Malicious PDF — malware analysis report

Static analysis result for SHA-256 057e02bdf99b3f6e…

MALICIOUS

PDF

60.9 KB Created: 2020-08-22 02:50:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3b17059cd1b882b04d9b75f7b6042a3 SHA-1: 4624b9fafd413fb934402f1401b383203ec64cba SHA-256: 057e02bdf99b3f6eab28db3179b9da11143798b87da0f3e505b40ae5b4630fc9
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains a reference to the same malicious URL, suggesting an attempt to trick users into downloading further malicious content or visiting a phishing site. The presence of many external PDF links also indicates a link farm strategy, often used for SEO poisoning or distributing malware.

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=former+archbishop+of+canterbury+carey In PDF document text
    • http://files.nych2o.org/uploads/1/3/2/7/132740502/dasujijuk.pdfIn PDF document text
    • http://files.michaelkressdesign.com/uploads/1/3/0/7/130775245/be842aa3e99.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/1/0438/0141/1744/files/special_occasion_speech_topics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0508/3811/files/9502606324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7352/3112/files/bejisajilixawifadeveke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7107/7526/files/24178525322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5842/9078/files/present_perfect_tense_exercise_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/72238717004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/7275/7406/files/18909029891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0185/6679/files/worimesomelolasuvaxavole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/1591/3892/files/fexov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9902/0696/files/prepatellar_bursitis_nhs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4343/0305/files/tuxepisozorinudedawuduvo.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 3

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_off0000b10b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB10B 5420 bytes
SHA-256: c604259255a3d8301a292e1f859f94452ad839b1cf1d1c9b1a1947af166fb253
font_01_sfnt_off0000c35c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC35C 10228 bytes
SHA-256: 0bc807f2265c3c9b1f1ba06e37f188eea3b3c313b16fdabd417110f84a17ff99

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