Malicious PDF — malware analysis report

Static analysis result for SHA-256 14238018c8dbc240…

MALICIOUS

PDF

43.3 KB Created: 2020-08-23 01:15:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a5de3599e0ae740971a94c34e38c4c9 SHA-1: 50bc2815cb86e930a8e11156b1dfe36a10c80b91 SHA-256: 14238018c8dbc240195e26efe98c6ffeb4900266c5fd362661a9de622290ff08
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links to external resources, many of which point to a redirector service. The primary redirector URL, 'https://ttraff.com/pify?keyword=chown+linux+manual', is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious infrastructure under the guise of providing a 'chown linux manual'. The presence of a large number of PDF links, many hosted on Shopify, indicates a potential link farm or SEO manipulation tactic to distribute the malicious content.

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=chown+linux+manual In PDF document text
    • http://files.oldmapsofthe1800s.com/uploads/1/3/1/3/131379213/3999155.pdfIn PDF document text
    • http://files.sastinson.com/uploads/1/3/2/6/132682892/ef9ff4f42977c1.pdfIn PDF document text
    • http://files.eastafricanscholarsfund.org/uploads/1/3/1/6/131606968/dafixuxozonono-foxidi-xinatajejed-poloxokawuw.pdfIn PDF document text
    • http://ramot.janetahrens.org/uploads/1/3/2/6/132682790/penozezawexilafe.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/1/0429/8119/5927/files/56927695307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0318/2243/files/soxofofogikipaxuzidini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9443/4207/files/technological_innovation_as_an_evolutionary_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5397/9550/files/software_espiao_android_gratis_por_3_dias.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7848/3096/files/95440086759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0644/3163/files/32243429912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9764/4449/files/94826402579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5419/3047/files/battlefield_bad_company_2_mod_apk_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0048/7332/files/pivus.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_off0000691c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x691C 4716 bytes
SHA-256: 4a1d3980ca929fcfea5732a58872ea83c299c8d3693e859c2f6ae92840e8ebb5
font_01_sfnt_off0000790a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x790A 11828 bytes
SHA-256: 0a396a9af772cd2efb6462950049ca2e1e57300c5a792679d480369d24a411bb

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