Malicious PDF — malware analysis report

Static analysis result for SHA-256 1633119dfc6a77c3…

MALICIOUS

PDF

43.2 KB Created: 2020-08-08 08:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2eeb0a1a4e7a49301a332eb7320ac704 SHA-1: 3f336bc10ea64364e4d3d9e49f2584ca5e33af15 SHA-256: 1633119dfc6a77c32cf3525b2b826fb681ccbe8a9cf2f0c58b82384b4dbc98ec
194 Risk Score

Malware Insights

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

The PDF contains numerous links to an SEO redirector, specifically `https://ttraff.com/pify?keyword=adobe+pdf+editor+app`, which is designed to lure users into downloading malicious content. The document body and embedded links suggest a phishing attempt disguised as a software download. No scripts were extracted, but the presence of redirector links and the ML classification strongly indicate 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=adobe+pdf+editor+app In PDF document text
    • http://files.chicagocloud9limo.com/uploads/1/3/1/8/131860479/fupojobo_jevakoritumu_pekoz.pdfIn PDF document text
    • http://files.jeenayi.com/uploads/1/3/1/4/131437603/duzifomalomojudakamo.pdfIn PDF document text
    • http://files.rutheverett.com/uploads/1/3/0/8/130873872/metuvejega_vodiremirero_rutoruliselo.pdfIn PDF document text
    • http://files.mgracetransitions.com/uploads/1/3/2/6/132683088/nuvoxufamesas.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/1/0432/9065/6936/files/zakikidusawidirunobit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9911/2095/files/beautiful_in_white_satb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0658/1147/files/misanemosojesuzasuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/skyrim_filled_grand_soul_gem_id.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1263/7351/files/banking_regulation_act_updated.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/sais_messina_catania_aeroporto_orari_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8037/files/49105778520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5911/7206/files/80573765657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4423/9510/files/ravivomosowigifivina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8359/4917/files/25015257497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3651/6250/files/81877856024.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_off00006a56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A56 4956 bytes
SHA-256: 8eebeddeb816d4f5361d622654d690b31ea50c92c97d5ae19c9d573c99562cb9
font_01_sfnt_off00007b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3D 10772 bytes
SHA-256: 762f80d9a62d1e2b357b6b07c1dd04f1069877604398549e80d648efa2be61cc

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