8eb7fc6fae70414a26ebac96139e3709ac30181d5fa4a8e3c5bc05100b92f453

Analysis

max time kernel
136s
max time network
149s
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, 22:25

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General

Target

8eb7fc6fae70414a26ebac96139e3709ac30181d5fa4a8e3c5bc05100b92f453.xls
Size

452KB
MD5

ab917860b185db2791423ab0d0cc86ca
SHA1

c3e0c35fc0af669ad7b21e6516e65a004c63e6ea
SHA256

8eb7fc6fae70414a26ebac96139e3709ac30181d5fa4a8e3c5bc05100b92f453
SHA512

0b5329f44e636682596f82a0d95456dad3304606aab1d1d1b0dc003293ba42f46e2a05932396e582446c7e9482acec0b2ca9b3b3fed288cdbde191b82f056800
SSDEEP

6144:XV3CJQ+AmxHflB3OJLhCiExDoT2mY3mEavZUDPomi17b:XVIH3ehHo0TEiuYb

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	460	1056	cmd.exe	73
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4016	1056	cmd.exe	73
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4924	1056	cmd.exe	73

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\0EC65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1056	EXCEL.EXE

Suspicious use of SetWindowsHookEx 16 IoCs

pid	Process
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 460	1056	EXCEL.EXE	84
PID 1056 wrote to memory of 460	1056	EXCEL.EXE	84
PID 1056 wrote to memory of 4016	1056	EXCEL.EXE	86
PID 1056 wrote to memory of 4016	1056	EXCEL.EXE	86
PID 1056 wrote to memory of 4924	1056	EXCEL.EXE	88
PID 1056 wrote to memory of 4924	1056	EXCEL.EXE	88
PID 460 wrote to memory of 592	460	cmd.exe	90
PID 460 wrote to memory of 592	460	cmd.exe	90

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
592	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\8eb7fc6fae70414a26ebac96139e3709ac30181d5fa4a8e3c5bc05100b92f453.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:1056
- 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:460
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:592
- 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:4016
- 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:4924

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/1056-138-0x00007FF9E17C0000-0x00007FF9E17D0000-memory.dmp

Filesize
64KB

Download
memory/1056-135-0x00007FF9E3F10000-0x00007FF9E3F20000-memory.dmp

Filesize
64KB

Download
memory/1056-136-0x00007FF9E3F10000-0x00007FF9E3F20000-memory.dmp

Filesize
64KB

Download
memory/1056-137-0x00007FF9E17C0000-0x00007FF9E17D0000-memory.dmp

Filesize
64KB

Download
memory/1056-132-0x00007FF9E3F10000-0x00007FF9E3F20000-memory.dmp

Filesize
64KB

Download
memory/1056-134-0x00007FF9E3F10000-0x00007FF9E3F20000-memory.dmp

Filesize
64KB

Download
memory/1056-133-0x00007FF9E3F10000-0x00007FF9E3F20000-memory.dmp

Filesize
64KB

Download
memory/1056-144-0x00007FF9E3F10000-0x00007FF9E3F20000-memory.dmp

Filesize
64KB

Download
memory/1056-145-0x00007FF9E3F10000-0x00007FF9E3F20000-memory.dmp

Filesize
64KB

Download
memory/1056-146-0x00007FF9E3F10000-0x00007FF9E3F20000-memory.dmp

Filesize
64KB

Download
memory/1056-147-0x00007FF9E3F10000-0x00007FF9E3F20000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads