348fe1a8c108823f2d59a220b6ebc1f25ec880510eed7b92b7c87019e2c37303

General

Target

348fe1a8c108823f2d59a220b6ebc1f25ec880510eed7b92b7c87019e2c37303.xls
Size

102KB
MD5

72221e92226545ef348dbd98a30d5df0
SHA1

c5535424d95708ccd090602e4a2657a5cbbf2d21
SHA256

348fe1a8c108823f2d59a220b6ebc1f25ec880510eed7b92b7c87019e2c37303
SHA512

f531655581de629f9e9232b749ae4d36ac4df8afeedabee713868c3614d1f9f15e2ba98e62583e619e16f3158d5a6e8d4435fe173f4e2e869f35ce12ce8a0113
SSDEEP

1536:YBBBtZB4F3+/RSWVbrzQ7IdG7kR623wc88ScJtXwoqfWms:hWVbrzQ7Iuk9pjhJtXwHW

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	3808	3204	cmd.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4104	3204	cmd.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3656	3204	cmd.exe	81

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

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\CEA65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3204	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3204	EXCEL.EXE
3204	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3204	EXCEL.EXE
3204	EXCEL.EXE
3204	EXCEL.EXE
3204	EXCEL.EXE
3204	EXCEL.EXE
3204	EXCEL.EXE
3204	EXCEL.EXE
3204	EXCEL.EXE
3204	EXCEL.EXE
3204	EXCEL.EXE
3204	EXCEL.EXE
3204	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3204 wrote to memory of 3656	3204	EXCEL.EXE	89
PID 3204 wrote to memory of 3656	3204	EXCEL.EXE	89
PID 3204 wrote to memory of 4104	3204	EXCEL.EXE	88
PID 3204 wrote to memory of 4104	3204	EXCEL.EXE	88
PID 3204 wrote to memory of 3808	3204	EXCEL.EXE	85
PID 3204 wrote to memory of 3808	3204	EXCEL.EXE	85
PID 3656 wrote to memory of 976	3656	cmd.exe	90
PID 3656 wrote to memory of 976	3656	cmd.exe	90

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
976	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\348fe1a8c108823f2d59a220b6ebc1f25ec880510eed7b92b7c87019e2c37303.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3204
- 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:3808
- 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:4104
- 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:3656
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3204-138-0x00007FFBDA980000-0x00007FFBDA990000-memory.dmp

Filesize
64KB

Download
memory/3204-144-0x00007FFBDCCD0000-0x00007FFBDCCE0000-memory.dmp

Filesize
64KB

Download
memory/3204-135-0x00007FFBDCCD0000-0x00007FFBDCCE0000-memory.dmp

Filesize
64KB

Download
memory/3204-136-0x00007FFBDCCD0000-0x00007FFBDCCE0000-memory.dmp

Filesize
64KB

Download
memory/3204-137-0x00007FFBDA980000-0x00007FFBDA990000-memory.dmp

Filesize
64KB

Download
memory/3204-132-0x00007FFBDCCD0000-0x00007FFBDCCE0000-memory.dmp

Filesize
64KB

Download
memory/3204-146-0x00007FFBDCCD0000-0x00007FFBDCCE0000-memory.dmp

Filesize
64KB

Download
memory/3204-147-0x00007FFBDCCD0000-0x00007FFBDCCE0000-memory.dmp

Filesize
64KB

Download
memory/3204-145-0x00007FFBDCCD0000-0x00007FFBDCCE0000-memory.dmp

Filesize
64KB

Download
memory/3204-133-0x00007FFBDCCD0000-0x00007FFBDCCE0000-memory.dmp

Filesize
64KB

Download
memory/3204-134-0x00007FFBDCCD0000-0x00007FFBDCCE0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads