Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fc9b41da605a588…

MALICIOUS

PDF

41.8 KB Created: 2020-08-10 08:47:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8049f6e0b5e58aeb57767a8a049fb37f SHA-1: d69e8949a5b1315271cfb7d3b5e0f126b40aa5e3 SHA-256: 8fc9b41da605a58874fc7b7c83d675cc144df166b093c5bbe72530afca4052d3
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to shopify domains, but one critical link to 'ttraff.ru' is identified as a malicious redirector. The document body, though heavily corrupted, contains text related to downloading a PDF and the malicious redirector URL. This suggests the primary purpose is to redirect users to malicious sites, likely for SEO spam or phishing, rather than delivering a direct exploit.

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=telecharger+journal+el+watan+pdf+gratuit In PDF document text
    • http://files.robertwburroughs.com/uploads/1/3/0/9/130969562/xumiwelofuwadigege.pdfIn PDF document text
    • http://files.domesticatingthecigarette.com/uploads/1/3/1/6/131636654/guwasu_zelelep.pdfIn PDF document text
    • http://fuvos.yinq.net/uploads/1/3/2/7/132710797/kuxegaxunenoxedafa.pdfIn PDF document text
    • http://files.kimprintzcustoms.com/uploads/1/3/0/7/130740483/cef74.pdfIn PDF document text
    • http://files.boobybalm.com/uploads/1/3/0/7/130740530/vavavup_kelopoj_toxajonotane_relamuzoxagoxas.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/1/0433/9957/7756/files/download_novel_alma_aridatha.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2086/0067/files/sosagosekozavoxepefunusef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9603/8812/files/85193655903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/jabigasedewosinekoran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/duguru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7433/8472/files/41933458151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7270/7990/files/dinininivadajidaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/subaru_owner_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/the_walking_dead_s07e14_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1751/8751/files/mayor_que_yo_lyrics.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 3

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_off00006611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6611 5356 bytes
SHA-256: 94a1c208cbe59ff9734ed56f8d01a260775ab087dfece3474090dc4f0a425748
font_01_sfnt_off00007856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7856 9876 bytes
SHA-256: dccacf5f7841e5b2debe053174586cb5cf7efccf85877064dca17f026e19fe42

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