Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f488ef0f4ed2044…

MALICIOUS

PDF

103.8 KB Created: 2020-08-05 03:52:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1bd4e9028fe1e3a27fac58712373441d SHA-1: 0b6f0f4663a8e3f852f2581d40b56f83ac89783a SHA-256: 0f488ef0f4ed20441a538c009d29fa80fcb7d992ce2539f6c49f29923f636b7e
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to create a link farm, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary goal is to redirect users to a malicious site, likely for phishing or malware distribution.

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=ais+expenditure+cycle+pdf In PDF document text
    • http://files.authormariebenedict.com/uploads/1/3/2/6/132696483/pafoz.pdfIn PDF document text
    • http://files.getelevatedny.com/uploads/1/3/2/3/132303359/d7d3d3.pdfIn PDF document text
    • http://files.washngoalabama.com/uploads/1/3/0/8/130873872/mupajemobaneli.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/1/0432/0896/6301/files/fanaredo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/dabamurafume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4389/5966/files/woduno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9381/9541/files/totato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6200/0806/files/22361495390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/porovurujapiganipuzul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9131/2288/files/lukozitedadoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4101/4438/files/zirekek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0656/6306/files/70718731194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1806/7876/files/rikasemuvekitizevovawug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11067845032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7768/7701/files/26256347710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8583/2096/files/fiche_revision_brevet_2020_francais.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_off00014caa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14CAA 5096 bytes
SHA-256: 1a78c700ac3dd66a7d8ecf4fb77c49dca1064997f9ebe322092b57c6b80360c4
font_01_sfnt_off00015e21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E21 17168 bytes
SHA-256: 95692175e4ae4710ae89b6ef824f105d62f92e4406e96a7b9540452c98d134f6

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