Malicious PDF — malware analysis report

Static analysis result for SHA-256 95dfc7408516e841…

MALICIOUS

PDF

95.4 KB Created: 2021-03-30 07:56:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4e5c38e65361c09f0e3089f10fdbc71c SHA-1: dc6f4aff4610330861aa488d56335a7165ff481a SHA-256: 95dfc7408516e8414d9cf55275b0e4e8bee10940e381bfda11d4053e88dafba9
66 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are hosted on disposable domains and appear to be part of a link farm. The primary URL, zajinet.ru, is associated with a search query for cracked software, indicating a lure to potentially malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 4

  • 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
  • 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://zajinet.ru/wix?keyword=spotify+premium+cracked+apk+no+root PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4470839/normal_60624ca83769d.pdfIn PDF document text
    • https://gikotaduxig.weebly.com/uploads/1/3/1/4/131454052/901620.pdfIn PDF document text
    • http://gratoramaa.space/madifivesafibojabalame6gv5.pdfIn PDF document text
    • http://fudasoba.iblogger.org/j_prince_net_worth_2018_forbes.pdfIn PDF document text
    • https://xokuriwuboteze.weebly.com/uploads/1/3/4/6/134663839/lonexesir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421061/normal_601ce87d3aed0.pdfIn PDF document text
    • https://xekekulok.weebly.com/uploads/1/3/1/8/131857590/8920288.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370533/normal_6016254dd550a.pdfIn PDF document text
    • http://ladyso.ru/all_of_me_piano_guys_sheet_musictw0z8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421472/normal_6037f4d2ae4f1.pdfIn PDF document text
    • https://dewuvibemezifo.weebly.com/uploads/1/3/4/7/134763410/femonupanevaveri.pdfIn PDF document text
    • http://bapupozizevose.22web.org/paypal_payment_receipt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490366/normal_602402ca69a59.pdfIn PDF document text
    • http://lighterusb24.site/wewipeputoxabulaneneq2vm.pdfIn PDF document text
    • https://galixasuja.weebly.com/uploads/1/3/4/5/134518214/8853865.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/a5b9a2bf-5ba2-4d65-afab-87e44c9ce633/nupizine.pdfIn PDF document text
    • http://sukepavudopuje.epizy.com/ar_15_30rd_magazine_spring.pdfIn PDF document text
    • http://kozuwuwupoxofi.rf.gd/31903310652.pdfIn PDF document text
    • http://zowugatekur.rf.gd/48857201678.pdfIn PDF document text
    • http://wuduzinemaz.rf.gd/christmas_drinks_party_invite_template.pdfIn PDF document text
    • http://mosepurone.epizy.com/hulu_on_sony_blu_ray_player.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a6f3b5a-9a3a-4a5d-bd3f-59f0e59d952f/what_is_knowledge_economy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f54aea7c-d191-45cb-8765-ab36b3353d55/public_administration_degree_national_university.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010a0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A0B 5244 bytes
SHA-256: 920c0ca379a9740093ab29495825eb3fc4e77af43cb331fb7656a1c799ffe188
font_01_sfnt_off00011bc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BC5 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off00012453.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12453 11460 bytes
SHA-256: ac062a81eb8ca45c0e9280dfbb3f99ef819709678e39b0d675a31a4935c4f6eb
font_03_sfnt_off00014b88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B88 16312 bytes
SHA-256: 531e37f64a2e7dc3bfb257675d9e6c644c7b1597f33ba9a969cd005a7ed65660
font_04_sfnt_off00016113.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16113 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f