883f8a61824451a55c375d7ba9834aa3f9abe089aa6c16b45d42aed60c9ae6c5

Analysis

max time kernel
48s
max time network
33s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 21:28

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General

Target

883f8a61824451a55c375d7ba9834aa3f9abe089aa6c16b45d42aed60c9ae6c5.xls
Size

590KB
MD5

8c954e54c8fc867351868f9625b26985
SHA1

67c4309906205c9eaad5223294c8e3d9534b3a6d
SHA256

883f8a61824451a55c375d7ba9834aa3f9abe089aa6c16b45d42aed60c9ae6c5
SHA512

b53431eb04ed7477dc70292abc3471d4b4ff75397c22c6d2dd058a0840ef889ea5cbb06fe102ee099d20c0caf3e79e33b5e17c99d465cc696503318fa9a45016
SSDEEP

6144:+k3hOdsylKlgxopeiBNhZF+E+06g9AI9IRCA5IMZ/776bAXlsfajX5foeNtqEZDM:FWCA5R/75lsfar5AeNtpZD

Score

1^/10

Malware Config

Signatures

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

5032 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

5032 EXCEL.EXE
5032 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
5032	EXCEL.EXE
5032	EXCEL.EXE
5032	EXCEL.EXE
5032	EXCEL.EXE
5032	EXCEL.EXE
5032	EXCEL.EXE
5032	EXCEL.EXE
5032	EXCEL.EXE
5032	EXCEL.EXE
5032	EXCEL.EXE
5032	EXCEL.EXE
5032	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 5032 wrote to memory of 3568	5032	EXCEL.EXE	splwow64.exe
PID 5032 wrote to memory of 3568	5032	EXCEL.EXE	splwow64.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\883f8a61824451a55c375d7ba9834aa3f9abe089aa6c16b45d42aed60c9ae6c5.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:3568

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:3900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
1KB

MD5
7181e5ba9f6b6196a32fc0f8840b1730

SHA1
61e41b261f5fe0ee8c85dff90567339f2fe33cb3

SHA256
a924887ecc5bb7026c379e51703f53b000e37b7a8a8df82c056ee3184f35e682

SHA512
bdf12f611a3b2c63975bed1b3679a988fb7951d80e27779b41a76767c743cf73a28b24a76da52bfcf542e83a76e5c08fa6a1e12471f825d286adc0a4cc56f7ac

Download Submit
memory/5032-12-0x00007FFA06690000-0x00007FFA06885000-memory.dmp

Filesize
2.0MB

Download
memory/5032-0-0x00007FF9C6710000-0x00007FF9C6720000-memory.dmp

Filesize
64KB

Download
memory/5032-8-0x00007FFA06690000-0x00007FFA06885000-memory.dmp

Filesize
2.0MB

Download
memory/5032-4-0x00007FF9C6710000-0x00007FF9C6720000-memory.dmp

Filesize
64KB

Download
memory/5032-5-0x00007FF9C6710000-0x00007FF9C6720000-memory.dmp

Filesize
64KB

Download
memory/5032-9-0x00007FFA06690000-0x00007FFA06885000-memory.dmp

Filesize
2.0MB

Download
memory/5032-11-0x00007FFA06690000-0x00007FFA06885000-memory.dmp

Filesize
2.0MB

Download
memory/5032-10-0x00007FFA06690000-0x00007FFA06885000-memory.dmp

Filesize
2.0MB

Download
memory/5032-3-0x00007FF9C6710000-0x00007FF9C6720000-memory.dmp

Filesize
64KB

Download
memory/5032-2-0x00007FF9C6710000-0x00007FF9C6720000-memory.dmp

Filesize
64KB

Download
memory/5032-7-0x00007FFA06690000-0x00007FFA06885000-memory.dmp

Filesize
2.0MB

Download
memory/5032-13-0x00007FF9C4430000-0x00007FF9C4440000-memory.dmp

Filesize
64KB

Download
memory/5032-6-0x00007FFA06690000-0x00007FFA06885000-memory.dmp

Filesize
2.0MB

Download
memory/5032-14-0x00007FF9C4430000-0x00007FF9C4440000-memory.dmp

Filesize
64KB

Download
memory/5032-24-0x00007FFA06690000-0x00007FFA06885000-memory.dmp

Filesize
2.0MB

Download
memory/5032-25-0x00007FFA0672D000-0x00007FFA0672E000-memory.dmp

Filesize
4KB

Download
memory/5032-26-0x00007FFA06690000-0x00007FFA06885000-memory.dmp

Filesize
2.0MB

Download
memory/5032-27-0x00007FFA06690000-0x00007FFA06885000-memory.dmp

Filesize
2.0MB

Download
memory/5032-1-0x00007FFA0672D000-0x00007FFA0672E000-memory.dmp

Filesize
4KB

Download