

pid	Process
3016	EXCEL.EXE

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
3016	EXCEL.EXE
3016	EXCEL.EXE
3016	EXCEL.EXE
3016	EXCEL.EXE
3016	EXCEL.EXE
3016	EXCEL.EXE
3016	EXCEL.EXE
3016	EXCEL.EXE
3016	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2876	3016	EXCEL.EXE	92
PID 3016 wrote to memory of 2876	3016	EXCEL.EXE	92
PID 3016 wrote to memory of 4924	3016	EXCEL.EXE	94
PID 3016 wrote to memory of 4924	3016	EXCEL.EXE	94
PID 3016 wrote to memory of 1356	3016	EXCEL.EXE	95
PID 3016 wrote to memory of 1356	3016	EXCEL.EXE	95
PID 2876 wrote to memory of 1244	2876	cmd.exe	98
PID 2876 wrote to memory of 1244	2876	cmd.exe	98

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1244	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\ɽи¼ùԱ.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3016
- 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:2876
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:1244
- 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:4924
- 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:1356

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

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Downloads

memory/3016-132-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmp

Filesize
64KB

Download
memory/3016-134-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmp

Filesize
64KB

Download
memory/3016-133-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmp

Filesize
64KB

Download
memory/3016-135-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmp

Filesize
64KB

Download
memory/3016-136-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmp

Filesize
64KB

Download
memory/3016-137-0x00007FF97AC00000-0x00007FF97AC10000-memory.dmp

Filesize
64KB

Download
memory/3016-138-0x00007FF97AC00000-0x00007FF97AC10000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads