608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038

Analysis

max time kernel
143s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25/11/2022, 12:06

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General

Target

608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038.xls
Size

99KB
MD5

0351fb6e1b638462fc8f42af53d9fe41
SHA1

4b3b8deb885c65636855ead175234ca4f9d362fd
SHA256

608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038
SHA512

7d52a6edea19013efba87ea2fcca2a84021b2207b2e6c8d3233f06dc4c99171712417fa44ff81344ad34f32c8506ef9c504e52efe4bf893a5bb1154271e52dfe
SSDEEP

1536:PlllBJTYaYo9wXF0Fn2jcc0lbxOvTgZeb2cJtXwgMK:VKg2jcc0lbxOrRFJtXwhK

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	3420	4212	cmd.exe	78
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3472	4212	cmd.exe	78
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4120	4212	cmd.exe	78

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\1E575E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4212	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE
4212	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4212 wrote to memory of 3420	4212	EXCEL.EXE	81
PID 4212 wrote to memory of 3420	4212	EXCEL.EXE	81
PID 4212 wrote to memory of 3472	4212	EXCEL.EXE	82
PID 4212 wrote to memory of 3472	4212	EXCEL.EXE	82
PID 4212 wrote to memory of 4120	4212	EXCEL.EXE	84
PID 4212 wrote to memory of 4120	4212	EXCEL.EXE	84
PID 3420 wrote to memory of 2636	3420	cmd.exe	87
PID 3420 wrote to memory of 2636	3420	cmd.exe	87

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2636	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\608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038.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:4212
- 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:3420
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:2636
- 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:3472
- 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:4120

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/4212-135-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/4212-137-0x00007FF8A76C0000-0x00007FF8A76D0000-memory.dmp

Filesize
64KB

Download
memory/4212-138-0x00007FF8A76C0000-0x00007FF8A76D0000-memory.dmp

Filesize
64KB

Download
memory/4212-136-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/4212-132-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/4212-133-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/4212-134-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/4212-144-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/4212-145-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/4212-146-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/4212-147-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads