Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9a6db4ec416b72c…

MALICIOUS

PDF

42.6 KB Created: 2020-08-19 18:54:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93bc5687728e26fd709bda3907b14308 SHA-1: bf357470407b78c4a7f95501307fcfcf57a4b821 SHA-256: c9a6db4ec416b72c85f1dabf580e65d0acec830dd3bf94f331400c3782740760
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to its extensive use of external links, a technique often employed for SEO manipulation or to distribute further malicious content. One critical heuristic flagged a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=crappie+guides+near+me'. The document body contains garbled text but includes this URL and other PDF links hosted on shopify.com, suggesting a link farm or redirection strategy.

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.com/pify?keyword=crappie+guides+near+me In PDF document text
    • http://files.intermountainregionpc.org/uploads/1/3/2/3/132303310/ludepu_rokevipipidaja_nejufagiva_funuwizapanat.pdfIn PDF document text
    • http://nulataxir.janetbabymom.com/uploads/1/3/1/8/131856602/danajitiji-milidunuxapet.pdfIn PDF document text
    • http://files.thechurchwithamission.com/uploads/1/3/2/7/132740692/zixowaxedul_busopimotem_padige.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/1/0430/0580/4698/files/rufalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8900/2653/files/wimobodajixupeliwefusoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8472/4889/files/risosemejomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3825/0910/files/photoshop_cc_2017_amtlib._dll_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2666/7925/files/tegifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3767/7989/files/fofami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5604/4955/files/zezupekid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tolipokegegami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/2193048300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7221/5448/files/chilasow_video_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/66138295751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/bitawumaruji.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_off00006927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6927 5152 bytes
SHA-256: 369f96d671d8a4df440eec086f4cfca22873afbbfaec126e3e799965f17a2933
font_01_sfnt_off00007a93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A93 10288 bytes
SHA-256: 106933b9cbc4ce6ef13507b13b2b3cd22c51c502385c90626e3fbe901c2916e8

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