Malicious PDF — malware analysis report

Static analysis result for SHA-256 1411fcc1084da7c7…

MALICIOUS

PDF

56.5 KB Created: 2020-08-03 12:14:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74f28752a3da1f909ca2488e5b3947a6 SHA-1: cfbb467d2a0125bec76f83bf566669e6766012fe SHA-256: 1411fcc1084da7c78d4a4cbcfbbdad3c7ad46d5c8c4fa1059eab6b4cc8cc9eb0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The links appear to be part of an SEO link farm designed to lure users into downloading other PDF files, potentially containing malicious content or leading to phishing sites. The ML classifier strongly indicates maliciousness, supporting the conclusion that this document is part of a malicious distribution campaign.

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=timelessness+and+the+reality+of+fate+by+harun+yahya+pdf In PDF document text
    • http://files.totallyrendang.com/uploads/1/3/1/3/131383743/a45309e1.pdfIn PDF document text
    • http://files.jimenavalenzuela.com/uploads/1/3/1/4/131453735/077a81fcc.pdfIn PDF document text
    • http://pupibafu.jastravs.com/uploads/1/3/1/4/131437601/kovaxexuko.pdfIn PDF document text
    • http://kesotavix.siglapircc.com/uploads/1/3/1/4/131437736/fesareriniketu-dumoludobegez-zaxetamawedim-wewuti.pdfIn PDF document text
    • http://files.angeliquemichaudphotographie.com/uploads/1/3/2/7/132740186/0996dbced.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/1/0435/2750/4024/files/tavebazegabejofufulede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2929/1427/files/68557070634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/97355606509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6228/8793/files/pagunimoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89647405972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7448/6421/files/gebinolipatubufobev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6120/5399/files/d_e1_bb_8ach.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7841/8583/files/wapujezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1801/0274/files/50093389075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6113/2968/files/750439194.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000b228.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB228 20404 bytes
SHA-256: d5b88f1d0c0d330630dae83f7770e528d758a1f6a959d3d1f87adb2c5f229051
font_00_sfnt_off00007ae8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE8 5472 bytes
SHA-256: 7c4227a03d0ba7f22bfb5297729d41c755cde1c8e466a1bf7caa6327b9629a52
font_01_sfnt_off00008d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D57 10732 bytes
SHA-256: 3632f5c495cdb1e78bf60fc94b9eea3fc0190a7d5ac892db47b4d65d6d2a1ebf

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