Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d1e910fb8dc9331…

MALICIOUS

PDF

43.1 KB Created: 2020-07-25 23:16:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80e90a880fbda24d8172a576c0dc4840 SHA-1: d98129f49cee1a6d03145fda7f092618bd7a2177 SHA-256: 8d1e910fb8dc93314d6bffbd06adeeebe2d44a0c0528d06c9956b3bb56670130
194 Risk Score

Malware Insights

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

The PDF file contains a lure related to railway reservations and is heavily populated with links to external PDF files hosted on Shopify. One of these links, ttraff.com, is identified as a malicious redirector. The large number of external links suggests an SEO manipulation or content distribution scheme, with the primary malicious link acting as the entry point.

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=railway+reservation+form+online In PDF document text
    • http://files.nightingalemedics.co.uk/uploads/1/3/1/8/131857114/3209393.pdfIn PDF document text
    • http://files.palaunisc.org/uploads/1/3/1/6/131606360/3846503.pdfIn PDF document text
    • http://files.allisoncamerongray.com/uploads/1/3/0/9/130969992/4421908.pdfIn PDF document text
    • http://files.integrativetranslations.com/uploads/1/3/0/7/130776205/adb381ca0f.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/1/0429/8027/8426/files/wixojizusepugoxeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5883/9203/files/tabimafovujabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/togina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4146/3189/files/basenepawibarazaxifop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2766/8890/files/dovuwiduv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/paxesufepusip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8640/4000/files/91525404493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1996/8417/files/fabafikiritazepeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/80718830576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/voriwazikevamapaziru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/bugotopepanirovekesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7796/7778/files/kitopadunak.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_off00006dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC7 4960 bytes
SHA-256: 7b7ebeb2672f0116ba86a7097be9262812604782968cd69c71171e10cd09cc8b
font_01_sfnt_off00007ea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA1 9656 bytes
SHA-256: eab7b5d7604db1a1adadde6917a140119bcfe22ac79978cace2401e8a1470bc3

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