Malicious PDF — malware analysis report

Static analysis result for SHA-256 55078a66751beba9…

MALICIOUS

PDF

67.6 KB Created: 2021-04-04 17:07:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: c31f44390e3cd63f13bb1abe11211c44 SHA-1: 808f41621f7b802977cbc4af941f215e982f2ebf SHA-256: 55078a66751beba9005c36729a08e036d6f73590c2303bdabef0147c28125954
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a heuristic indicating it is a phishing lure, specifically designed to trick users into clicking a link for a 'free download'. The embedded URL, https://ponafet.ru/aws?utm_term=what+is+the+message+in+there+will+come+soft+rains, is identified as a redirector to a phishing site. While no scripts were explicitly extracted, the PDF structure and the nature of the URL suggest an attempt to deliver a malicious payload or redirect to a credential harvesting page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9227

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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
  • 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://ponafet.ru/aws?utm_term=what+is+the+message+in+there+will+come+soft+rains PDF link annotation
    • http://zufutefej.22web.org/18977695144.pdfIn PDF document text
    • http://pirawamajakemiv.22web.org/timesheet_calculator_with_lunch.pdfIn PDF document text
    • https://fisupipegapug.weebly.com/uploads/1/3/4/5/134515512/8635262.pdfIn PDF document text
    • http://nijepatexosanus.medianewsonline.com/43630019554.pdfIn PDF document text
    • http://wgathering.org/how_do_you_charge_a_nimh_rc_batteryvcvd9.pdfIn PDF document text
    • http://beliyden.xyz/25621955992v872f.pdfIn PDF document text
    • https://gaparomid.weebly.com/uploads/1/3/4/6/134632142/1001887.pdfIn PDF document text
    • http://gejulavofanutar.mygamesonline.org/27805891580.pdfIn PDF document text
    • http://wivupivipewezap.mygamesonline.org/3170502438.pdfIn PDF document text
    • http://bewujasixi.mywebcommunity.org/tunexuruzesapoxeroj.pdfIn PDF document text
    • https://pafovawulawagi.weebly.com/uploads/1/3/4/5/134581771/473153.pdfIn PDF document text
    • https://vonulimuwudepaf.weebly.com/uploads/1/3/4/1/134131723/b9e53ce2c14b83f.pdfIn PDF document text
    • https://tufakuxumiwe.weebly.com/uploads/1/3/1/4/131454237/fc1d6d2bd41.pdfIn PDF document text
    • http://mantenancie.com/pevoxamovotemajrijj8.pdfIn PDF document text
    • http://pejofewetoz.22web.org/koganokoxoropagug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pugetuwozijeso.rf.gd/81145173585.pdfIn PDF document text
    • http://rukojipunuwupur.epizy.com/vobogugoz.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/aladdin_cartoon_movie_filmywap.pdfIn PDF document text
    • http://gajutovowitexij.rf.gd/78844962975.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/el_mundo_de_sofia_jostein_gaarder.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/12420018473.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/gps_navigation_app_for_mobile.pdfIn PDF document text
    • http://zakefuki.myartsonline.com/31285986260.pdfIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/swift_dictionary_map_transform.pdfIn PDF document text
    • http://sudurima.rf.gd/la_mulana_2_hint_based_guide.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1ED 5400 bytes
SHA-256: e7e4592af4c9d15e40288c27eac1e21ba5181f68e080370d8a71af95a7e56f6c

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