MalwareBazaar Database

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id

OLE dump

MalwareBazaar was able to identify 13 sections in this file using oledump:

OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

Intelligence

File Origin

Vendor Threat Intelligence

BitDam Malicious

Verdict:

Malicious

File type:

application/vnd.ms-excel.sheet.macroEnabled.12

Has a screenshot:

False

Contains macros:

True

CAPE Sandbox

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/117333/

ClamAV Detected

Detection(s):

SecuriteInfo.com.Heur.5390.1780.UNOFFICIAL

Alert

Create hunting rule

Dr. Web vxCube Malware

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a process with a hidden window

Launching a process

DNS request

Sending an HTTP GET request

Creating a file in the %AppData% directory

Creating a process from a recently created file

Creating a file in the %temp% directory

Using the Windows Management Instrumentation requests

Sending a custom TCP request

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Launching the process to change the firewall settings

Running batch commands by exploiting the app vulnerability

DocGuard Suspicious

Result

Verdict:

Suspicious

File Type:

Excel File with Macro

Link:

https://app.docguard.net/d8151875b740aaaa169d95c2c4593579a1d57e371b2a97602a02a5496de7fd8f/results/dashboard

Document image

Image:

Download PNG

Joe Sandbox malicious

Result

Threat name:

Unknown

Detection:

malicious

Classification:

expl.evad

Score:

76 / 100

Link:

https://www.joesandbox.com/analysis/608981

Signature

Document contains an embedded VBA with many string operations indicating source code obfuscation

Document exploit detected (process start blacklist hit)

Encrypted powershell cmdline option found

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Sigma detected: Microsoft Office Product Spawning Windows Shell

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d8151875b740aaaa169d95c2c4593579a1d57e371b2a97602a02a5496de7fd8f/

ReversingLabs TitaniumCloud Document-Excel.Downloader.Heuristic

Threat name:

Document-Excel.Downloader.Heuristic

Alert

Create hunting rule

Status:

Malicious

First seen:

2021-02-16 14:07:07 UTC

AV detection:

14 of 47 (29.79%)

Threat level:

  2/5

Spamhaus Hash Blocklist Malicious file

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=3akrq5nxicvkufu5sxbmiwjvpgq5k7rxdmvjoybkaksus3ph7whq._file

Hatching Triage Malicious

Result

Malware family:

n/a

Score:

  10/10

Tags:

evasion macro persistence

Link:

https://tria.ge/reports/210216-jq1zafdrma/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Office loads VBA resources, possible macro or embedded object present

Enumerates physical storage devices

Adds Run key to start application

Loads dropped DLL

Blocklisted process makes network request

Executes dropped EXE

Modifies Windows Firewall

Process spawned unexpected child process

Malware Config

Dropper Extraction:

http://www.zhuoxinwei.com/work.exe

VirusTotal

Please note that we are no longer able to provide a coverage score for Virus Total.

YOROI YOMI Malicious File

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/d8151875b740aaaa169d95c2c4593579a1d57e371b2a97602a02a5496de7fd8f

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  

URLhaus

https://urlhaus.abuse.ch/url/1012890/

  

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/117333/

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