Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e2d11a3f2f94b38…

MALICIOUS

PDF

43.9 KB Created: 2020-08-12 21:52:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6804925268e60aabae889090537e387e SHA-1: 78bbeabcdb6d42051108b3e8e864216a7441ba73 SHA-256: 7e2d11a3f2f94b3885f10850052100ab7dd23a0f1ad0866028579465358b5821
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to redirector infrastructure. The primary redirector URL, 'https://ttraff.cc/pify?keyword=learned+optimism+pdf', is flagged as malicious. The document's structure and embedded links suggest a phishing or malware distribution attempt, likely using a lure related to 'learned optimism'. No scripts were extracted, but the presence of multiple malicious links indicates a high likelihood of a 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.cc/pify?keyword=learned+optimism+pdf In PDF document text
    • http://files.linemantrainer.com/uploads/1/3/1/4/131438405/7482358.pdfIn PDF document text
    • http://files.miortuk-alaskan-husky-kennel.com/uploads/1/3/1/4/131406149/75140.pdfIn PDF document text
    • http://tumaru.neverwares.ca/uploads/1/3/0/7/130776688/patev.pdfIn PDF document text
    • http://fadaru.en.agiteysirva.com/uploads/1/3/1/3/131382406/dobewiru_ronil_kodotovisu_besalade.pdfIn PDF document text
    • http://files.corbyphotoclub.co.uk/uploads/1/3/2/6/132681558/6038489.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/1/0432/2656/2722/files/50402040536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1628/0475/files/tewaruvokajemajofud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3425/5265/files/1104208753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1049/7434/files/dijizedis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/10th_class_2020_date_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6615/files/9555798126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0601/7186/files/60036946374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/gefunulurawanojop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/razikeruranofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6958/7104/files/katidafofositijiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8262/6710/files/gavuxojijotonasibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3618/0634/files/3ds_max_tutorials_for_beginners_in_urdu.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 8

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_off00006def.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEF 5096 bytes
SHA-256: 2efe9a41288a092af69e4a124f79c37bb6fc0f27f7990ed8c6efbc589df94464
font_01_sfnt_off00007f2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2C 10352 bytes
SHA-256: a32f377e87d240a58008526fd26bbc4742af3b00c97e2327d17b0941dcc7a913

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