Malicious PDF — malware analysis report

Static analysis result for SHA-256 c32326429ccdd5ef…

MALICIOUS

PDF

72.2 KB Created: 2021-02-14 22:06:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4d96c345a06273c9b53e51a6043f0b6a SHA-1: c23f05931135185608c6c9d5638ba44be3f2e8c2 SHA-256: c32326429ccdd5ef7f3e7f9fa967644ad12a556db793645df24df649f9593748
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wix?keyword=fine+art+certificate+of+authenticity+template+free PDF link annotation
    • https://cdn.sqhk.co/widafopaj/iiieK7C/swing_chair_lounger.pdfIn PDF document text
    • https://gitizurozid.weebly.com/uploads/1/3/0/7/130775734/2961307.pdfIn PDF document text
    • https://cdn.sqhk.co/dusaradezat/jGV56gg/foguv.pdfIn PDF document text
    • https://cdn.sqhk.co/jadepibake/jf9jic2/best_tv_deals_right_now_65_inch.pdfIn PDF document text
    • http://sazavenegot.22web.org/13788973737.pdfIn PDF document text
    • https://vabeliguteziji.weebly.com/uploads/1/3/1/3/131379360/tebujigimeja.pdfIn PDF document text
    • https://cdn.sqhk.co/dijadive/gjicjjf/77549016387.pdfIn PDF document text
    • https://cdn.sqhk.co/zolewiko/bgiV7gi/82496287111.pdfIn PDF document text
    • https://cdn.sqhk.co/rufebumu/Xhflcjb/47364473623.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/icnz5qR/learn_to_play_piano_free_sheet_music.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvupalib/4ifCRhf/v_model_in_software_engineering_tutorial_point.pdfIn PDF document text
    • https://cdn.sqhk.co/molewekane/hcSiejh/radio_italy_live_new_york_app.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490256/normal_5ff3937218ab4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fapujeg.epizy.com/new_fintrac_guidelines_2019.pdfIn PDF document text
    • http://tojegazanet.rf.gd/balance_sheet_example_australia.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_off0000dff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF8 5132 bytes
SHA-256: 93b8deb272508a28ec09f0e738594d0324e23b0f8a8ffa73395a48c6ac1522e9
font_01_sfnt_off0000f154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF154 10044 bytes
SHA-256: 4a63ceace6d050e4af1bfacb11067d4722c578a47de2cead976596beef4baf0c