Malicious PDF — malware analysis report

Static analysis result for SHA-256 12ec1cb3bd58e67f…

MALICIOUS

PDF

42.4 KB Created: 2020-08-16 21:16:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f379e61fd8dd59e86483dd2dff43991d SHA-1: 59eccf7d9dd5a1c1b0dd130bbc544293f38aabbf SHA-256: 12ec1cb3bd58e67f94fe29ffec7f4f1184fbc7aa00c4ef325e44737b499e2b61
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL, suggesting an attempt to drive traffic to malicious infrastructure. The document body, though heavily obfuscated, contains the redirector URL and multiple Shopify URLs, some of which are benign and others unknown. The presence of a malicious redirector and the overall structure indicate a likely phishing or malware distribution attempt.

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=place+value+expanded+form+worksheets+3rd+grade In PDF document text
    • http://files.tricotting.com/uploads/1/3/0/8/130873872/b044475d.pdfIn PDF document text
    • http://zabav.ohkdiving.com/uploads/1/3/0/9/130969352/genumi.pdfIn PDF document text
    • http://files.agnieszkarudnicki.com/uploads/1/3/1/4/131406403/mufunusodizenof.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/1/0435/0004/4454/files/directv_hr54-_500_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/vosabezejijefuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/wapavatumijonelegurigutaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/ayatul_kursi_bangla_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4540/files/el_alienista_caleb_carr_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9938/1157/files/74463163848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4764/8406/files/17211249401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3313/2184/files/94277355236.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 2

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_off0000673b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x673B 6020 bytes
SHA-256: 45299d2492a6b347790bab86b23b394a93bfee4f4db6759b67520534f3355342
font_01_sfnt_off00007ba0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA0 9812 bytes
SHA-256: 1c648be560c2a8a1e2fa30f6bf14b22a8fc4e5cdf6c1fc5dfb600df5bfa32ba4

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