Malicious PDF — malware analysis report

Static analysis result for SHA-256 818fcf3489daecee…

MALICIOUS

PDF

34.8 KB Created: 2020-08-16 18:01:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 540634f55c654d489f5f04016932bb54 SHA-1: 74e8e51b8a9e2642783454f7fff5ad11aecccda1 SHA-256: 818fcf3489daecee0dbfe15524ebfcda24ca62dffb90f164310611bf08c2503a
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 malware distribution attempt. The presence of a 'download button' lure reinforces this. The embedded link 'https://ttraff.com/pify?keyword=brownman+revival+album+free' is identified as a malicious redirector, likely serving as the initial stage for a payload download.

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=brownman+revival+album+free In PDF document text
    • http://files.perspectate.com/uploads/1/3/1/3/131384171/ruwabupojazewu-zaxemazus-zutoxin-vemutiwevabuxu.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/1/0441/1087/2728/files/converter_to_word_app_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5982/1209/files/10108046873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9376/9894/files/10265994173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7993/3862/files/bekedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6019/8557/files/zokakibutogexag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7217/3733/files/british_council_vocabulary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3393/4496/files/pixumujogad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8773/8533/files/riduzuximifesofavuxutoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9449/7698/files/the_scarlet_letter_study_guide.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 3

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_off00004abd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ABD 5076 bytes
SHA-256: 89aff65463f1527c560bc4f2bfc831bd95584fc9cc31e41359f95dd40ff56d62
font_01_sfnt_off00005c00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C00 10180 bytes
SHA-256: 988aee1de9be459067c2632cd6533c41c380fd39bb19491918defd75af28648a

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