Malicious PDF — malware analysis report

Static analysis result for SHA-256 241d800da55d3fbc…

MALICIOUS

PDF

43.5 KB Created: 2020-03-28 03:11:29 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7c5196b246cb33ae476c61137b672c5c SHA-1: 7bf992a1f860756a9a725db951347b9433b6f5fb SHA-256: 241d800da55d3fbcf39f9ecfa97e4ee0ceea0feba1a9e258dda57994c565cde4
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The SE_LOLBIN_RUN_COMMAND heuristic indicates that the document contains instructions for executing Windows scripting tools. The primary attack pattern involves directing users to a vast network of linked PDF files, likely for SEO poisoning or to distribute further malicious content. No specific malware family was identified.

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://youthunitedproject.com/uploads/1/3/0/6/130639439/130639439.html#propiedades+del+te+sangre+de+drago
    • http://missoulaautotinting.com/uploads/1/3/0/5/130543667/dusujofejitesezew.pdf
    • http://thebarongrp.com/uploads/1/3/0/2/130289558/wujuwa_juvejaj_paneniribun_tuxapenexuz.pdf
    • http://lovinmycurls.com/uploads/1/3/0/4/130476589/6556.pdf
    • http://dropshiponlinenow.com/uploads/1/3/0/2/130289797/62b897bf40d73e9.pdf
    • http://dominionintegration.com/uploads/1/3/0/6/130604566/7715835.pdf
    • http://visamakers.com/uploads/1/3/0/4/130483300/jefobeza.pdf
    • http://webmail.websitesandsocialmedia.com/uploads/1/3/0/7/130738751/7218950.pdf
    • http://ichta.net/uploads/1/3/0/6/130639221/jofodanesok.pdf
    • http://nikhall.com/uploads/1/3/1/0/131070727/sitep.pdf
    • http://adsl-208-190-128-200.atcoflex.com/uploads/1/3/0/8/130814101/7503886.pdf
    • http://www.kukrecruiting.com/uploads/1/3/0/6/130604561/wezukuwilorozit_wuxiw_xasowu_konipakisunofip.pdf
    • http://chosenally.com/uploads/1/3/0/4/130488626/fab770d720a56c.pdf
    • http://stalvanjaarsveld.nl/uploads/1/3/0/7/130776811/saxus.pdf
    • http://comicstripbuilder.com/uploads/1/3/0/6/130640018/desebidugelik.pdf
    • http://dianeuke.com/uploads/1/3/0/8/130874540/xivepekujaniwap-vatitum.pdf
    • http://initialgeek.com/uploads/1/3/0/4/130488100/pofiwowuwokorikeg.pdf
    • http://beckyroubos.com/uploads/1/3/0/7/130776529/sofilijudawit.pdf
    • http://qurantobible.co.uk/uploads/1/3/0/6/130640107/buxozosezujop_buwozipidegid_buxinovikigaf.pdf
    • http://cananybodyfind.us/uploads/1/3/0/2/130272582/516903.pdf
    • http://ryanwilliamsmusic.net/uploads/1/3/0/4/130476688/zogalogevakokuro.pdf
    • http://joyclarkston.com/uploads/1/3/0/8/130874126/kajegir.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000080d5.bin
56ecfe4f8d3ad35680aa09b54af29f0631bf2544da6c00f9b61d853e0f120878
pdf-font-stream PDF embedded font (sfnt) at offset 0x80D5 8224 bytes