Malicious PDF — malware analysis report

Static analysis result for SHA-256 54a628069788704a…

MALICIOUS

PDF

46.5 KB Created: 2020-08-22 23:40:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4e1e32596228b6af2d4d6b4a052b9e19 SHA-1: 1181b674c1d8e09c528a5e767585f40fa962da24 SHA-256: 54a628069788704a1b8a4116bb32555b67c9fe1fa61b02c4e6d5068180f3787d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to 'Family roles therapy worksheet' and a URL that appears to be part of a link farm. The primary malicious URL is https://ttraff.ru/pify?keyword=family+roles+therapy+worksheet, which is likely used to redirect the user to a malicious site.

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=family+roles+therapy+worksheet In PDF document text
    • http://files.vivalavisa.net/uploads/1/3/0/9/130969204/nugikimivebokew_viwajewowolisev.pdfIn PDF document text
    • http://sugexez.openthedoorleadership.com/uploads/1/3/1/4/131453558/dadixexoxovore_zezax_zigitetob.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/1/0443/1645/9164/files/23262490661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2423/5170/files/add_math_igcse_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4233/3084/files/vexations_erik_satie_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/41623334701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5632/3995/files/14074535198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7014/2117/files/83835699887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6899/5224/files/jedabopamamemufadajisek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4853/files/constructing_perpendicular_lines_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/tusupuwosiforofavoxag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8982/9800/files/33763491248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3881/0010/files/2522559259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5565/1743/files/19051310344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7773/0455/files/gikopimurim.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000699e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x699E 4952 bytes
SHA-256: 87d6cc020f17e355c9ea2bb6430e9f5e91a87346edfc314a4a128bb0ee7ca146
font_01_sfnt_off00007a8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8D 10656 bytes
SHA-256: da78567387c6b17bf2ccc11930fd960a4325b561116d649948fc124df3389659
font_02_sfnt_off00009ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EF9 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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