Malicious PDF — malware analysis report

Static analysis result for SHA-256 08221081ecf02e7b…

MALICIOUS

PDF

40.5 KB Created: 2020-08-15 08:44:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 153f6287829e705ac6adbee898156abf SHA-1: 7726ca0705377654e4c473fe2098dd8d530d43a9 SHA-256: 08221081ecf02e7bc2d2289cf7b6eee3cd9c9bbb11420d5cfdfc63b8caba4c83
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The embedded URL 'https://ttraff.com/pify?keyword=online+code+formatter+javascript' is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files, likely part of an SEO poisoning or link farm strategy to attract victims.

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.com/pify?keyword=online+code+formatter+javascript In PDF document text
    • http://files.endgamefit.com/uploads/1/3/2/7/132712000/pumadujedowi-zavixawirepub.pdfIn PDF document text
    • http://files.dididothat.net/uploads/1/3/1/4/131453821/0a9dd5887455.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/1/0431/0636/9703/files/autobiography_of_a_yogi_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8207/2732/files/63998493097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/pilavesogomovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2499/8819/files/32736005439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0182/9797/files/negutexademulesalamak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0639/9388/files/hard_spelling_bee_words_for_college_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/fitusojibigunaxuleveketi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8710/9023/files/ridavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/mivekemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/encyclopaedia_eorzea_compressed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27347714529.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_off000059c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59C6 5464 bytes
SHA-256: eae361adb9a2389188062f768783462711c93c723bcb852c7eb9ea2df3b001cc
font_01_sfnt_off00006c4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4B 12780 bytes
SHA-256: a2cbeae89c5a4cb0e6440473e3d0057fddc796e9f5740c07aa59fce1cd65612d

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