Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf6da9660fb4d3ae…

MALICIOUS

PDF

34.7 KB Created: 2020-08-05 09:49:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b299dfb2fa3272b2626711884e74c19 SHA-1: effe3fad368035e0056166dd87320a4670f7acc6 SHA-256: bf6da9660fb4d3ae9de2bcf11a84da10f7834fd794e4a987653b7d0490c24efb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on Shopify and other domains, consistent with a link farm or SEO spamming technique. The primary malicious URL is used to redirect users, likely to a phishing or malware distribution site.

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.cc/pify?keyword=join+pdf+files+online+free In PDF document text
    • http://files.subwaystash.com/uploads/1/3/0/9/130969809/zurolawukeka-zutajopuba-dikonafipimas-wudobatefef.pdfIn PDF document text
    • http://kaxipa.nathannewcomerart.com/uploads/1/3/1/0/131070161/5d4eb5c.pdfIn PDF document text
    • http://files.hartlandseniorcenter.org/uploads/1/3/1/8/131858540/63748.pdfIn PDF document text
    • http://files.baptistelakecampingandstorage.com/uploads/1/3/1/8/131856743/9722473.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/1/0434/7274/8710/files/dodugebanobulajijakar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/18792941540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/58683349920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/fejako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7506/6273/files/graphic_design_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6658/0382/files/how_to_hack_diep_io.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8163/7794/files/56803367370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/xujoxuduromo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4505/9749/files/jaxufafepavexari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1985/files/resasemud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/wemegaxisoparerevalezaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1615/7344/files/40213785781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1035/7405/files/dubininizarozusofux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2512/9894/files/mibezinukepikiti.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 7

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_off00004c3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C3D 4816 bytes
SHA-256: 1c627cb30579df3af536ca3675c39c33eab8cdc50a0816e8d14e7affef1b95c9
font_01_sfnt_off00005cab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAB 9836 bytes
SHA-256: 1d7ca10316add2dcc9bbed7a7f6de2f513ef9c908a4a0e220cef0c3642929708

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