828f0156ae852886281809e14b96e9c55a6dbeb6a75eb512530f7fd0bea02038

Analysis

max time kernel
100s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
31-03-2023 01:52

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General

Target

d79dbb236bd0f95b5fc44b696c7dc098b42519931778080040a73b9eaf57ee86.xls
Size

1.0MB
MD5

a864acb83b3a238490b5019c40695ee6
SHA1

813dcac587b12d1b197772493ad1ba521bdf7992
SHA256

d79dbb236bd0f95b5fc44b696c7dc098b42519931778080040a73b9eaf57ee86
SHA512

340d6bdad0494baa89a08d1c6923d112928734f1f3fea8eb74ea3088a5a4fe17f4395f463ea5c395e6523900dddeeaff13a1afc96ad0c7fd219b148b3dea63d3
SSDEEP

24576:oLK3SSMMednEwakAmmjmRakAmmjmF+MXUK3eT2222222222222222222222i2LN:oLKBM7aaoeaaoW+MXih

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

4348 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4348 EXCEL.EXE
4348 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4348	EXCEL.EXE
4348	EXCEL.EXE
4348	EXCEL.EXE
4348	EXCEL.EXE
4348	EXCEL.EXE
4348	EXCEL.EXE
4348	EXCEL.EXE
4348	EXCEL.EXE
4348	EXCEL.EXE
4348	EXCEL.EXE
4348	EXCEL.EXE
4348	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\d79dbb236bd0f95b5fc44b696c7dc098b42519931778080040a73b9eaf57ee86.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4348

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Content.MSO\4779C78B.emf
Filesize
1.4MB

MD5
5c65827565e89d5357d6f81294701c19

SHA1
600aa1899bdc58d12671774e84033366dc931c04

SHA256
dec6f35ceb48260f3ba4e6487c48d3f97b274f2eff29cab00c2c7e677eef4b4f

SHA512
052c177c606d30f4f3b658f60bb3643fffec498cc8fa931b4380aa6b93ac20fa9ef4600645740e99ba2f6d43e333fe783378d14395132819d6fb44787aad196a

Download Submit
memory/4348-133-0x00007FFD50310000-0x00007FFD50320000-memory.dmp

Filesize
64KB

Download
memory/4348-134-0x00007FFD50310000-0x00007FFD50320000-memory.dmp

Filesize
64KB

Download
memory/4348-135-0x00007FFD50310000-0x00007FFD50320000-memory.dmp

Filesize
64KB

Download
memory/4348-136-0x00007FFD50310000-0x00007FFD50320000-memory.dmp

Filesize
64KB

Download
memory/4348-137-0x00007FFD50310000-0x00007FFD50320000-memory.dmp

Filesize
64KB

Download
memory/4348-138-0x00007FFD4DE80000-0x00007FFD4DE90000-memory.dmp

Filesize
64KB

Download
memory/4348-139-0x00007FFD4DE80000-0x00007FFD4DE90000-memory.dmp

Filesize
64KB

Download
memory/4348-174-0x00007FFD50310000-0x00007FFD50320000-memory.dmp

Filesize
64KB

Download
memory/4348-175-0x00007FFD50310000-0x00007FFD50320000-memory.dmp

Filesize
64KB

Download
memory/4348-176-0x00007FFD50310000-0x00007FFD50320000-memory.dmp

Filesize
64KB

Download
memory/4348-177-0x00007FFD50310000-0x00007FFD50320000-memory.dmp

Filesize
64KB

Download