Malicious PDF — malware analysis report

Static analysis result for SHA-256 94119eea45d647ee…

MALICIOUS

PDF

41.5 KB Created: 2020-10-12 10:48:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 15add36893a9e984a2b3c0ac7ce69bc0 SHA-1: 5bdf08c3eda4d704d2754b4b7acd67406af0a78f SHA-256: 94119eea45d647ee41b11e3133231940d48a6181b80169fe88b03e2d58faf04f
124 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at `https://gettraff.ru/strik?keyword=conditional+sentences+type+3+worksheet`. The document body, though heavily obfuscated, also contains embedded URLs. The presence of these links and the ML classifier's high confidence score indicate a malicious intent to redirect the user to potentially harmful content. The document is likely a lure for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gettraff.ru/strik?keyword=conditional+sentences+type+3+worksheet In PDF document text
    • https://site-1043445.mozfiles.com/files/1043445/63981785892.pdfIn PDF document text
    • https://site-1037907.mozfiles.com/files/1037907/12206757507.pdfIn PDF document text
    • https://site-1041862.mozfiles.com/files/1041862/26399740711.pdfIn PDF document text
    • https://site-1039878.mozfiles.com/files/1039878/53888814438.pdfIn PDF document text
    • https://site-1048536.mozfiles.com/files/1048536/42575195525.pdfIn PDF document text
    • https://site-1048552.mozfiles.com/files/1048552/27446802659.pdfIn PDF document text
    • https://site-1043249.mozfiles.com/files/1043249/14019180180.pdfIn PDF document text
    • https://site-1041405.mozfiles.com/files/1041405/livirulus.pdfIn PDF document text
    • https://site-1036939.mozfiles.com/files/1036939/vifolaxovuwexoripadoxak.pdfIn PDF document text
    • https://site-1048486.mozfiles.com/files/1048486/22583403055.pdfIn PDF document text
    • https://site-1039725.mozfiles.com/files/1039725/zukotapufulaguwusoj.pdfIn PDF document text
    • https://site-1038526.mozfiles.com/files/1038526/143854596.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/1/0434/5312/0679/files/97548367725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7708/4340/files/talitufetokoguzenolopezik.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_off000063d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D1 5488 bytes
SHA-256: 403baa60ae304b86455ba7e89acf255165f93928cb40abe68851074ec44f657a
font_01_sfnt_off0000768d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x768D 10140 bytes
SHA-256: a07a20bed0aeddc74df34556c0bbd070fe0a6fe5e025a6b7b41a21cacec3de34

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