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 3 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

Has a screenshot:

False

Contains macros:

True

CAPE Sandbox

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/117854/

ClamAV Detected

Detection(s):

TwinWave.EvilDoc.Excel4MagicPalmersArcade.20201207.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.Excel4DragoTrainingMontage.20210204.UNOFFICIAL

Alert

Create hunting rule

Dr. Web vxCube Malware

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

DNS request

Creating a process with a hidden window

Sending an HTTP GET request

Launching a process by exploiting the app vulnerability

DocGuard Malicious

Result

Verdict:

Malicious

File Type:

Legacy Office File

Link:

https://app.docguard.net/661472b71badf2d2b85cfa9f65c1c5982d0497a7d31f90281f377ee67abb6408/results/dashboard

Payload URLs

URL

File name

http://www.iec.ch

WorkBook

Document image

Image:

Download PNG

InQuest MALICIOUS

Result

Verdict:

MALICIOUS

Details

Macro Execution Coercion

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

Autostarting Excel Macro Sheet

Excel contains Macrosheet logic that will trigger automatically upon document open.

Joe Sandbox Hidden Macro 4.0 Trickbot

Result

Threat name:

Hidden Macro 4.0 Trickbot

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/611915

Signature

Allocates memory in foreign processes

C2 URLs / IPs found in malware configuration

Delayed program exit found

Document exploit detected (drops PE files)

Document exploit detected (process start blacklist hit)

Document exploit detected (UrlDownloadToFile)

Drops PE files to the user root directory

Found evasive API chain (trying to detect sleep duration tampering with parallel thread)

Found Excel 4.0 Macro with suspicious formulas

Found malicious Excel 4.0 Macro

Found malware configuration

May check the online IP address of the machine

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

Office process drops PE file

Sigma detected: Microsoft Office Product Spawning Windows Shell

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

Tries to detect virtualization through RDTSC time measurements

Writes to foreign memory regions

Yara detected Trickbot

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/661472b71badf2d2b85cfa9f65c1c5982d0497a7d31f90281f377ee67abb6408/

Spamhaus Hash Blocklist Malicious file

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=mykhfny3vxznfoc47kpwlqoftawqjf5h2mpzaka7g57om6v3mqea._file

Hatching Triage trickbot

Result

Malware family:

trickbot

Alert

Create hunting rule

Score:

  10/10

Tags:

family:trickbot botnet:rob59 banker macro trojan xlm

Link:

https://tria.ge/reports/210218-ntatek5wpj/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Looks up external IP address via web service

Loads dropped DLL

Templ.dll packer

Process spawned unexpected child process

Trickbot

Malware Config

C2 Extraction:

194.5.249.156:443
142.202.191.164:443
193.8.194.96:443
45.155.173.242:443
108.170.20.75:443
185.163.45.138:443
94.140.114.136:443
134.119.186.202:443
200.52.147.93:443
45.230.244.20:443
186.250.157.116:443
186.137.85.76:443
36.94.62.207:443
182.253.107.34:443

Dropper Extraction:

http://artifkt.com/okmobi/certificate.php

VirusTotal

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

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/1018209/

  

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/117854/

Comments