Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9e8dca7b303325b…

MALICIOUS

PDF

60.0 KB Created: 2020-08-02 17:02:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7dc5b4f08458f5d074882f78abc897dc SHA-1: 49c33c72b46c2a461b0881d18c0f6221c5135812 SHA-256: a9e8dca7b303325bada74d11935e7fff28f2d27be8f8bb9bacb57f7dd0fa5aa6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment T1071.001 Web Protocols

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=aws+s3+faq'. This URL is likely used to redirect the user to a malicious site. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt. The embedded document body text, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent.

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=aws+s3+faq In PDF document text
    • http://files.allnaturalservices.com/uploads/1/3/0/7/130739949/3a517a404.pdfIn PDF document text
    • http://files.zanegerringer.com/uploads/1/3/0/7/130775336/7475165.pdfIn PDF document text
    • http://files.stmarysmidleton.com/uploads/1/3/1/6/131607131/vawugalala.pdfIn PDF document text
    • http://files.parsonswoodartistry.com/uploads/1/3/2/3/132302941/6690578.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/1/0434/4994/2176/files/49269718464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1306/8184/files/83658050389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/raxejekijuniduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3968/5799/files/smith_and_wesson_39-_2_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8971/files/xiduvovulizata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1915/6130/files/56454138281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/natovamekabonexagokiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vinujavezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3478/files/bativol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6148/6503/files/27902393253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3582/0185/files/52440575929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0637/6611/files/giorgio_moroder_daft_punk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2647/2345/files/35466450310.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_off0000acb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACB8 5004 bytes
SHA-256: f2c24967f7cec98005f5d78801b7fdbd9e02f0bc1d172deec387ad13963fba04
font_01_sfnt_off0000bdf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDF1 10952 bytes
SHA-256: e13067d75fa4499e507b71127b79f2f94cdaa46b4ed55942b60ae112382a577f

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