Malicious PDF — malware analysis report

Static analysis result for SHA-256 1951a2dfa2ef7810…

MALICIOUS

PDF

47.4 KB Created: 2020-08-12 06:58:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3f42e68e64fcaa40731c9f2faa7b8901 SHA-1: f0ae43369b8ccfd16208b0eff65cc54e38aee5fc SHA-256: 1951a2dfa2ef78103895c35595039e065260491083de38dbcaf7d7909ae670d9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external resources, masquerading as a free download of a religious text. The primary link directs to a redirector infrastructure, indicating a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

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.cc/pify?keyword=surah+yaseen+with+urdu+and+english+translation+pdf In PDF document text
    • http://files.tammylynnhenderson.com/uploads/1/3/0/7/130739826/1369365.pdfIn PDF document text
    • http://files.illustrioustees.com/uploads/1/3/1/3/131398406/812050f7718.pdfIn PDF document text
    • http://majumeme.savajrsvolleyball.com/uploads/1/3/0/9/130969060/1715516.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/1/0435/0646/6976/files/zaronikomeduxoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8202/8958/files/38719635333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7952/2722/files/62909744402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5572/7260/files/79897383545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3190/3902/files/6664089205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7620/6235/files/kofowolexod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/arabic_ocr_to_word_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2769/2695/files/33613263607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7750/0056/files/pufizavemokow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/takuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7935/9900/files/mathrubhumi_calendar_april_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7826/3718/files/labururujezadegef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8765/1235/files/mavunireju.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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
font_00_sfnt_off00006280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6280 5600 bytes
SHA-256: da2a09936592a4bf8472ce9b75fa93d85db1673cf82a63272a18d2ba44a93b27
font_01_sfnt_off000075a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A3 10036 bytes
SHA-256: f2897131a3f358e6a53a5babd1f84c28ff45e233ae8e6acf91b169648d48ea4a
font_02_sfnt_off0000981a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x981A 16852 bytes
SHA-256: 29a3787f47b05283ae8c29c40afbb15b1f9530e2c2d66964e8d1b990b71cd5b1

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