Malicious PDF — malware analysis report

Static analysis result for SHA-256 179455aaf1ed3792…

MALICIOUS

PDF

46.5 KB Created: 2020-08-16 00:47:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 82830f12c9191dc5667ac0d319b65a94 SHA-1: df0eeed4f74b2d0f8e6341a6c50102b605f9a97a SHA-256: 179455aaf1ed3792cf85bb1f08727032946b122b1b541762a6fcbcb12bf7c5c1
170 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a link farm designed for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, 'https://ttraff.ru/pify?keyword=doraemon+cartoon++free+mp4', which is presented as a download lure. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=doraemon+cartoon++free+mp4 In PDF document text
    • http://files.haltnorth.com/uploads/1/3/0/7/130739831/3753369.pdfIn PDF document text
    • http://files.manningdesignla.com/uploads/1/3/1/0/131070289/5106171.pdfIn PDF document text
    • http://nafofa.goodcompany.works/uploads/1/3/0/8/130874359/6184997.pdfIn PDF document text
    • http://files.mattduffybaseball.com/uploads/1/3/1/3/131380786/2b6f90e42.pdfIn PDF document text
    • http://files.dianegravel.com/uploads/1/3/1/6/131636745/nadavigazinanafe.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/1/0429/7110/3395/files/vexafaviguxaxagatojigip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4903/1592/files/geledemewizoponotoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7141/3151/files/causation_and_correlation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9721/7440/files/angry_birds_transformers_telepods_qr_codes_hack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6757/files/kirevezogifetikuxepijire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2219/5608/files/xubebatitudixuvanar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/79135321733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/gafabinapuwul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/vepufunopazuzef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7843/8302/files/jenaxagagedigarule.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6026 5036 bytes
SHA-256: 43592d114724e210f7963d7e6c29f81bf16b7c9c4af3541aabf3ca7640203e68
font_01_sfnt_off00007137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7137 10716 bytes
SHA-256: 141ef9183eeb404e2f48c94727f204f0d120453d126c91061de0ab876de78362
font_02_sfnt_off0000955c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x955C 16352 bytes
SHA-256: 9cb0650af5bdb2e8593988a361a40fe1030b61ea25d8fce7fab67310e0b1f9a7