Malicious PDF — malware analysis report

Static analysis result for SHA-256 0348e131e6039e13…

MALICIOUS

PDF

47.4 KB Created: 2020-08-25 01:16:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67bc00ea09bc2a0397b619e00fed0d3f SHA-1: c25b0b94c89d1e9f67d6351876a79d5643e1ea01 SHA-256: 0348e131e6039e1342017977a18337e1114b871f1534ddf7433588c65a543b7d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to SEO redirectors designed to phish users. The primary malicious URL identified is https://ttraff.cc/pify?keyword=steam+workshop+er+hearts+of+iron+4, which is presented as a download for a game-related item. The ML classifier strongly indicated maliciousness, and the presence of a link farm heuristic further supports a phishing or scamming 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.cc/pify?keyword=steam+workshop+er+hearts+of+iron+4 In PDF document text
    • http://files.daytonboatclub.org/uploads/1/3/0/7/130739996/9344dd3345e.pdfIn PDF document text
    • http://files.peacockmosaics.co.uk/uploads/1/3/0/7/130775361/mapijoriz.pdfIn PDF document text
    • http://files.askeaton.coralleisure.ie/uploads/1/3/0/9/130969551/2853094.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4717/2768/files/salusuwebekudar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/7903/2992/files/86935637135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/84486294179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/free_toefl_practice_test_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3892/4181/files/23327963332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3334/6719/files/48352730775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8197/3403/files/83567646477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0455/8488/files/novela_aura_carlos_fuentes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4639/6326/files/logo_quiz_answers_level_112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0019/1387/files/chemistry_and_pharmacology_of_anticancer_drugs.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 1

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_off000067b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B3 5244 bytes
SHA-256: 634b854d23a3ea4f166032108e08d9e8c5c77aeb6d9fa4e904cd863c402ab059
font_01_sfnt_off0000796c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x796C 12816 bytes
SHA-256: 57b808e1821c463cc17dfd48013d6dc582488f1a0dac24c17dbda39ed1211493
font_02_sfnt_off0000a259.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA259 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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