Malicious PDF — malware analysis report

Static analysis result for SHA-256 290135deab2e0be7…

MALICIOUS

PDF

71.4 KB Created: 2021-02-14 14:49:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b6564377c3076fbe1737528805215051 SHA-1: fa81d103432275019bf74a23a1f6c29b6d9390b0 SHA-256: 290135deab2e0be787ea7ed649a8f20894330ee75a70f5514396ab8082140937
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://jacksth.ru/wix?keyword=tony+bellamy+dancing PDF link annotation
    • https://tukobigerokigab.weebly.com/uploads/1/3/4/6/134653943/9299106.pdfIn PDF document text
    • https://boxorefo.weebly.com/uploads/1/3/0/9/130969922/7652008.pdfIn PDF document text
    • http://triple-doska5.club/magic_bubble_oz_popsicleof7pn.pdfIn PDF document text
    • https://kujafuzepod.weebly.com/uploads/1/3/1/6/131637430/bofoxadimorofam_dutikanekot_galagutaxik_xebala.pdfIn PDF document text
    • https://litudawugo.weebly.com/uploads/1/3/3/9/133997631/mosen.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391317/normal_5ffa9c39bd25b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421341/normal_60016be4665ff.pdfIn PDF document text
    • https://jiduwaramusova.weebly.com/uploads/1/3/4/8/134854614/javoborelavinim.pdfIn PDF document text
    • https://gosabotef.weebly.com/uploads/1/3/4/3/134332229/4785749.pdfIn PDF document text
    • http://makamar.xyz/transformers_g1_autobot_cityg9ze9.pdfIn PDF document text
    • https://mijujatojiso.weebly.com/uploads/1/3/4/7/134701577/c096810f191d.pdfIn PDF document text
    • http://stavki-na-sport.site/gay_chubby_bear_porn5kg69.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/gogoxowiniza/nusuzekemagokajobuke.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/81424841897.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/college_mate_song_punjabi.pdfIn PDF document text
    • https://s3.amazonaws.com/zifilobesumafi/dilbar_janiya_song_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/holding_the_man_full_movie_480p.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_off0000dc54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC54 5176 bytes
SHA-256: b0146c5e292908822a26c8f33e26a61c994a454332db6ba34ff9c8dd72694a3b
font_01_sfnt_off0000ede7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDE7 10248 bytes
SHA-256: 145b4d66c12ed4d16d700a728088b1d0a15aee073733e0e9b77f101477cb10e1