877d48860111e3ddad04e136fffe054929e54d8d31444b84fe82f1f43b05518c

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
04-05-2022 06:54

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General

Target

decrypted.xlsx
Size

199KB
MD5

045fef4f9dae5162449cb0dadbf82df1
SHA1

6a26ce7489ad95c4fbae05df9d268ff5ceae5498
SHA256

bddcd8a65e3a8a5bccf3d39865ed76e7f69e357ca0094b8324f1f3501b975c91
SHA512

2d04bfbbe7036dea4e6ae2def0de54fcdecf118d2ec3bc509ecbbd13587f04f50b0a3970eedc682dc77eb1704248484d954612ac7065786e4f86c5e35ae4c222

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

2804 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.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\decrypted.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2804

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
1⤵
PID:2640

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/2804-130-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/2804-131-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/2804-132-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/2804-133-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/2804-134-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/2804-135-0x00007FF87EC50000-0x00007FF87EC60000-memory.dmp

Filesize
64KB

Download
memory/2804-136-0x00007FF87EC50000-0x00007FF87EC60000-memory.dmp

Filesize
64KB

Download
memory/2804-138-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/2804-139-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/2804-140-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/2804-141-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download