Malicious PDF — malware analysis report

Static analysis result for SHA-256 834a7eae876b07e8…

MALICIOUS

PDF

34.5 KB Created: 2020-08-02 17:01:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fa4081938c8070b0a1b522f333afa5fc SHA-1: 864a2a8af72a8597752a1a9af157a2965dc926ea SHA-256: 834a7eae876b07e8c82600c1dd57b7251312fcddbf31471d57d0d3c7c660b313
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, `https://ttraff.ru/pify?keyword=d%2526+d+town+map+generator`, which is flagged as malicious. The document also hosts a large number of external PDF links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute malicious content. The ML classifier 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.ru/pify?keyword=d%2526+d+town+map+generator In PDF document text
    • http://files.rootsthatrundeep.net/uploads/1/3/1/4/131437532/a7cac8e45.pdfIn PDF document text
    • http://files.exposingtheblackeconomyreport.com/uploads/1/3/0/7/130738614/1637513.pdfIn PDF document text
    • http://files.ypoceanside.com/uploads/1/3/0/8/130814216/1100977.pdfIn PDF document text
    • http://siroz.faith-without-walls.com/uploads/1/3/1/8/131872269/fimuvuwerokune_wuvigagim_dukaze.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/1/0430/0010/3073/files/11504174686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3176/3864/files/jetewevagusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4343/8242/files/40108726985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0199/3622/files/nowabifegepev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/21977778440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3989/0327/files/tapiseposezoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3108/4708/files/menagofugemoratipupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6329/5654/files/28458733681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8499/7025/files/90626432231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/nugamejofenukexufozajeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1568/2717/files/bloodborne_executioner_gloves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0831/7850/files/pevapoxeveteropowiwigi.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_off00004af5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AF5 4156 bytes
SHA-256: 58eabb24298f18ab3cb5c3f3a5652a185830994b36fd37cd9ad46fcf77495092
font_01_sfnt_off00005924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5924 11076 bytes
SHA-256: 77cb4bce889afc5504295033602b57251e70884e3f2323a6082838a0a664f212

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