Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ddba139675e27a9…

MALICIOUS

PDF

69.8 KB Created: 2021-02-22 04:17:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 69365a45528c23b079f7b85542a43fe9 SHA-1: 5291ba8c738a5103b2791dcf604e83ffedd8b77f SHA-256: 2ddba139675e27a923ccd31d7695d4bd0f65e6656dd3ed2121d8f81a4fad9f88
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://druttle.ru/wix?keyword=sims+freeplay+hack+generator+no+human+verification PDF link annotation
    • https://nokesopupikes.weebly.com/uploads/1/3/4/7/134767934/nimok.pdfIn PDF document text
    • http://vuzuvolumupapiz.22web.org/household_maintenance_list.pdfIn PDF document text
    • https://wusuritod.weebly.com/uploads/1/3/0/7/130739885/wozelalejiri.pdfIn PDF document text
    • http://tepafuvofes.iblogger.org/44111819861.pdfIn PDF document text
    • https://sowovejapa.weebly.com/uploads/1/3/4/7/134709895/kojimutaziz.pdfIn PDF document text
    • https://selemuja.weebly.com/uploads/1/3/4/8/134893326/tasitarevijis.pdfIn PDF document text
    • https://cdn.sqhk.co/momebuman/jbghjeY/thoroughly_meaning_in_english.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/navoburarovada/gategalasexaxenamexomuza.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/41584446136.pdfIn PDF document text
    • https://s3.amazonaws.com/padosumifubobo/filezuledinogejebeseto.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/bilakuxopilirofegevex.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/huawei_mate_20_lite_aggiornamento_android_10.pdfIn PDF document text
    • http://satuzolo.epizy.com/39332773142.pdfIn PDF document text
    • http://relaweki.rf.gd/108_amman_video_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gekojulog/wajewowafawip.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d46a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD46A 5756 bytes
SHA-256: 0cd8b65b85ddd4cf543671ad9a9ccf2c1690d232ec7ee26c1afc5f64a0f82f21
font_01_sfnt_off0000e7e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E6 9852 bytes
SHA-256: 91b4f48ac966e461ce527afa46d46e7f699f47a3a4522ae5535eb4366a95d046