Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d59a9e7d857aab9…

MALICIOUS

PDF

70.9 KB Created: 2021-02-25 19:40:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 9c646c3851bf1f427dd1627686e2f0dd SHA-1: 3e09355f9266457e682e89e0989c48d243ab27b5 SHA-256: 5d59a9e7d857aab933531a5badf55788742eb3ef35eca7ab4830dfabbdde1fa9
124 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one specifically mentioning 'how to upgrade icloud drive' which redirects to a link farm. This suggests a phishing or scam attempt to direct users to malicious or deceptive content. The ML classifier and ClamAV detection further support its malicious nature, indicating it's likely a phishing lure designed to lead to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6194

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://maypoin.ru/award?keyword=how+to+upgrade+icloud+drive PDF link annotation
    • http://beririka.scienceontheweb.net/63108212967.pdfIn PDF document text
    • http://rbqjkwklnd.xyz/17691255361muxui.pdfIn PDF document text
    • http://fsbsiod.com/jafapira0w0uk.pdfIn PDF document text
    • http://shoop-fl.ru/jixirgtx1x.pdfIn PDF document text
    • http://komaxinatobofe.medianewsonline.com/75207931384.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464314/normal_603068b006355.pdfIn PDF document text
    • http://pemufosapakem.mypressonline.com/organic_chemistry_class_12.pdfIn PDF document text
    • http://pozijuza.scienceontheweb.net/dimitilugifajiwebuvox.pdfIn PDF document text
    • http://nopotaz.medianewsonline.com/zedaka.pdfIn PDF document text
    • http://vsspb.ru/applied_pathophysiology_free40knm.pdfIn PDF document text
    • http://tepugorotewole.medianewsonline.com/4073170776.pdfIn PDF document text
    • http://www.typoland.com/http://www.typoland.com/designers/Lukasz_Dziedzic/CopyrightIn PDF document text
    • http://www.typoland.com/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jozobudesurarab.onlinewebshop.net/does_gamestop_ever_have_coupons.pdfIn PDF document text
    • http://mukanebesiva.atwebpages.com/divipapik.pdfIn PDF document text
    • http://kadoxosin.atwebpages.com/95281179412.pdfIn 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_off0000d90c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD90C 6168 bytes
SHA-256: 50bd8db5ff9a0f03ea6ac0366ab4ff273dceb6ff0c6101ac0faff1fd52ccc92d
font_01_sfnt_off0000e8ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8AE 5176 bytes
SHA-256: 9220574c8555c13fed29a0a7111cad3030eace90c510dcc6f34a76f6748fa7d2
font_02_sfnt_off0000fa73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA73 10272 bytes
SHA-256: b3531d3a0a79e99eee93985657df27f2ca52d9151065d027fa00e79b5a36ffd1