Malicious PDF — malware analysis report

Static analysis result for SHA-256 df281c391a2daab6…

MALICIOUS

PDF

47.9 KB Created: 2020-08-09 05:06:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a49b314abcf12ee01c5dc0673a75072a SHA-1: 387aaed5c728052723b63305f335046ad2a2361c SHA-256: df281c391a2daab61dec49dbf685f889e23b10d08663a1cf6c4b80d6fc6494b2
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 'https://ttraff.cc/pify?keyword=raci+matrix+project+management+pdf'. This URL is embedded within the document body, disguised as a legitimate document. The PDF also contains a mass external PDF link farm, with many links pointing to Shopify domains, suggesting an attempt to obscure the malicious destination. The ML classifier strongly flagged this PDF as malicious.

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=raci+matrix+project+management+pdf In PDF document text
    • http://wemobu.kofc4924.com/uploads/1/3/0/9/130969465/lixosowelaz.pdfIn PDF document text
    • http://tejax.nrt-ias.org/uploads/1/3/1/4/131437615/2f0bfe23.pdfIn PDF document text
    • http://files.permacultureinschools.com/uploads/1/3/2/6/132696483/5362023.pdfIn PDF document text
    • http://files.britishcolumbiaschoolactsection177.ca/uploads/1/3/1/0/131071164/47c5a1fc2a.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/1/0431/6915/3181/files/nagajuxetivolutux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kekesapenogetiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4925/4050/files/how_to_analyse_company_balance_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5255/4657/files/puxigakuvipuxisifufivebif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3765/5193/files/tewarubozivujus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7357/5841/files/62309703241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6710/4664/files/jelunofuluzes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9877/6487/files/bojupubesomuvemavevogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7405/9430/files/datadazagixajiniwipafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewobaropelizovijekozuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/6841/8206/files/acs_analytical_chemistry_practice_exam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7726/1729/files/lean_bulking_workout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8759/2608/files/gesuzewate.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_off00007b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3D 5416 bytes
SHA-256: bcaadb3dc593353db61ec9053d33d65e65f6692b8e1e249338b1e079c67d72ca
font_01_sfnt_off00008da8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA8 10388 bytes
SHA-256: f7e611a9f70655edcae3f0f794e93e04791e8d9cfcfbf11f81442dd7c9f8b892

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