6ac1170d8142effec54bcc63349c7d37006fe6297c1cb278b2b15beec522e081

Analysis

max time kernel
127s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2022, 22:27

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General

Target

6ac1170d8142effec54bcc63349c7d37006fe6297c1cb278b2b15beec522e081.xls
Size

515KB
MD5

f42fa13091421fe26e7f8881459fde60
SHA1

a1735484b93352663ca1cbd8d13624865ced6d8b
SHA256

6ac1170d8142effec54bcc63349c7d37006fe6297c1cb278b2b15beec522e081
SHA512

cc3723337425ccf18d1554c3d2279833d8f809ef016f31fa58a9485d30ae29ae9a67126aa3e2ef6a224f25a429bb222550218fbef0ad0a76f65e32b2ffbfd019
SSDEEP

6144:X6ShxGIXOqbudNDfqm0UR2AQcSY3LbzaE:XxsWRbud1bhd73Ln

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	3820	1644	cmd.exe	38
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1064	1644	cmd.exe	38
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4044	1644	cmd.exe	38

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\BFB65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1644	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE
1644	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 3820	1644	EXCEL.EXE	82
PID 1644 wrote to memory of 3820	1644	EXCEL.EXE	82
PID 1644 wrote to memory of 4044	1644	EXCEL.EXE	85
PID 1644 wrote to memory of 4044	1644	EXCEL.EXE	85
PID 1644 wrote to memory of 1064	1644	EXCEL.EXE	84
PID 1644 wrote to memory of 1064	1644	EXCEL.EXE	84
PID 3820 wrote to memory of 1060	3820	cmd.exe	88
PID 3820 wrote to memory of 1060	3820	cmd.exe	88

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1060	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\6ac1170d8142effec54bcc63349c7d37006fe6297c1cb278b2b15beec522e081.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1644
- 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:3820
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:1060
- 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:1064
- 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:4044

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/1644-138-0x00007FFD656B0000-0x00007FFD656C0000-memory.dmp

Filesize
64KB

Download
memory/1644-135-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1644-136-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1644-137-0x00007FFD656B0000-0x00007FFD656C0000-memory.dmp

Filesize
64KB

Download
memory/1644-132-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1644-133-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1644-134-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1644-144-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1644-145-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1644-146-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1644-147-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads