Malicious PDF — malware analysis report

Static analysis result for SHA-256 789c771f44fa527a…

MALICIOUS

PDF

44.4 KB Created: 2020-08-08 00:17:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: acb0c9ee96fc51ca782fddf69599bc64 SHA-1: dc65906fc8894c0ecf9dbf95420a503e6b33e7d2 SHA-256: 789c771f44fa527a236b52c42e2a8c3197eaf93f32ba417cf8ed85435f567bc5
194 Risk Score

Malware Insights

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

This PDF document contains multiple links to a redirector service, which in turn points to various PDF files hosted on Shopify and other domains. The primary redirector URL is https://ttraff.ru/pify?keyword=boiler+feed+water+pump+manual+pdf, which is flagged as malicious. The document's structure and the presence of numerous links suggest an attempt to create a link farm or phish users by disguising malicious links as legitimate downloads. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=boiler+feed+water+pump+manual+pdf In PDF document text
    • http://files.deshlerchamber.org/uploads/1/3/1/4/131438641/zedetuzikobapiwaxo.pdfIn PDF document text
    • http://files.resortattractionsllc.com/uploads/1/3/0/8/130814124/lisoliw-tapix-vuxutag-dajam.pdfIn PDF document text
    • http://files.gerrycooneysba.com/uploads/1/3/2/6/132682585/rakuvafubo_kotufafaxex_fofesezode_xavudalirebot.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/1/0430/4030/9402/files/baseli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5596/4569/files/73714253400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5732/2903/files/chuck_lorre_vanity_cards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0490/files/60453197729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8909/files/teluluritevuzubib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1801/9235/files/computer_hardware_and_networking_notes_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9055/8622/files/vikulabebokipixaxesotuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2817/5255/files/1031884273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0262/5178/files/39391620587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6467/8817/files/37563486694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6278/8245/files/35753438020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8890/3325/files/gogutojemigizufexisoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1872/9110/files/sir_arthur_conan_doyle_short_stories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9017/3349/files/sifomerimijozem.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A6 5032 bytes
SHA-256: 90e0a714013b31c32888b0454d927b19b94f3c28b82e50a12d4fc0be6bd86747
font_01_sfnt_off000074b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B4 9908 bytes
SHA-256: 1725ee51b7b3fbc363fce30350adbcaed6709bc8cae12aa04856df8b03a835c2
font_02_sfnt_off00009695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9695 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34