Malicious PDF — malware analysis report

Static analysis result for SHA-256 45712b3fc5404854…

MALICIOUS

PDF

40.2 KB Created: 2020-08-05 03:08:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06c27170bc2e4d78f02ef5461b730d0c SHA-1: a17c809bf7bda634bea706ebcc7dbd46960bf61c SHA-256: 45712b3fc54048544310452bbd3393f55d479ba5a5df5347f917d734b7b89086
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, with the primary link directing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'technical drawing' and a URL that appears to be a lure. The heuristic firings strongly indicate malicious redirection and link farming, suggesting the document's purpose is to drive users to malicious infrastructure.

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=technical+drawing+12th+edition+giesecke+pdf In PDF document text
    • http://files.melodiestheatreacademy.com/uploads/1/3/1/4/131437158/5581040.pdfIn PDF document text
    • http://files.skagitcohousing.org/uploads/1/3/1/4/131453350/pakosekisogem.pdfIn PDF document text
    • http://files.ricksmobilerv.com/uploads/1/3/2/3/132303238/02fd0933.pdfIn PDF document text
    • http://files.pinehavencamp.org/uploads/1/3/0/7/130776406/lopavopijimeb.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/1/0427/7148/0742/files/95138780311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4920/6439/files/77545830144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2590/8383/files/kikonep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4293/8784/files/82982842080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/firozovavalalagilobefera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5340/files/sesobamoret.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4826/4089/files/keguvugofumenefufirula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7260/0726/files/mojuxepodonob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/60770038855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/53493330654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5759/4016/files/pitozenegizut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lasuzopaxikabade.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 6

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_off00005d2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2D 5708 bytes
SHA-256: 3c582a1b2438ed3312ee22ca326a1ad4b1c1372d5de10226aaa58bacd49f52f8
font_01_sfnt_off000070b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B3 10336 bytes
SHA-256: 33cf3103223336aabd1a174fc622d2a7ae976e0286fcd820f643be348740f8d3

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