Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d25eca9895cbde9…

MALICIOUS

PDF

35.3 KB Created: 2020-08-12 14:53:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef48c2c9f2f1e9c395d47286eb50cdee SHA-1: 64cdd9d9dbaa1b206c1cc03b107b13e68631d15a SHA-256: 8d25eca9895cbde922ecc6aca819931c2c7fba04b7f141b8a2dd643684cbce63
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The primary malicious link is https://ttraff.ru/pify?keyword=fly+me+to+the+moon+alto+sax+sheet+music+pdf, which is designed to lure users into clicking. The document body is heavily obfuscated but contains references to the malicious URL, further supporting the malicious intent.

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=fly+me+to+the+moon+alto+sax+sheet+music+pdf In PDF document text
    • http://files.dehrtocare.ca/uploads/1/3/2/7/132712306/7581212.pdfIn PDF document text
    • http://lorinom.weflymultimedia.com/uploads/1/3/0/8/130874431/4115589.pdfIn PDF document text
    • http://files.straymongrel.com/uploads/1/3/1/8/131871894/4cc60b638a0f8e.pdfIn PDF document text
    • http://pezotobe.mnelksyouthcamp.org/uploads/1/3/0/8/130814328/8211901.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/1/0433/0687/7080/files/65529241957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2934/9030/files/25924583015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/kefajesonen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1687/1336/files/60579268999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1445/3410/files/nagatorofokojoraso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5053/9940/files/menepubif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5425/1670/files/10960744969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3168/3484/files/35156826643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1044/0862/files/34052256161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7586/9599/files/now_you_see_it._2005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5719/3895/files/swing_low_sweet_chariot_choir_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9808/7328/files/jezizadegugefap.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_off00004b4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B4C 5424 bytes
SHA-256: 62dec66fadc692a60835ac57faa64306e7a5b171245cb29a331fc4c952d1b323
font_01_sfnt_off00005dad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DAD 10108 bytes
SHA-256: e3c872af87c716ceac402841ded1fd2728634a8b408501a077d29b58924cbc07

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