Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffdfee6a0b8e6db5…

MALICIOUS

PDF

44.4 KB Created: 2020-08-11 01:29:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0043af587436b3396b1677d07f5c62dc SHA-1: b90451677c8e047f0e3ef69a1a1715ea0071bb4e SHA-256: ffdfee6a0b8e6db54f73277e5f79445e17725cca5c1435c1244ef415d8b63ca2
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.ru/pify?keyword=bocio+toxico+multinodular+pdf'. This suggests the document is designed to lure users to malicious infrastructure, likely for further exploitation or phishing. The ML classifier also strongly indicated maliciousness.

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=bocio+toxico+multinodular+pdf In PDF document text
    • http://files.fcsiservices.com/uploads/1/3/1/4/131438570/5970685.pdfIn PDF document text
    • http://files.samanthasnyderart.com/uploads/1/3/0/7/130775221/mejixijorape.pdfIn PDF document text
    • http://xopenoxe.victoriawejko.com/uploads/1/3/1/1/131164239/relaguteva.pdfIn PDF document text
    • http://miwebixid.aylmerunitedchurch.ca/uploads/1/3/1/6/131636725/gakanofogaser.pdfIn PDF document text
    • http://files.mybestieswholesale.com/uploads/1/3/2/6/132681579/kovivevosokin-lorop-jitanurebite.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/1/0436/2308/8290/files/xabataza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/55022759656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/xidizifap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0402/5243/files/what_does_inb4_mean.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0645/2131/files/azusa_street_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/matukixunabewiwume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70277109097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9151/6826/files/gayatri_mantra_meaning_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5428/4450/files/komotatebodujafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5425/1670/files/21790449598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2784/0669/files/gapagoxoferexovujine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1234/1416/files/nijajajavotufudexivopu.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_off000062e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E2 5004 bytes
SHA-256: 1c43e91a010ebf77fc12ab499753aab15b1799fd047d39db004c775612fb8d2f
font_01_sfnt_off000073bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73BF 10244 bytes
SHA-256: 4d124421fe37ec2c4982168a970153b21ce5380132a5dbedf0f0c576eb660fa6
font_02_sfnt_off0000962d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x962D 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34