Malicious PDF — malware analysis report

Static analysis result for SHA-256 56495d7cfae934b8…

MALICIOUS

PDF

48.0 KB Created: 2020-08-06 08:39:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92ba313e5b28b68729b1196b9026b17f SHA-1: f7ad3571840dbd677cf579b5369b7fc2c8ffce77 SHA-256: 56495d7cfae934b81ac19e2d8ab489c6d8c9ba96f44b756c20df89b3cd803f44
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a worksheet and the malicious URL. The primary attack pattern involves luring the user to a malicious site via a deceptive link.

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=surface+area+of+rectangular+prism+word+problems+worksheet+pdf In PDF document text
    • http://files.compassionvet.com/uploads/1/3/0/9/130969061/701780b.pdfIn PDF document text
    • http://files.artculturetourism.co.uk/uploads/1/3/1/3/131383583/motubasugot.pdfIn PDF document text
    • http://files.mujand.com/uploads/1/3/1/0/131070895/wegivemuxasogo-lirojulozi.pdfIn PDF document text
    • http://files.funonwater.net/uploads/1/3/1/4/131437779/921728.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/1/0431/3510/7233/files/rovafuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7231/4778/files/griffonrook_run_entrance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34707652888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/92797483215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6067/4198/files/badugijagise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3711/1973/files/4377162268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/college_botany_practical_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2862/7107/files/89868745731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7837/5831/files/34467432864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3745/7575/files/55559121199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0419/8038/files/97754890832.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6647 5968 bytes
SHA-256: 22c689314b9676ad1468b85b47e35c8a8c06bc5ced6ed11e00a97bdef7f0954a
font_01_sfnt_off00007a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A77 10216 bytes
SHA-256: f3d7314cc317d7366391321980d7a50469160c446fc67b3ed76d54ac6aed4a13
font_02_sfnt_off00009da8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DA8 16076 bytes
SHA-256: 600aa39070f77b1bff24cc1c88b70bc53fbdf25fef7c0b0d1ba801174e977c5e

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