Malicious PDF — malware analysis report

Static analysis result for SHA-256 059ddbff3c17bc54…

MALICIOUS

PDF

46.9 KB Created: 2020-08-11 06:47:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 208a0261a350d6bb30bb92a59cc8113f SHA-1: f79822f5972a5788af3d66946b35b4c3437137da SHA-256: 059ddbff3c17bc54aae30a5dd656e0e8d095d4ba7a763ce4473f045f00794cc4
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to redirectors designed to host or distribute further malicious content. The document body and heuristics indicate a lure for free downloads, likely leading to malware. The ML classifier strongly supports the malicious verdict.

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=dias+chemistry+notes+pdf+free+download In PDF document text
    • http://files.antonellascafe.com/uploads/1/3/2/6/132695887/7582891.pdfIn PDF document text
    • http://fuwomeled.keywestresortcasino.com/uploads/1/3/1/3/131380600/081a42.pdfIn PDF document text
    • http://sukitif.anglewoodestate.com/uploads/1/3/0/8/130874474/8a5acd0c6.pdfIn PDF document text
    • http://files.argos101media.com/uploads/1/3/2/6/132696077/xuwetus.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/1/0431/2281/9233/files/lekobukojosidog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4295/4661/files/98684616538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/bupijifako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zetuvoveluganimuwejipas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5440/7580/files/9758811833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8900/2653/files/poterutubezeponuxagukizak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2732/4310/files/7203642540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0336/2973/files/dayc-_2_scoring.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9843/0876/files/leadership_dubai_style_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/burenatefofuvunozapowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2328/6940/files/64841579392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8130/9083/files/synthesis_of_benzothiophene.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54F2 5376 bytes
SHA-256: a027ff1379ad07f05567cb694792342af510cfc94be8baae9b50a9f30cef3e93
font_01_sfnt_off00006724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6724 10404 bytes
SHA-256: bec2c6fc5ecd20a9e04b38ce79de3e53a09e2627ee6f6de1d14247aa789848ed
font_02_sfnt_off00008ad6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD6 16164 bytes
SHA-256: ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1
font_03_sfnt_off00009fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FEE 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71