Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9dffb5d036e7046…

MALICIOUS

PDF

41.4 KB Created: 2020-08-09 15:22:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e71363bb33edd54b252dcc10473af7c6 SHA-1: a347e347657f3178b17e889079f2833cca01f9b5 SHA-256: e9dffb5d036e704699491c4f7c787be7bf846602ba942aaffd566c482e7df139
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. It also contains a link farm with numerous external PDF links, many hosted on Shopify. The primary malicious URL is https://ttraff.com/pify?keyword=the+workflow+of+data+analysis+using+stata+pdf+download, which is likely used to funnel victims to a phishing or malware site. No scripts were extracted, but the PDF structure and embedded links strongly suggest a social engineering attack.

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=the+workflow+of+data+analysis+using+stata+pdf+download In PDF document text
    • http://files.eduk8.org/uploads/1/3/1/8/131871740/lixirusutejemu.pdfIn PDF document text
    • http://files.lochgoin.com/uploads/1/3/1/6/131607239/gutexal.pdfIn PDF document text
    • http://josiwo.crappyclassics.com/uploads/1/3/0/8/130874359/nudax.pdfIn PDF document text
    • http://files.emmamccabe.com/uploads/1/3/1/4/131453605/531c7895d2ee.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/1/0431/5627/5362/files/maralubova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/nafokeloxazositaveju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5446/5175/files/bajumape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0213/3656/files/35268708877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/2595642827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2029/6090/files/basketball_history_and_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1548/7133/files/32788596551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0961/2712/files/zepanuwesuvovikijumakixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7275/6648/files/routing_protocols_ppt.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_off0000624a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624A 5512 bytes
SHA-256: 310c60e68fd1ce6acef30820e6369193312ec0c5a0787569be4271b9f8ff303b
font_01_sfnt_off0000751f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x751F 10420 bytes
SHA-256: c03279ebfc68d14f339fa87e4f3793da7a29eefc710f9af20919ce03bee856e8

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