Malicious PDF — malware analysis report

Static analysis result for SHA-256 411c1fa7a62a59c1…

MALICIOUS

PDF

65.0 KB Created: 2020-08-04 10:27:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cbd3a7e2237cf327ed2dc4bb158c8c25 SHA-1: e205e60ef181fa83879774ace350deb2a2f6d8ce SHA-256: 411c1fa7a62a59c103ca03072e36ac396fcc574d46af0b2e9be78256f87b9143
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure to download a PDF which redirects to a malicious site.

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.ru/pify?keyword=el+extranjero+albert+camus+pdf+download In PDF document text
    • http://files.thefireflymystic.com/uploads/1/3/2/6/132696483/8653729.pdfIn PDF document text
    • http://files.trekbikesblog.com/uploads/1/3/1/3/131381288/mebozedegodisu.pdfIn PDF document text
    • http://files.utahsreptilerescueservice.org/uploads/1/3/0/7/130776230/7bae21.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/1/0428/9835/8432/files/rixaraxamixenapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4580/6503/files/barca_kits_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9339/3557/files/jedabiremojukis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/rurukomedivezituku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowelikuzamutaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/kazolubiwesabirewevukilud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2913/5514/files/zunozagofuxireluru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gadawatozuwagujezudoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8868/2916/files/munisasoboxasibalopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4135/6950/files/zawawodedagafusezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6707/1894/files/nowugilemuziragoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sezam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3859/2424/files/thyristor_definition.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 4

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_off0000b497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB497 5632 bytes
SHA-256: 10df34bc2d834180a679d359df2253c72690fa5c1f467223e8c9add437ae7339
font_01_sfnt_off0000c7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7BE 14840 bytes
SHA-256: 34694a26be1a4522dbe63ded065c2a19773673227ae02b1ed759b2aab0bb2712

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