Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9c923029144cbd2…

MALICIOUS

PDF

88.1 KB Created: 2020-08-10 21:18:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a8eb2d147c7b2c5c3493d9c0879ad11 SHA-1: 19053360f6af592c97557fb9e1511b6758b06955 SHA-256: d9c923029144cbd2aceb6f88bed7e3ed116704e5639bab6ef8dfc6a2ed1d3640
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is disguised as a workout guide. This indicates a phishing or malware distribution attempt. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF documents, many of which are hosted on Shopify. The primary malicious URL is https://ttraff.ru/pify?keyword=bony+to+beastly+workout+guide+pdf.

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=bony+to+beastly+workout+guide+pdf In PDF document text
    • http://files.sciguy2012.com/uploads/1/3/1/6/131637656/wanil-renirawagav-dowirumigom-worilekofoboda.pdfIn PDF document text
    • http://files.lovesocialcafe.com/uploads/1/3/0/7/130738971/zosise.pdfIn PDF document text
    • http://files.cathypacematthews.com/uploads/1/3/0/7/130775912/0d647.pdfIn PDF document text
    • http://files.elasad.com/uploads/1/3/0/9/130969470/kuwed_niwub_koselotel_kufemevuneziso.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/1/0435/2750/4024/files/4727012393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7248/6564/files/10th_class_biology_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7990/9030/files/25876256483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5529/9237/files/balance_of_payment_of_pakistan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1609/2828/files/25160458675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/70172633071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/walezilufotalenuzodumis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0401/0389/files/8688948768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7593/5135/files/muduwefoxok.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010f0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F0E 5536 bytes
SHA-256: df7ab4a4ece0a3c724d15fbb0f6b2fee6b1f1858486bdf219b5caba855759010
font_01_sfnt_off00012205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12205 10296 bytes
SHA-256: ba171370ed91d692329086f376b01004a33d96a00be570d833a3e58d925c9119
font_02_sfnt_off0001453f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1453F 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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