Malicious PDF — malware analysis report

Static analysis result for SHA-256 4841ff190e2eacbe…

MALICIOUS

PDF

71.3 KB Created: 2020-08-14 12:02:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 818bf20901af46d49905a6ff7ee7e64d SHA-1: 45cbb64e70dad1859ad28a53b15a3a614c6effd5 SHA-256: 4841ff190e2eacbee33973a225effa38379a1471dca4ad54d714f4f9e2fb1490
194 Risk Score

Malware Insights

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

The PDF file contains a link farm with 30 external PDF links, many hosted on Shopify. The primary malicious link, 'https://ttraff.com/pify?keyword=wow+classic+sungrass+farming+guide', is identified as a malicious redirector. The document body, though heavily obfuscated, contains the same lure text as the malicious URL, suggesting a social engineering attempt to trick users into clicking the link for a fake guide.

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=wow+classic+sungrass+farming+guide In PDF document text
    • http://files.alnwickroundtable.co.uk/uploads/1/3/1/4/131406800/6649ef.pdfIn PDF document text
    • http://files.robertuspudyanto.com/uploads/1/3/1/6/131607093/budatofanuno.pdfIn PDF document text
    • http://files.lizboultonart.com/uploads/1/3/1/4/131483147/c62825af.pdfIn PDF document text
    • http://nomuxu.guitarhympia.com/uploads/1/3/2/6/132682646/lefijitejegidan.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/1/0431/7993/3862/files/veburuboxakuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3006/8898/files/lodigolowetimewokodefup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1878/6728/files/badminton_rules_in_marathi_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/47988406554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2883/0632/files/kisowokexokulunewuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6551/5933/files/vakapaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/dupila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8815/0690/files/biochemistry_jm_berg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7623/1072/files/dusela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fakuwonilojovaxibudebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1152/1181/files/12500326117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6345/9486/files/18223915213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/charlotte_bronte_villette_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6775/2099/files/bugsy_malone_music.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 4

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_off0000d9e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E1 5448 bytes
SHA-256: 0b0fdda0971d530a4648ac797071931567e149de5f098cd39fd2e92f85f3aeea
font_01_sfnt_off0000ec60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC60 10420 bytes
SHA-256: 63ef1407577b8d461d915dd2eb9fc5fabbe6bf3a07294e72a08e24d0cfbc816c

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