Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a44404b01e35f0e…

MALICIOUS

PDF

41.8 KB Created: 2020-09-17 09:01:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 73d2b0a7fc0d0a1f8f8fe2d36753323f SHA-1: b7f14a467b9af5b4085614b56f59de8a5f30aff8 SHA-256: 8a44404b01e35f0e6aec80a2f2ff632c6c3d898eb9e07823a3f60d1471e165e8
194 Risk Score

Malware Insights

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

The PDF contains a link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the string 'Megaman project x 2' and the malicious redirector URL, suggesting a lure for a fake download. The PDF also contains numerous links to external PDFs hosted on Shopify and other domains, likely part of a link farm to improve search engine ranking for malicious content.

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.link/pify?keyword=megaman+project+x+2 In PDF document text
    • http://mewopad.nerdynicodemus.com/uploads/1/3/0/7/130738568/17f28.pdfIn PDF document text
    • http://files.prettycardsandmore.com/uploads/1/3/2/3/132302892/josenolufepu_xodanakiza_kepinilebigoma.pdfIn PDF document text
    • http://files.dzobel.com/uploads/1/3/0/7/130740078/9359137.pdfIn PDF document text
    • http://files.mandarin4u-sd.com/uploads/1/3/1/3/131398052/67dce41.pdfIn PDF document text
    • http://tawizozir.dressingroompoetryjournal.com/uploads/1/3/2/6/132683169/rafipaban_linikisa.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/1/0429/1287/4662/files/process_assessment_and_improvement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1741554469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0562/3972/files/ultherapy_hifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9466/1538/files/17366172438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0536/9758/files/14921279223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5173/5448/files/public_policy_making_models.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3671/2861/files/99200581864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6992/2714/files/puzupipivogigokuboximub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85986419962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5724/9430/files/77427357989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2090/9735/files/fowirowob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2500557594.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_off0000626b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626B 5324 bytes
SHA-256: 6a8cce4fa4b9aaaa0abccff61c17092daaf4ed5e59a7645c52300ea2412c6ff1
font_01_sfnt_off0000748e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x748E 11932 bytes
SHA-256: fbe48fc4b9ebe57abdb44c43769f2a9f75d50ae0b2840585b3ed31c112783041

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