Malicious PDF — malware analysis report

Static analysis result for SHA-256 0743c7aa4c590157…

MALICIOUS

PDF

49.3 KB Created: 2020-08-01 13:12:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f070cf0bd04a7bcdb74103fa03cb67cb SHA-1: 8eb2fefcd9519e434992fec9c8037adfa4d48282 SHA-256: 0743c7aa4c59015797438a61d57845c3cdabc68d47b9a6d0792490d54fc7e1b8
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The primary redirector URL is associated with malicious activity. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the malicious intent. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or scam 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.ru/pify?keyword=hp+25es+manual In PDF document text
    • http://files.poliscape.org/uploads/1/3/1/3/131379732/xonuwoxeratujuf.pdfIn PDF document text
    • http://files.redhotyogastudios.com/uploads/1/3/2/7/132712129/bimarano.pdfIn PDF document text
    • http://files.onpapasfarm.com/uploads/1/3/0/7/130776481/27290.pdfIn PDF document text
    • http://files.medeye.net/uploads/1/3/0/8/130813428/vomimawovu-kubizaleb-medamovamuxilag-nabolejetizi.pdfIn PDF document text
    • http://files.hansogrenphotography.com/uploads/1/3/1/4/131409677/xomugexu.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/1/0433/8126/0440/files/bapipepabasoxogiludud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6857/files/30568249106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3141/3404/files/gipaneketuzirizere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9918/5561/files/48307233597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7854/9665/files/dufiganinog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/tunanezuritukevinazar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7526/2869/files/41613641743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5471/0427/files/jalotadopejolitaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4285/6345/files/pokemon_heart_gold_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57515970725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4154/4600/files/vawigulatoziwebed.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C6 5084 bytes
SHA-256: be22f8b21051513b780fb061c50b0f8665ac53a098787a1684570afba3a365f5
font_01_sfnt_off00008903.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8903 14476 bytes
SHA-256: 4f5dcd2baeb2b87e90c545078d775e513e9811f04b37ffd38943319498327aef