Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b64e1a2cbea2bab…

MALICIOUS

PDF

42.1 KB Created: 2020-08-23 14:33:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8683e3eec6f6f348278d6a795b2abfe9 SHA-1: 7c48bbf27aef249bb9492b38590ac10cf1297d41 SHA-256: 9b64e1a2cbea2babf6b5a49f0d2921544c147986cf09c64673d812f08659b82f
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as a free ebook download, but the primary link redirects to a malicious URL (https://ttraff.cc/pify?keyword=digital+marketing+ebook+pdf+free). This indicates a social engineering attack aiming to redirect users to malicious infrastructure. The PDF structure and embedded links suggest a link farm technique to obscure the malicious destination.

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=digital+marketing+ebook+pdf+free In PDF document text
    • http://files.missjordansclassroom.com/uploads/1/3/0/7/130776841/5406440.pdfIn PDF document text
    • http://files.raingirlphotos.com/uploads/1/3/1/4/131437930/782cc0.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/1/0461/9999/6569/files/bitijisebawusobemotafedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9284/4448/files/resalemurajovuritefuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6905/4886/files/bulajezofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9393/4748/files/antiquities_act_1975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/36194295400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0913/6024/files/zurako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riginijulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2171/4079/files/6711520799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6570/4602/files/fauda_imdb_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6857/1299/files/tipos_de_acretismo_placentario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0802/2938/files/zapupim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/wufaleteru.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_off0000661d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x661D 5388 bytes
SHA-256: e2aff1cbe9361ed2ad5f02ee6283f4fe51526aee9e216e29274542a3d95966c8
font_01_sfnt_off00007855.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7855 10360 bytes
SHA-256: b84e1e06f8a762306b1bb401e5c346488628de0400de506755a6da886b79c437

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