fce258aaff67f1ebf4c69bf8f19d48771428a983ef9c2b8811664a40f3d80cbf

Analysis

max time kernel
118s
max time network
152s
platform
windows10_x64
resource
win10-en-20210920
submitted
21-10-2021 18:00

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Report Analysis Logs

General

Target

Tax Receipts.xlsx
Size

369KB
MD5

bfcb6ecc43e9babe0ec5c17079353890
SHA1

e74276419e06d32ce456a8a44fe801ecd24fbfa4
SHA256

fce258aaff67f1ebf4c69bf8f19d48771428a983ef9c2b8811664a40f3d80cbf
SHA512

0340ae2f1901daf2298f81d2e56443b368bdbcf702f226543853b311c86f13ce310c804ce8b1135db607d5a9e39613c57aac0d0bc96b4e22a1300464214870d2

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

4056 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4056	EXCEL.EXE
4056	EXCEL.EXE
4056	EXCEL.EXE
4056	EXCEL.EXE
4056	EXCEL.EXE
4056	EXCEL.EXE
4056	EXCEL.EXE
4056	EXCEL.EXE
4056	EXCEL.EXE
4056	EXCEL.EXE
4056	EXCEL.EXE
4056	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\Tax Receipts.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4056

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/4056-115-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/4056-116-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/4056-117-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/4056-118-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/4056-119-0x00000220B85D0000-0x00000220B85D2000-memory.dmp

Filesize
8KB

Download
memory/4056-120-0x00000220B85D0000-0x00000220B85D2000-memory.dmp

Filesize
8KB

Download
memory/4056-121-0x00000220B85D0000-0x00000220B85D2000-memory.dmp

Filesize
8KB

Download
memory/4056-127-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download