5c34c14865f4a98f6cc623710e445f479175aeafafcb55614b139fb61cff9de7

Analysis

max time kernel
144s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-es
resource tags

arch:x64arch:x86image:win10v2004-20230220-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
18-03-2023 21:13

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General

Target

44e65a641fb970031c5efed324676b5018803e0a768608d3e186152102615795.xlsx
Size

2.1MB
MD5

c9ad9506bcccfaa987ff9fc11b91698d
SHA1

e788183a2a021f74a21f609e514bb63c4ef2fe49
SHA256

44e65a641fb970031c5efed324676b5018803e0a768608d3e186152102615795
SHA512

509c7c387810399b4a35371b1ae77733184299ee631f13b70e1582a9bed32c8eebaea79beb8ce7bf07ac8d3fcd7d09fd460a461266e073d6d2e6acc5e3bc68b2
SSDEEP

49152:hEK5fuBxYw1iHM+eP4yFIIFd52Mp21N5xb/CVBqCwj7IjLQc1U4l:SK5f6xYSl+VMy8G5ZC6CCIQc1/l

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

4964 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4964 EXCEL.EXE
4964 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4964	EXCEL.EXE
4964	EXCEL.EXE
4964	EXCEL.EXE
4964	EXCEL.EXE
4964	EXCEL.EXE
4964	EXCEL.EXE
4964	EXCEL.EXE
4964	EXCEL.EXE
4964	EXCEL.EXE
4964	EXCEL.EXE
4964	EXCEL.EXE
4964	EXCEL.EXE

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\44e65a641fb970031c5efed324676b5018803e0a768608d3e186152102615795.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4964

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/4964-133-0x00007FF876990000-0x00007FF8769A0000-memory.dmp

Filesize
64KB

Download
memory/4964-135-0x00007FF876990000-0x00007FF8769A0000-memory.dmp

Filesize
64KB

Download
memory/4964-134-0x00007FF876990000-0x00007FF8769A0000-memory.dmp

Filesize
64KB

Download
memory/4964-136-0x00007FF876990000-0x00007FF8769A0000-memory.dmp

Filesize
64KB

Download
memory/4964-137-0x00007FF876990000-0x00007FF8769A0000-memory.dmp

Filesize
64KB

Download
memory/4964-138-0x00007FF874360000-0x00007FF874370000-memory.dmp

Filesize
64KB

Download
memory/4964-139-0x00007FF874360000-0x00007FF874370000-memory.dmp

Filesize
64KB

Download