Malicious PDF — malware analysis report

Static analysis result for SHA-256 97f936d53dc0787e…

MALICIOUS

PDF

34.9 KB Created: 2020-07-31 20:12:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d310ed183c9ce451ad2fb769d494fb66 SHA-1: 301b9a3cfd4d3e6acae7504477965ff789c9b4e2 SHA-256: 97f936d53dc0787eb35b7ef1fa5d9a3c105d831bc1090a9898fa2d78bc175a4b
202 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=y+to+mp3'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body contains text related to 'Y to mp3' and a call-to-action phrase, suggesting a lure for users to click the malicious link, likely to download unwanted software or be redirected to phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=y+to+mp3 In PDF document text
    • http://files.tennesseefccla.org/uploads/1/3/2/7/132712096/8882839.pdfIn PDF document text
    • http://files.stephaniepercydoula.com/uploads/1/3/0/7/130775635/1474063.pdfIn PDF document text
    • http://files.mybaxterfamily.com/uploads/1/3/1/1/131164375/5d5d353f9.pdfIn PDF document text
    • http://files.catchamomentphotos.com/uploads/1/3/1/4/131453333/zapudiwazofefewogiv.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/1/0431/5050/8194/files/26714933586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4495/4527/files/zimakowid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3066/7673/files/soferawalagonosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1175/files/95282273861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6577/8080/files/52041204865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8611/7019/files/josuninomub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6150/1334/files/vokisamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9233/7059/files/buburaxajovowixebodut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/rorexewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9670/2104/files/61992495586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/86546869056.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_off00004d15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D15 4572 bytes
SHA-256: 532ba5e5340fb4efacf358dd42563d6f0bd2052cfbd1786a2139552c89672a63
font_01_sfnt_off00005ca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA2 10076 bytes
SHA-256: 4f8b26a58b25e5f6c847f8189d7be344cbb7470132fb07ca7d9e6ed8a3f47bec

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