Malicious PDF — malware analysis report

Static analysis result for SHA-256 12e37a57c9201738…

MALICIOUS

PDF

48.6 KB Created: 2020-08-11 02:51:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: adb7e442e1ac6ed508e088d7f19355fb SHA-1: 71ea98cce3356e34d980bebadef7daaea3da99dc SHA-256: 12e37a57c9201738384a6d72191516f05e19062367fcb940c9c989c939d6927e
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body itself contains obfuscated text and URLs, including a direct reference to the malicious redirector. This suggests the primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, but the PDF structure and embedded links strongly indicate a malicious intent.

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=cracker+barrel+gluten+free+menu+pdf In PDF document text
    • http://files.sitting-at-his-feet.com/uploads/1/3/0/7/130739826/bubonujoror_jeniw.pdfIn PDF document text
    • http://sabupo.talaldaoud.com/uploads/1/3/0/7/130775997/vuzogaxekawep_xutinutetulim_lejerarinilomaz.pdfIn PDF document text
    • http://files.baremedispa.com/uploads/1/3/0/7/130775974/japudufoboxewavinek.pdfIn PDF document text
    • http://juravupog.clearwaterridingschool.co.nz/uploads/1/3/0/7/130776791/gukunedekidepopef.pdfIn PDF document text
    • http://files.georgia-sabatier.com/uploads/1/3/1/1/131164479/pujizivomifixav_tamumevavox.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/1/0434/0423/0805/files/trick_house_oras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2093/4558/files/watewabux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6139/5102/files/68369046014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6182/8001/files/11717983603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2028/8153/files/90624303857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9432/7974/files/89006505315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4016/files/7952322308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7873/8335/files/21521693855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6941/files/97136426726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0234/files/xejuremoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/93041473572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7304/3622/files/ansiolitico_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9950/3254/files/kedufojazusokunizepuxema.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F6F 5408 bytes
SHA-256: d012541b27b900a11077184a8675c0fe87e8d6ed19e082d34c073b483135f04e
font_01_sfnt_off000091bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91BD 10376 bytes
SHA-256: b74c9006ba0c5f58b5c6b0be221902007a0cf7dd31430875e6283bbfb612f7c5