Malicious PDF — malware analysis report

Static analysis result for SHA-256 725b2a9d605b9721…

MALICIOUS

PDF

42.9 KB Created: 2020-08-11 08:29:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aaf5c463f3d226e8d7fa294ad91e05ed SHA-1: 15bf4554ef6225f3f38a6da221295200080dac7d SHA-256: 725b2a9d605b97218cbc6bb0a9ec4d63f46a0963f531171b5bf8116a94bd5145
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document acts as a lure, presenting a fake download for "journal ledger cash book mcqs with answers pdf" to entice users. It utilizes a redirector link, specifically https://ttraff.cc/pify?keyword=journal+ledger+cash+book+mcqs+with+answers+pdf, which points to a large collection of other PDF files hosted on Shopify. This suggests a link farm or SEO poisoning tactic to drive traffic to potentially malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external links reinforces the malicious intent.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=journal+ledger+cash+book+mcqs+with+answers+pdf In PDF document text
    • http://files.prooutboard.com/uploads/1/3/0/7/130775018/9dec4b1be7f0.pdfIn PDF document text
    • http://files.teacherdallas.com/uploads/1/3/1/4/131483955/vesag-sezasadoridinaj.pdfIn PDF document text
    • http://files.kurxma.com/uploads/1/3/0/9/130969402/galiratuweged.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/1/0431/7881/9735/files/13840264808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/xufomimipevelilefepogubow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9408/8616/files/topsail_fishing_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6577/7059/files/wolonokubazajuvepitaliwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4283/1522/files/favatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0065/9100/files/34228603789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/stardew_content_patcher.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4822/9271/files/tuwanoxibisujufaxobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1240/7967/files/32296386341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2905/9994/files/wixapedelevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9150/0961/files/kixonivivojusakafewip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/remafuresolidekapibamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/21235672125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9502/9915/files/xikifolo.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_off00006726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6726 5980 bytes
SHA-256: f005aa520162c1ac5bb4c626368fd44565b157bf0570256dd8432ece5bb6e306
font_01_sfnt_off00007b5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5E 10244 bytes
SHA-256: a5b4199b5b8d83ff4db2753cea9616114a925d1b00af5248151a8155e6af1b08