Malicious PDF — malware analysis report

Static analysis result for SHA-256 fff5246f8b486f35…

MALICIOUS

PDF

83.8 KB Created: 2021-02-15 04:40:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 57c5b78d919eab12b228e9baa1a7be6e SHA-1: 4554060f0bc88a9d0871ea471ed84c314d694634 SHA-256: fff5246f8b486f358472ac445f05c66939b3571f30ad66214e653c4b8a6c2f62
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://maypoin.ru/wix?keyword=mens+tunic+style+shirts PDF link annotation
    • https://cdn.sqhk.co/temisexezoda/m2jegho/monster_hunter_rise_release_date_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/vujagefamig/rYgjqJF/unknown_battleground_survival_3d_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/xupixawina/DjahidT/48653618374.pdfIn PDF document text
    • https://cdn.sqhk.co/takoxuwal/icrjjjb/tatetavug.pdfIn PDF document text
    • https://cdn.sqhk.co/xejudawadoni/9gcUgif/earthquake_today_california_near_me.pdfIn PDF document text
    • https://novigavaze.weebly.com/uploads/1/3/0/8/130874354/lubeviboper_mibilesi_wipikemufoki.pdfIn PDF document text
    • http://nakomajuvedina.iblogger.org/chris_shalom_song_my_beautifier_free.pdfIn PDF document text
    • https://cdn.sqhk.co/tikugosedik/Fiaw7d5/tank_strike_3d_war_machines_mod_apk.pdfIn PDF document text
    • http://zajowidased.iblogger.org/57062196262.pdfIn PDF document text
    • https://cdn.sqhk.co/jeporikate/f9INVtw/short_deep_life_quotes_tumblr.pdfIn PDF document text
    • https://cdn.sqhk.co/rikopekela/ieijigw/war_of_the_roses_movie_chandelier_scene.pdfIn PDF document text
    • https://fepafevadaxajaw.weebly.com/uploads/1/3/4/0/134095897/xamimav.pdfIn PDF document text
    • https://fajupumivut.weebly.com/uploads/1/3/4/1/134108914/1717b5a59d.pdfIn PDF document text
    • https://poxobavu.weebly.com/uploads/1/3/1/4/131453713/5840123.pdfIn PDF document text
    • https://cdn.sqhk.co/wogokodu/fhhicii/4264289876.pdfIn PDF document text
    • https://cdn.sqhk.co/tefulobesa/wveidhj/the_munsters_pinball.pdfIn PDF document text
    • https://cdn.sqhk.co/poxirowo/rjhThdQ/92738116556.pdfIn PDF document text
    • https://cdn.sqhk.co/fuzokikili/iehixMv/60604175258.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010cbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CBC 4784 bytes
SHA-256: 4b8e766f8f52ffa1bf9e2c7efcdda895a2dc17fbbb67be58e2345bf6f5101612
font_01_sfnt_off00011d0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D0D 10948 bytes
SHA-256: 58f87e789f89208b54d82d9f5b4bc510c0009000928a73f8a878df86e5960efc

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