Malicious PDF — malware analysis report

Static analysis result for SHA-256 0143fc870b40d6e4…

MALICIOUS

PDF

40.7 KB Created: 2020-08-21 02:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bcc2a5f8411663a1e3d643550120892 SHA-1: c60989ef31000a3a50d0cfbc51eb4ebc4aaa92a1 SHA-256: 0143fc870b40d6e4aa0a41502f4313af4d0e0fb76026c9b15f8405bc9b1f5356
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) designed to obscure the final malicious destination. The document body, though obfuscated, contains the lure text "Goldfish buying guide" and the redirector URL, indicating a phishing attempt. The presence of a link farm suggests an attempt to generate traffic or SEO manipulation for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.com/pify?keyword=goldfish+buying+guide In PDF document text
    • http://napekuxit.thepaisleypoppystore.com/uploads/1/3/0/8/130874493/nosoxafomeb_lakabufuwesuva_denumatupidozeb_zubazok.pdfIn PDF document text
    • http://sabijafi.alittlepeaceayurveda.com/uploads/1/3/0/7/130775388/4741573.pdfIn PDF document text
    • http://meluv.humphreyadventures.com/uploads/1/3/0/7/130776330/6021499.pdfIn PDF document text
    • http://diguj.cactusmoonshine.com/uploads/1/3/0/7/130738837/selesivajupirujeg.pdfIn PDF document text
    • http://bafamadi.stmarkski.com/uploads/1/3/1/8/131857419/fudibaduve.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8620/8406/files/before_he_cheats_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/megavun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/52843534044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/setting_up_a_discord_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1991/7720/files/pubadezuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6795/5605/files/46011920337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5670/8254/files/xubukoxuvotizewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1396/3939/files/adding_fractions_and_mixed_numbers.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

Related samples 7

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_off0000614c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614C 5136 bytes
SHA-256: 1959d59e7dafef0d5c85e1c62f0fea26c2d5ec7c1a10bc434f0af10e692347d2
font_01_sfnt_off000072cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72CF 10392 bytes
SHA-256: 77f0c27df419606e554c364de346debd835ea3107aab9521cf73ebfc07434f21

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