Malicious PDF — malware analysis report

Static analysis result for SHA-256 44542e2e2246901b…

MALICIOUS

PDF

36.9 KB Created: 2020-11-04 07:42:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: c0720eeaff5a253041d97265f1026e60 SHA-1: bc9831687e8f2d8661c96887d0bd5a719b954db7 SHA-256: 44542e2e2246901b786dda894781b662bae5db35f21a952161936630a403e23e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.002 Malicious Link

This PDF document impersonates Yahoo to trick users into resetting their passwords, directing them to a malicious redirector. The embedded link, 'https://cctraff.ru/wb?keyword=how%20to%20reset%20yahoo%20password%20on%20iphone', is a known malicious redirector. The document's content and the presence of malicious links strongly indicate a credential phishing attempt.

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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://tupuzenetuz.weebly.com/uploads/1/3/4/5/134519332/06043e01ed435b.pdf.
  • 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://cctraff.ru/wb?keyword=how%20to%20reset%20yahoo%20password%20on%20iphone In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365620/normal_5f87bd5910248.pdfIn PDF document text
    • https://tupuzenetuz.weebly.com/uploads/1/3/4/5/134519332/06043e01ed435b.pdfIn PDF document text
    • https://tebokatesax.weebly.com/uploads/1/3/3/9/133999418/rozunelewuwuvuwalat.pdfIn PDF document text
    • https://deriwofapavuz.weebly.com/uploads/1/3/4/3/134311795/4612817.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367940/normal_5f918f3eee41c.pdfIn PDF document text
    • https://xusawoji.weebly.com/uploads/1/3/0/7/130739635/ffef58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403951/normal_5f956fb7c13b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402951/normal_5f96dfa1c0a3e.pdfIn PDF document text
    • https://mefemanodi.weebly.com/uploads/1/3/1/4/131454269/4f622.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407102/normal_5f9e87dd6a3a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375522/normal_5f8d7b9e65f6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415537/normal_5f9f417a89ad1.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/2ea2e55e-7efa-4869-b410-d8f511635e7c/nodogufomeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7d52097-3a4f-4669-9be3-432e2bf5196c/lodipa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab8eeec5-e987-482b-868b-e9b3b97aa6df/pisd_school_calendar_2019_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f9c6051-a15c-45eb-ab70-0d60528ce7d4/bususafedexu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8eb0ef9-5edb-4f4c-be19-890c0363bf58/gotetaparevujadotik.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_off000053fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53FC 5172 bytes
SHA-256: 135bf758da6f0022be704567692d165cff604da7d8bb09d9c42e0d7aea127820
font_01_sfnt_off0000659e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x659E 9660 bytes
SHA-256: 09bb5e08101c26712948853c62bef3005ab55b23c581471870ddddfc56c34bc7

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