Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc87ebb7461bee86…

MALICIOUS

PDF

43.4 KB Created: 2020-08-09 19:58:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89386b8f98c1f8b8c94aa5222cf47424 SHA-1: cf7ee389d56ccd65f4bdd4ce1c7f09e8154b695c SHA-256: fc87ebb7461bee864fb6a2e48603335f353d439a3c3c62428f9b21209b326a89
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded URLs, with one identified as a known malicious redirector. The document body, though partially corrupted, contains text referencing a 'menu pdf' and the malicious URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the presence of a link to malicious infrastructure, and PDF_SEO_LINK_FARM indicates a large number of external links, suggesting a link farm or distribution network. The primary malicious URL is https://ttraff.ru/pify?keyword=freshly+squeezed+menu+pdf.

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.ru/pify?keyword=freshly+squeezed+menu+pdf In PDF document text
    • http://pukij.oldfieldcellars.com.au/uploads/1/3/2/6/132681670/995b2731ab.pdfIn PDF document text
    • http://files.noreencoupenpleinair.com/uploads/1/3/2/8/132814303/9157ecf3.pdfIn PDF document text
    • http://files.lenkaflaherty.com/uploads/1/3/1/6/131607163/9472500.pdfIn PDF document text
    • http://files.eclipsegamingsupply.com/uploads/1/3/2/6/132681976/3048515.pdfIn PDF document text
    • http://files.cn.lglministry.org/uploads/1/3/2/3/132303230/towopoburuluwi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0448/8301/7895/files/altar_de_muertos_prehispanico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9482/7415/files/xuredoduf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5817/3854/files/papabugokabuloniboxevupig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3314/8062/files/50583110254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5205/7244/files/great_teacher_onizuka_episode_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1409/2960/files/google_drive_symlink.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6895/4526/files/16255814701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5095/6960/files/how_to_find_sd_card_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8027/7406/files/7070447526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2433/3472/files/add_github_repository_to_local.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/46892021532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3614/5814/files/7495465524.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46C0 4948 bytes
SHA-256: cf1fd1ff7349b378394c35b6aa36b8e3f08fc8508ef6cdca0d6917b192780bf5
font_01_sfnt_off0000575e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x575E 8568 bytes
SHA-256: 6959a9e6b586bb22c4bd4476aa4192d2e8e1b1d39447c925e06b7825eb471e68
font_02_sfnt_off00007326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7326 9112 bytes
SHA-256: 26e8a02630713cfc939f97de146fab6389ef7aa34804feed580bbb325ccb9796
font_03_sfnt_off00009232.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9232 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3