Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d9e6abd0185fc4e…

MALICIOUS

PDF

44.2 KB Created: 2020-10-10 16:10:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: ba501a82534a4e6261dc366f59ed0096 SHA-1: 5cda6d3036d89cf3e18c076f6a701258ebecca90 SHA-256: 9d9e6abd0185fc4e9d1dfdce865789cdf3a914140ec80c0c7fe5a93bd945b859
124 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a link farm designed to obscure the final destination. The primary malicious URL identified is https://ttraff.club/pify?keyword=midsommar+full+movie+free+online+fmovies, which is likely used to distribute malware or lead to phishing pages. The document body, though heavily obfuscated, contains references to movie streaming, suggesting a lure to entice users to click the malicious link.

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://ttraff.club/pify?keyword=midsommar+full+movie+free+online+fmovies In PDF document text
    • https://site-1040129.mozfiles.com/files/1040129/dumopowap.pdfIn PDF document text
    • https://site-1038504.mozfiles.com/files/1038504/nebumefobokigodili.pdfIn PDF document text
    • https://site-1037215.mozfiles.com/files/1037215/86103649942.pdfIn PDF document text
    • https://site-1040424.mozfiles.com/files/1040424/fezonibojopazusu.pdfIn PDF document text
    • https://site-1037848.mozfiles.com/files/1037848/lidazoxuta.pdfIn PDF document text
    • https://site-1040352.mozfiles.com/files/1040352/sutolupavitanuratosod.pdfIn PDF document text
    • https://site-1039925.mozfiles.com/files/1039925/8864218045.pdfIn PDF document text
    • https://site-1038872.mozfiles.com/files/1038872/bupafevubepudogigixusogul.pdfIn PDF document text
    • https://site-1039356.mozfiles.com/files/1039356/22291188009.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee379419-21ff-4787-b4cd-defde2126235/fifinemolevekijeju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83428f64-c0b6-4e9e-9534-ba132cbe06b8/fijorekawinagiwalexokan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64020860-b3d7-440d-9a41-a6653ecf9364/7137958725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6083/9079/files/61629048116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2788/9303/files/download_abyssrium_pole_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7757/8133/files/51981338032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8702/8926/files/bosch_diesel_fuel_injection_pump_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0698/3829/files/looney_tunes_world_of_mayhem_mod_apk_14.0.0.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_off00006d81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D81 5120 bytes
SHA-256: a66c96f3244a8ce5862c5eed10bc9b5d6361368f82cf08cdacd80afba6dd28a5
font_01_sfnt_off00007ee0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE0 10848 bytes
SHA-256: a6ce3bf6edd21d2989996f34a6da47c29efd7028ab9420811507a29bfe2fac78

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