Malicious PDF — malware analysis report

Static analysis result for SHA-256 303d6d071fbe333b…

MALICIOUS

PDF

54.2 KB Created: 2020-08-28 14:23:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 673a7120fbba670c5a1096f1298e9f31 SHA-1: 54571cbb893533a72d25d72f55dbd0abe674e1bf SHA-256: 303d6d071fbe333ba6d3b99d04e1d2d4ce02d55b24c131cc9d4b14cf90b3cd0f
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the embedded links, https://ttraff.com/pify?keyword=nokia+5310+xpressmusic, is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a Nokia phone and the redirector URL, suggesting a lure to a malicious site. 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.com/pify?keyword=nokia+5310+xpressmusic In PDF document text
    • http://vasonexu.jessethomascomics.com/uploads/1/3/2/6/132695839/dokaj.pdfIn PDF document text
    • http://files.alternativeathletics.com/uploads/1/3/1/4/131406785/20a32fbb8.pdfIn PDF document text
    • http://pusirim.cbarealtygroup.com/uploads/1/3/2/6/132682076/refalagajo-mivapiwepazu-denezuxusu-rasavujozafuza.pdfIn PDF document text
    • http://files.fieldhouseantiques.com/uploads/1/3/1/0/131070434/6e1ba44ade166b.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/1/0463/9073/9099/files/via_karaoke_digital_mixer_service.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1465/1038/files/rupomofidijofesir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7541/9798/files/fojid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9015/7474/files/xerufibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5243/2537/files/97961736335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3448/4648/files/74771743070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3859/6511/files/73738508879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2862/8135/files/jigotenutatagivijude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/woxiluponiwovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9418/7933/files/vawezaferugez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5286/7494/files/gisodogalelejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7352/8223/files/bironivisemupajix.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 6

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_off00009367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9367 5632 bytes
SHA-256: 19601bd5526d00e788a726e7c1f6bab8f1465efda5f894c397acc756f5893371
font_01_sfnt_off0000a67d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA67D 10880 bytes
SHA-256: 9652dc120fe68426c9089f14fc118465d90ac3476fc48524421c9882c8ca95b7

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