Malicious PDF — malware analysis report

Static analysis result for SHA-256 02833a2725bcf9bc…

MALICIOUS

PDF

42.9 KB Created: 2020-08-06 10:13:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e2455d46c8e0bd085ba2c1c6775166a SHA-1: 151d92550f86da737e34a5c67f47717e1e1440c9 SHA-256: 02833a2725bcf9bcefaf7a70d3a04451b63afd0519d8fb183c78125f1a0be183
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, masquerading as a passport application to entice clicks. The ML classifier strongly indicates maliciousness, and the presence of numerous external links points to a link farm or phishing attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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=australian+passport+application+pdf+child In PDF document text
    • http://files.redpillsentinel.com/uploads/1/3/1/8/131856306/d413e.pdfIn PDF document text
    • http://vorimede.oakdalestampede.com/uploads/1/3/2/7/132710621/8474722.pdfIn PDF document text
    • http://files.roger-pugh.com/uploads/1/3/1/4/131453018/8926736.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/1/0433/5144/1563/files/jemotara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0064/2211/files/battlestar_galactica_episodes_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/neladugoxiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9951/2231/files/51574803821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/96358921993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/kugesip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2541/5843/files/elementary_differential_equations_10th_edition_boyce.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3588/5725/files/29593486035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1551/1964/files/lixofopedizimagixuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8395/files/41189245101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4056/files/xonowaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6473/7448/files/loloneparekiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/mukafupuwusonas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4188/2265/files/lofegobujefilopakotid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9643/2021/files/zujid.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_off00006a4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4E 5232 bytes
SHA-256: 900b6043b6673affacf63c9b9c159751a93ed5c298985755d4052a89f1c15948
font_01_sfnt_off00007c17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C17 9908 bytes
SHA-256: ef329f7ec910ef96e32bec38c57d47c759dd14174f9a0fa9652d517b360a76f8

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