Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a42a4d1c29cd153…

MALICIOUS

PDF

46.8 KB Created: 2020-08-23 17:19:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9378df87343dcb0ef64dd4950855b3f1 SHA-1: e29ba118012c1a9a79de2f10f2cce17918ed098b SHA-256: 9a42a4d1c29cd153b3e21311cc3fb175c57eca401f4602560e87d074e490a2e9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a mass of external links, many of which point to a redirector service. The document body text, though heavily obfuscated, contains a URL that is also present in the heuristics, indicating a lure for a game modification download. This suggests the primary goal is to redirect the user to malicious infrastructure. No scripts were extracted from this sample.

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=hungry+shark+evolution+mod+apk+latest In PDF document text
    • http://files.boatdocksolutionguy.com/uploads/1/3/1/3/131380005/a7009388.pdfIn PDF document text
    • http://files.michaelcroghanphotography.com/uploads/1/3/1/8/131856706/denamamawapofo.pdfIn PDF document text
    • http://rilag.steadfastleaders.org/uploads/1/3/2/8/132815806/6310961.pdfIn PDF document text
    • http://files.bestexpressions.co.uk/uploads/1/3/1/8/131857602/6915821.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1608/3877/files/53797124618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2871/6439/files/24863824616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4603/3818/files/basketball_rules_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1987/7024/files/4800128064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6789/1094/files/wiwajakenotenat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6038/7227/files/lenakusovesosujalemuzefix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5817/5908/files/46867909072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3646/5559/files/gusion_guide_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3752/2082/files/municipio_significado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/dilations_worksheet_kuta.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A83 5440 bytes
SHA-256: 082f2e825a8200d41c0b1df1f0b80ee538ce874ae7eb75f781f47929755f6ce4
font_01_sfnt_off00007cdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CDC 10336 bytes
SHA-256: fbbdf3dcc37d467ba994a36bcf7d8f595de2947426cb4ef52e596466852f5cb0
font_02_sfnt_off0000a038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA038 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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