Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe8bec12bfbd2cbd…

MALICIOUS

PDF

41.2 KB Created: 2020-08-04 15:04:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49868a30265f3fb8925af81a10865d87 SHA-1: b405d7036057ec4af88da04f51de57a5365319df SHA-256: fe8bec12bfbd2cbd473e3c1fe25160753804a7f9ff5db07a537005cebac7db4a
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download button, intended to lure the user to a malicious site. The document also functions as a link farm, embedding numerous external PDF links, many of which point to Shopify domains. The primary malicious URL identified is ttraff.ru, which is known for redirecting to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=regression+analysis+articles+pdf In PDF document text
    • http://files.campconcordia.net/uploads/1/3/0/7/130738628/putikura-jifeb.pdfIn PDF document text
    • http://files.lbkkennel.com/uploads/1/3/1/6/131637953/92430c3748278d.pdfIn PDF document text
    • http://files.marissagagliano.com/uploads/1/3/1/6/131606373/rorafetebipuwovo.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/1/0434/0583/6438/files/26677600581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/22546822140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3074/8072/files/10406465026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5638/9528/files/achilles_building_confidence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2554/5890/files/starbucks_card_balance_check.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9930/7673/files/57847016008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9855/5043/files/majanipomivivijimakowuxet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7598/3778/files/56060124343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4633/7693/files/update_alternatives_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6200/1821/files/15414759979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/77535441730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7351/2359/files/71959100723.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_off0000622e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622E 5432 bytes
SHA-256: 23a11595b4a35c1f78cb2efb8acada5b29ea756c54bca40587eb7958f6acb5e3
font_01_sfnt_off000074cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74CC 10428 bytes
SHA-256: ac16dc59c58c78cd995f2fb0d898d83652b8ec7768fc2430254a0378d592deef

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