Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca60c412758118a5…

MALICIOUS

PDF

41.8 KB Created: 2020-10-06 19:03:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04d46026da8083dff6c9257b1cb12e76 SHA-1: e440be4df979aaf9281336787714fc4354e3b162 SHA-256: ca60c412758118a54147282d426773270938c24b8f1e5f68c56d1e5b2eb5394b
144 Risk Score

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 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=ltspice+tube+rectifier+model In PDF document text
    • http://xopup.sequimbeacon.org/uploads/1/3/2/6/132681293/mivusunadepaz_pojalokevowufo.pdfIn PDF document text
    • http://files.themenuboard.org/uploads/1/3/1/0/131071167/teparad.pdfIn PDF document text
    • http://vemotoj.furryzines.com/uploads/1/3/0/8/130813533/6eaed65ca61fc.pdfIn PDF document text
    • http://navatuv.pleasantviewbc.net/uploads/1/3/0/7/130775198/1dec52.pdfIn PDF document text
    • https://site-1038442.mozfiles.com/files/1038442/mafemavaxixubukezobif.pdfIn PDF document text
    • https://site-1036971.mozfiles.com/files/1036971/78523400131.pdfIn PDF document text
    • https://site-1039436.mozfiles.com/files/1039436/35183454103.pdfIn PDF document text
    • https://site-1039999.mozfiles.com/files/1039999/96901279344.pdfIn PDF document text
    • https://site-1036995.mozfiles.com/files/1036995/65149794555.pdfIn PDF document text
    • https://site-1038908.mozfiles.com/files/1038908/robuponu.pdfIn PDF document text
    • https://site-1037829.mozfiles.com/files/1037829/zovuloxijawixesafemapijun.pdfIn PDF document text
    • https://site-1039201.mozfiles.com/files/1039201/69258248541.pdfIn PDF document text
    • https://site-1036935.mozfiles.com/files/1036935/86602935572.pdfIn PDF document text
    • http://valutedi.idyllicvista.com/uploads/1/3/0/7/130775593/715697.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006515.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006515.bin)
    • https://uploads.strikinglycdn.com/files/4caabed6-3315-4162-b572-dd56d0f6c749/gelaganejobojezukerar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7653a79b-4521-4630-95b0-f9eed88723b7/31918772007.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a68cd3a-0e06-4b92-a0dd-0eb6317fb352/tefebesusoretiguladunive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f39af1b6-d296-4417-a67b-aeaf084d4bd5/bobakavitijakebanupag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09fa3b6c-d719-496e-8f5d-dba44e5409f4/46029158938.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 extracted file (font_00_sfnt_off00006515.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6515 5172 bytes
SHA-256: 376ecb47d07335f45e59cda2dde8566b1bbdc8e99b0487757ccadddc75a3ec82
font_01_sfnt_off00007692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7692 10412 bytes
SHA-256: e943edc73086729b75263dce9dc39f5c7b64042c7d299da2f97c8d791e32e1fd