Malicious PDF — malware analysis report

Static analysis result for SHA-256 74d7789fbeaeb996…

MALICIOUS

PDF

42.9 KB Created: 2020-08-02 09:01:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f57551847498aad96fd8530ef8a3779d SHA-1: cd775ef955de8b2b3474288976dcc7c03e0f65d0 SHA-256: 74d7789fbeaeb99672c7812f644b622da49ef6437718f87986f7dd966dded274
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, including one to a known malicious redirector at `https://ttraff.com/pify?keyword=python+ldap+authentication`. The document body, though heavily obfuscated, also contains this URL and other links to PDF files hosted on Shopify, suggesting a link farm or phishing lure. The ML classifier strongly indicated maliciousness, and the presence of redirector links points to a likely phishing or malware distribution attempt.

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=python+ldap+authentication In PDF document text
    • http://files.sunriseandpinedesign.com/uploads/1/3/1/4/131438474/22719354c417d.pdfIn PDF document text
    • http://files.carindalewritersgroup.org/uploads/1/3/1/8/131856844/7743649.pdfIn PDF document text
    • http://files.readingdrive.org/uploads/1/3/0/7/130776485/2830653.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/1/0434/3398/4161/files/39643751585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0071/7727/files/zafawozumigogogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6696/4630/files/68372283108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/sumug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4669/0203/files/action_speak_louder_than_words_essay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9359/9132/files/31750725286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5959/files/suxajimojepibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/xawadune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/muzoguganava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1332/2398/files/15637317515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7469/6856/files/bomuxogomobutemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/70584260360.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_off00005ce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE4 4988 bytes
SHA-256: 98dd4ee1313c6d8a333fa77e1d21754ae857adf0e3ed616fe10d16286eae24e6
font_01_sfnt_off00006de6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE6 15744 bytes
SHA-256: 9f2e5de66d0b71e2a628f4f74031492ecd20cafad30536365196c7f5901b7855

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