Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8f33adf8d8241a7…

MALICIOUS

PDF

39.5 KB Created: 2020-07-17 14:24:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf1a0bbc327e6b3441dacfd0de1461d4 SHA-1: dd4f92c14341bb58e7da37f0c83180d1cc665946 SHA-256: a8f33adf8d8241a7fa70dac51e96b4054bfe630901c37e9ea2319e8f87d52f4a
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is further associated with a link farm designed for SEO poisoning. The document body, though heavily obfuscated, contains keywords related to a game ('Slenderman must die chapter 6 apk') which likely serves as a lure. The ML classifier also strongly indicated maliciousness.

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=slenderman+must+die+chapter+6+apk In PDF document text
    • http://files.samanthawyattphotography.com/uploads/1/3/0/7/130775918/nomuj.pdfIn PDF document text
    • http://files.rasaddleclublarkhill.com/uploads/1/3/0/9/130969761/9522621.pdfIn PDF document text
    • http://files.protectplayanow.org/uploads/1/3/2/6/132680870/3730721.pdfIn PDF document text
    • http://files.thehawksquill.com/uploads/1/3/1/3/131379118/3485395.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/40169505762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/97611622705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1369814796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/bobowuz.pdfIn PDF document text
    • https://turimofusi.files.wordpress.com/2020/06/nuvedefemelizemaw.pdfIn PDF document text
    • https://pabozig.files.wordpress.com/2020/06/nuzedotem.pdfIn PDF document text
    • https://mumizebovoxi.files.wordpress.com/2020/07/45303839404.pdfIn PDF document text
    • https://bujeralox206344462.files.wordpress.com/2020/07/juvefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9476/8802/files/zilajukuwumitadomuwune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/3429907213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9477/files/vuxowolasivezupimidepapis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/zakipeginanonuwirosut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89186344985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4527/3251/files/89511596137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0123/4076/files/juzedowiwadef.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 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_off00005b58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B58 5404 bytes
SHA-256: 86468cd019090fece7bc334ba1f264ff7f808b4130bb16e9d5c077b805237707
font_01_sfnt_off00006d79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D79 10216 bytes
SHA-256: 514623215c8b577197ee64338ce792f84076a07fdc9761c953359f138640bf69

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