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 12 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/msword

Has a screenshot:

False

Contains macros:

True

ClamAV Detected

Detection(s):

TwinWave.EvilDoc.GOStringGamesBangBang.20200908.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.HTTP

Alert

Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.START-BITSTRANSFER.210729.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD..EXE.211019.UNOFFICIAL

Alert

Create hunting rule

DocGuard Malicious

Result

Verdict:

Malicious

File Type:

Legacy Word File with Macro

Link:

https://app.docguard.net/8c51bd57966ec69de3ab44f909272ba471ba7aa29728e182689e715747a3f507/results/dashboard

Payload URLs

URL

File name

PROJECT.MODULE1.ANIMALFOCUS

1Table

Document image

Image:

Download PNG

FileScan.IO Malicious

Verdict:

Malicious

Threat level:

  10/10

Confidence:

100%

Tags:

cmd macros macros-on-open phishing powershell

Link:

https://www.filescan.io/uploads/618e2e06a00afa9663a4e794/reports/5fa111f1-dc73-4461-9830-4b6961903094/overview

InQuest MALICIOUS

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/8c51bd57966ec69de3ab44f909272ba471ba7aa29728e182689e715747a3f507

Details

Macro with Startup Hook

Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.

Document With Few Pages

Document contains between one and three pages of content. Most malicious documents are sparse in page count.

Macro with File System Write

Detected macro logic that can write data to the file system.

Macro Execution Coercion

Detected a document that appears to social engineer the user into activating embedded logic.

Joe Sandbox AgentTesla Vidar

Result

Threat name:

AgentTesla Vidar

Alert

Create hunting rule

Detection:

malicious

Classification:

expl.evad.troj.spyw

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/887977

Signature

.NET source code contains very large array initializations

Document contains an embedded VBA macro with suspicious strings

Document exploit detected (creates forbidden files)

Document exploit detected (process start blacklist hit)

Found malware configuration

Injects a PE file into a foreign processes

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

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

Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Sigma detected: Execution from Suspicious Folder

Sigma detected: Microsoft Office Product Spawning Windows Shell

Tries to harvest and steal browser information (history, passwords, etc)

Yara detected AgentTesla

Yara detected Obfuscated Powershell

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8c51bd57966ec69de3ab44f909272ba471ba7aa29728e182689e715747a3f507/

ReversingLabs TitaniumCloud Document-Excel.Trojan.Woreflint

Threat name:

Document-Excel.Trojan.Woreflint

Alert

Create hunting rule

Status:

Malicious

First seen:

2021-11-12 01:22:27 UTC

AV detection:

10 of 44 (22.73%)

Threat level:

  5/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=rri32v4wn3dj3y5lit4qsjzlury3u6vcs4uodatitzyvor5d6udq._file

Hatching Triage arkei

Result

Malware family:

arkei

Alert

Create hunting rule

Score:

  10/10

Tags:

family:arkei botnet:default macro macro_on_action stealer xlm

Link:

https://tria.ge/reports/211112-k1lq4schh9/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Modifies registry class

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

Program crash

Drops file in Windows directory

Suspicious use of SetThreadContext

Loads dropped DLL

Downloads MZ/PE file

Arkei Stealer Payload

Arkei

Process spawned unexpected child process

Malware Config

C2 Extraction:

http://185.242.104.143/LBsx06U4hn.php

Dropper Extraction:

http://bit.do/mar-signature_request

VMRay Malicious

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/8c51bd57966e/report/overview.html

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/8c51bd57966ec69de3ab44f909272ba471ba7aa29728e182689e715747a3f507

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.

Comments