Malicious PDF — malware analysis report

Static analysis result for SHA-256 d74dce1b73ef759d…

MALICIOUS

PDF

38.5 KB Created: 2020-08-27 23:58:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 225d8b5dc953e09ec747e7c2d2fa592a SHA-1: 1dc77f008740a60ba53a0ddc179faf051f56ae58 SHA-256: d74dce1b73ef759d38898300e5938e42943eb229d33ec8d9aa95a4de9289f98b
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=icloud+generator+3.2.1'. This URL is associated with a link farm, suggesting a phishing or malware distribution campaign. The document body and metadata also reference 'Icloud generator 3.2.1' and 'wkhtmltopdf', reinforcing the lure. No scripts were extracted, but the presence of malicious redirector links is a strong indicator 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=icloud+generator+3.2.1 In PDF document text
    • http://fosiluro.oconnorsmusic.net/uploads/1/3/0/7/130739732/ziresivujofi.pdfIn PDF document text
    • http://wonizir.marinarena.com/uploads/1/3/0/8/130874153/3415017.pdfIn PDF document text
    • http://files.duke-consult.com/uploads/1/3/1/6/131637016/penin-kutasu-nuluvur.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/1/0447/5250/2935/files/disefobudubatetawitenela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0594/9590/files/free_to_word_converter_freeware.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/5012/2654/files/manual_de_vacunacin_2017_secretaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8978/0124/files/readworks_answers_key_the_national_guard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/ableton_live_manual_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0839/3369/files/xotig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5637/3670/files/24392386600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5280/1954/files/21605026084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1786/1277/files/sozopaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4854/files/riverside_food_handlers_card.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6500/6494/files/xadipiborodoxudezazibenan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6381/3020/files/nuwaromopavubosus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/6094339530.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_off0000585d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x585D 5248 bytes
SHA-256: 380af043da1a1e325998436eb45fbbab6be279e491998729cba64fa3e342fce8
font_01_sfnt_off00006a40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A40 10520 bytes
SHA-256: 03bebc48a51b6c18526cda2a24c7d41a30fa759f54c619ec290e5d7e87b3f191

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