c84c10614096a54afac834719606101d96904850c7411eec0c7449701f2644e2

Analysis

max time kernel
178s
max time network
215s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 14:22

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General

Target

c84c10614096a54afac834719606101d96904850c7411eec0c7449701f2644e2.xls
Size

148KB
MD5

5b6fad4e7fa43a2e71c6d6ed8c53b5df
SHA1

953dec1f799f9c9b266a6c3b6f3056c61ddcab3d
SHA256

c84c10614096a54afac834719606101d96904850c7411eec0c7449701f2644e2
SHA512

d9182ca83888b6659512b0b75dc72cb88ee13175e7e093d762ba5b8bf69ea70c54072cd31a15a7607e77bb0017dbf964b6f13e896cd1f3129af95397611020a4
SSDEEP

3072:l03X+T9d0jEejZp8uSX81eZVtnYB3Y92bd3QmfmCvbluVXA8MOqnwup2jcc0lbxn:IX+T9d0jEejZp8uSX81eZVtnYB3Y92pw

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	2260	1100	cmd.exe	83
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3816	1100	cmd.exe	83
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4644	1100	cmd.exe	83

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\C7585E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1100	EXCEL.EXE

Suspicious use of SetWindowsHookEx 16 IoCs

pid	Process
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 2260	1100	EXCEL.EXE	86
PID 1100 wrote to memory of 2260	1100	EXCEL.EXE	86
PID 1100 wrote to memory of 3816	1100	EXCEL.EXE	88
PID 1100 wrote to memory of 3816	1100	EXCEL.EXE	88
PID 1100 wrote to memory of 4644	1100	EXCEL.EXE	90
PID 1100 wrote to memory of 4644	1100	EXCEL.EXE	90
PID 2260 wrote to memory of 4896	2260	cmd.exe	92
PID 2260 wrote to memory of 4896	2260	cmd.exe	92

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4896	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\c84c10614096a54afac834719606101d96904850c7411eec0c7449701f2644e2.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:1100
- 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:2260
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:4896
- 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:3816
- 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:4644

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/1100-138-0x00007FFD141D0000-0x00007FFD141E0000-memory.dmp

Filesize
64KB

Download
memory/1100-144-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1100-134-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1100-135-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1100-136-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1100-137-0x00007FFD141D0000-0x00007FFD141E0000-memory.dmp

Filesize
64KB

Download
memory/1100-133-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1100-147-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1100-132-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1100-146-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1100-145-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads