Behavioral Report

Analysis

max time kernel
167s
max time network
192s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2023 19:21

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Report Files Registry Network Processes Mutex Misc

General

Target

48a3e9b980b570c4414685c37a4cce6a81e32005c825559bc6049f5045385242.xls
Size

36KB
MD5

7e9e621951f87f91f15444709b64d660
SHA1

5491ca45fc97c4e1f309626c0cd36fea28eea568
SHA256

48a3e9b980b570c4414685c37a4cce6a81e32005c825559bc6049f5045385242
SHA512

4431957e06dea4928d4c99322c74d03620ea87e3b1b84ace1f24e9d12372bc9d406525970fcad41c7031d8eab4b65861a9c45cc11a57b05e1db5a4f3d70bda5a
SSDEEP

768:GPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJMCn/8n0tYadTp1Nz46n:6ok3hbdlylKsgqopeJBWhZFGkE+cL2Nq

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

explorer.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4768	4540	explorer.exe	EXCEL.EXE

Blocklisted process makes network request 2 IoCs

Processes:

WScript.exe

flow pid process

47 456 WScript.exe
56 456 WScript.exe

flow	pid	process
47	456	WScript.exe
56	456	WScript.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

TTPs:

Query Registry System Information Discovery

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

TTPs:

Query Registry System Information Discovery

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

Modifies registry class 1 IoCs

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings explorer.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4540 EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings	explorer.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4540	EXCEL.EXE
4540	EXCEL.EXE
4540	EXCEL.EXE
4540	EXCEL.EXE
4540	EXCEL.EXE
4540	EXCEL.EXE
4540	EXCEL.EXE
4540	EXCEL.EXE
4540	EXCEL.EXE
4540	EXCEL.EXE
4540	EXCEL.EXE
4540	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEexplorer.exe

description	pid	process	target process
PID 4540 wrote to memory of 4768	4540	EXCEL.EXE	explorer.exe
PID 4540 wrote to memory of 4768	4540	EXCEL.EXE	explorer.exe
PID 1152 wrote to memory of 456	1152	explorer.exe	WScript.exe
PID 1152 wrote to memory of 456	1152	explorer.exe	WScript.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\48a3e9b980b570c4414685c37a4cce6a81e32005c825559bc6049f5045385242.xls"

Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory

PID:4540

C:\Windows\explorer.exe

explorer.exe C:\Users\Public\Documents\L8eI.vbs

Process spawned unexpected child process

PID:4768

C:\Windows\explorer.exe

C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding

Modifies registry class
Suspicious use of WriteProcessMemory

PID:1152

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\L8eI.vbs"

Blocklisted process makes network request

PID:456

Network

MITRE ATT&CK Matrix

Collection

Command and Control

Credential Access

Defense Evasion

Discovery

Query Registry

T1012

System Information Discovery

T1082

Execution

Exfiltration

Impact

Initial Access

Lateral Movement

Persistence

Privilege Escalation

Replay Monitor

00:00 00:00

Downloads

C:\Users\Public\Documents\L8eI.vbs
Filesize
570B

MD5
17803c6b6961acec9b27d7a4b025444a

SHA1
3986beb10d337ad145a62b1df574e1f00851c23b

SHA256
7d2630ec3008c8706c58f1f6ec00f9922e80892b56e98c742467475fc3ad2d02

SHA512
653cbc455fea8e3f64505b833934af5b06aa1c175b4d5a456caecd534fcd418f560193f2e41c80a36e675c5cfa17040446e0d22c5d4e5dbd44154218113310cf

Download Submit
memory/456-141-0x0000000000000000-mapping.dmp

Download
memory/4540-132-0x00007FFB54410000-0x00007FFB54420000-memory.dmp

Filesize
64KB

Download
memory/4540-134-0x00007FFB54410000-0x00007FFB54420000-memory.dmp

Filesize
64KB

Download
memory/4540-133-0x00007FFB54410000-0x00007FFB54420000-memory.dmp

Filesize
64KB

Download
memory/4540-135-0x00007FFB54410000-0x00007FFB54420000-memory.dmp

Filesize
64KB

Download
memory/4540-136-0x00007FFB54410000-0x00007FFB54420000-memory.dmp

Filesize
64KB

Download
memory/4540-137-0x00007FFB51AB0000-0x00007FFB51AC0000-memory.dmp

Filesize
64KB

Download
memory/4540-138-0x00007FFB51AB0000-0x00007FFB51AC0000-memory.dmp

Filesize
64KB

Download
memory/4768-139-0x0000000000000000-mapping.dmp

Download