685666b8280e0926c41eb2df3f8f5a97b82a327b020878f448e680eaa175ffc9

Analysis

max time kernel
101s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2023 07:16

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General

Target

685666b8280e0926c41eb2df3f8f5a97b82a327b020878f448e680eaa175ffc9.xls
Size

97KB
MD5

e869b7ab1ed5f8e49c5e0bbe845d3dfd
SHA1

d6a41f72840b3ef7d0fc91168389ada49e0fc086
SHA256

685666b8280e0926c41eb2df3f8f5a97b82a327b020878f448e680eaa175ffc9
SHA512

82a2be060dedd23f61e3af9af4e78cdae142beefa7e0067917c1055acfe11538307e291c2e2bde5a23249266d2f0c6c679eb78e0834cd11fd30d128cc8f71ebb
SSDEEP

3072:q3zk3hbdlylKsgqopeJBWhZFGkE+cig9HpFoh0b71t1P85YWgRxom:qjk3hbdlylKsgqopeJBWhZFVE+Xg9H3L

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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

4544 EXCEL.EXE
Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

EXCEL.EXE

pid process

4544 EXCEL.EXE
4544 EXCEL.EXE
4544 EXCEL.EXE
4544 EXCEL.EXE
4544 EXCEL.EXE
4544 EXCEL.EXE
4544 EXCEL.EXE
4544 EXCEL.EXE
4544 EXCEL.EXE

pid	process
4544	EXCEL.EXE

pid	process
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4544 wrote to memory of 2100	4544	EXCEL.EXE	splwow64.exe
PID 4544 wrote to memory of 2100	4544	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\685666b8280e0926c41eb2df3f8f5a97b82a327b020878f448e680eaa175ffc9.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4544

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:2100

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:660

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2100-139-0x0000000000000000-mapping.dmp

Download
memory/4544-132-0x00007FF866290000-0x00007FF8662A0000-memory.dmp

Filesize
64KB

Download
memory/4544-133-0x00007FF866290000-0x00007FF8662A0000-memory.dmp

Filesize
64KB

Download
memory/4544-134-0x00007FF866290000-0x00007FF8662A0000-memory.dmp

Filesize
64KB

Download
memory/4544-135-0x00007FF866290000-0x00007FF8662A0000-memory.dmp

Filesize
64KB

Download
memory/4544-136-0x00007FF866290000-0x00007FF8662A0000-memory.dmp

Filesize
64KB

Download
memory/4544-137-0x00007FF864080000-0x00007FF864090000-memory.dmp

Filesize
64KB

Download
memory/4544-138-0x00007FF864080000-0x00007FF864090000-memory.dmp

Filesize
64KB

Download
memory/4544-141-0x00007FF866290000-0x00007FF8662A0000-memory.dmp

Filesize
64KB

Download
memory/4544-142-0x00007FF866290000-0x00007FF8662A0000-memory.dmp

Filesize
64KB

Download
memory/4544-143-0x00007FF866290000-0x00007FF8662A0000-memory.dmp

Filesize
64KB

Download
memory/4544-144-0x00007FF866290000-0x00007FF8662A0000-memory.dmp

Filesize
64KB

Download