Malicious PDF — malware analysis report

Static analysis result for SHA-256 65c76ed6022da86a…

MALICIOUS

PDF

90.3 KB Created: 2021-02-19 22:30:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0c8a82650cc5da5f688500a16ef3328c SHA-1: aab62a8797ba5442bfff790f12331bb7eedfc3dd SHA-256: 65c76ed6022da86a7893cfb5e556b2fa1c7c635759d85b1b040e231156650ae5
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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
  • 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://bologen.ru/123?utm_term=can+i+record+sling+tv+on+my+dvr PDF link annotation
    • https://cdn.sqhk.co/tezesafura/jZjgjPS/73175713804.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/7tdjchg/lanor.pdfIn PDF document text
    • https://cdn.sqhk.co/devuzemalut/ig6Jt06/snowden_movie_review_rotten_tomatoes.pdfIn PDF document text
    • https://cdn.sqhk.co/gixegusu/8gh4cgi/wojifulejevuwenorasa.pdfIn PDF document text
    • https://cdn.sqhk.co/padirazemi/ehiCh9x/zapegugemupa.pdfIn PDF document text
    • https://cdn.sqhk.co/xogudililavo/OUib7WN/cartoon_channels_dish_tv.pdfIn PDF document text
    • http://digitalmicroteter.xyz/556489158426d625.pdfIn PDF document text
    • http://qrastenmap.online/application_form_for_road_tax_refund4ej30.pdfIn PDF document text
    • http://iglivesupportteam.com/tractor_v_phoenix_livey5ici.pdfIn PDF document text
    • http://hurleyshamburgers.com/silajasitafiponutoj0uty.pdfIn PDF document text
    • https://cdn.sqhk.co/pavujakorige/WWgfUjf/biwujazifosajasezejiliv.pdfIn PDF document text
    • http://zalavsky.ru/gauravam_1973_songs_free_downloadkbe4t.pdfIn PDF document text
    • https://cdn.sqhk.co/nonuripot/Hmii9hb/fuluv.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/sigFkD6/shake_shack_promo_code_october_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/wogirujut/jThfNLE/5243456783.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off000123cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123CC 5324 bytes
SHA-256: 867f4511fcc3f15f060ee0b1beb42b2eda27195683c3f7aa3271b2957ece1cdc
font_01_sfnt_off000135d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135D9 11904 bytes
SHA-256: ffe9bd11ef731a53c9aa63e9a4be355dd717923d6822c5493d4b846a2d4df8a6