Malicious PDF — malware analysis report

Static analysis result for SHA-256 4727305fe57201de…

MALICIOUS

PDF

39.3 KB Created: 2020-08-22 14:19:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 21e126b5d065c1a482df1b3d8c829af4 SHA-1: a90bcd9a02552225c0cb709704ca859a4494a95f SHA-256: 4727305fe57201de9f594e31754c48eca9a4b0244eb21e97a181f4036e2a9b4d
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is likely used to deliver malware. The document body also contains the same URL and references a game download, indicating a social engineering lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely for SEO manipulation to increase visibility of malicious content.

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.com/pify?keyword=brothers+in+arms+full+game In PDF document text
    • http://rumid.stemteachershou.net/uploads/1/3/0/7/130775354/mimova-xivur-lowalukoxopike-kuziseveb.pdfIn PDF document text
    • http://jodun.elizabethfeltsdesign.com/uploads/1/3/1/3/131381241/jelifutujisapij.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/1/0433/8014/6339/files/faxikifazojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9071/5548/files/never_be_alone_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3608/0285/files/90039211892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/75605944175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6547/5226/files/32917758037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6982/3390/files/como_transformar_bolivares_a_pesos_colombianos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4546/5762/files/civil_engineering_fe_exam_preparation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6624/2710/files/dorelubosawikamumixereva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8099/7269/files/captain_s_daughter_pushkin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6289/4498/files/50_shades_of_grey_download.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 4

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_off00005d36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D36 5232 bytes
SHA-256: 1148828c1f032977b713f9475a4b1e03052ca33addfb4bc5b0409f3bbdfa2924
font_01_sfnt_off00006ed9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED9 9932 bytes
SHA-256: c24c1db1dcd8ec7599833c4ee6f994de469bf16ab6f8dc0012cfbd7c3e400c0f

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