Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b12979fab2ebaaf…

MALICIOUS

PDF

38.8 KB Created: 2020-08-02 10:03:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 920458d0e4584c473e42acd3e59d4a46 SHA-1: f75b4bfb3ac63d9c83e77891b0babeb8ac62a3c1 SHA-256: 2b12979fab2ebaaf49bf3eea78a18d15a81f8625a1b7a5549fc4163cc22a5003
214 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body also contains the same malicious URL, suggesting a phishing or scam attempt to trick users into downloading potentially harmful content. The presence of a link farm and SEO redirector indicates a tactic to obscure the final malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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=essentials+of+economics+8th+edition+pdf In PDF document text
    • http://files.rsconcerts.org/uploads/1/3/2/7/132710763/5452169.pdfIn PDF document text
    • http://files.fourcornersencampment.org/uploads/1/3/2/6/132683330/magetilifakunorureje.pdfIn PDF document text
    • http://files.littlecrittersfarm.net/uploads/1/3/0/7/130739570/bawage_jikeroladija_tevirog_rofidu.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/1/0439/6823/3630/files/41129371304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/6938695771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5679/9647/files/lanuxenurorotodotujoxev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7573/9553/files/20606263091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3416/4893/files/29708698377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wevola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4130/8320/files/vosodidepabukoxabovev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8843/6643/files/92171044770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/gerame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4120/1064/files/ruwejumugivevoweni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/voveninakozujevalamowud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/dorutojuvi.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_off00004efd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EFD 5452 bytes
SHA-256: 212df1892ae5e93f09d66a3aeaf728e1bbf3d19fc9d902ff7f5f90f10f9a9589
font_01_sfnt_off0000616b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616B 14496 bytes
SHA-256: 84e32cbd983d322386f8d6a6943a048add48f03c97d89252855c24d32d447aae

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