Malicious PDF — malware analysis report

Static analysis result for SHA-256 baaef17966421fb8…

MALICIOUS

PDF

78.9 KB Created: 2021-04-05 07:57:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3497e2ab337228994672204e43c10fb6 SHA-1: de7d9ce58c71a0dd7ec5e3a16ff60c6f54f2a20e SHA-256: baaef17966421fb8ff9525ae9f119d4ae75e4fe3e6dca89e44884b04362da539
126 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. It contains numerous embedded URLs, with one pointing to 'golowaki.ru' which is suspicious. The document body, though heavily obfuscated, suggests a lure related to a 'school coordinator job description'. The presence of embedded URLs and the nature of the detection suggest this PDF is designed to lead users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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
  • 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://golowaki.ru/award?keyword=school+coordinator+job+description+pdf PDF link annotation
    • http://delaem-sami.online/learn_javascript_visually_downloadbric1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489428/normal_60383ec63f803.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485321/normal_5ff8c9a3df503.pdfIn PDF document text
    • http://vamoktin.ru/digixumowuwesekonesumepou6hr4.pdfIn PDF document text
    • http://xawinewilapirog.iblogger.org/air_force_x_group_previous_year_question_paper_download.pdfIn PDF document text
    • http://hurricane1.space/kabaddi_score_sheet_hdr6078.pdfIn PDF document text
    • http://maturibcgj.space/880389895389hyva.pdfIn PDF document text
    • http://fuvagezilavez.mygamesonline.org/1565209776.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413583/normal_604fc9747647b.pdfIn PDF document text
    • http://nekuwagibajese.getenjoyment.net/singular_and_plural_nouns_list.pdfIn PDF document text
    • http://wojesukuzak.mygamesonline.org/61358048030.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/6f73d14d-35b0-40b9-b9e6-71cf53e8f6f3/49274859838.pdfIn PDF document text
    • https://df9240ce-57b4-430e-a582-521170ca5232.filesusr.com/ugd/10b03a_1266927e4260449c8a47ea23ea8c39dc.pdf?index=trueIn PDF document text
    • https://d1159ab4-cbf5-42eb-897b-83a5e94cd7da.filesusr.com/ugd/536122_e6176b782f48492fa74d7d7a60fa7c56.pdf?index=trueIn PDF document text
    • http://sinijukiju.epizy.com/devanok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c1ebfec-0bf3-41f0-9ce9-e78fd7a8d1e6/realidades_2_capitulo_1a_practice_workbook_1a-2_answers.pdfIn PDF document text
    • http://bejelopelavisi.epizy.com/ahsanul_bayan_roman_urdu.pdfIn PDF document text
    • https://ae8c1479-5121-4009-b0ed-8259dbb1205b.filesusr.com/ugd/0aff45_55113f2376cd446689c0bddf5fd26daa.pdf?index=trueIn PDF document text
    • https://60f6da8c-824c-4163-aae9-6195f2ac7ed4.filesusr.com/ugd/7f16bd_2e83afc71e6543e0b09240af4f934358.pdf?index=trueIn PDF document text
    • http://wavexijazibivat.myartsonline.com/apothecary_system.pdfIn PDF document text
    • http://zokaramizixa.atwebpages.com/coreldraw_x8_user_manual.pdfIn PDF document text
    • https://1fc3e790-19e1-43b7-bae7-d09a953f51fe.filesusr.com/ugd/2c608b_73a215a86bc14bd285942eed4fa785f3.pdf?index=trueIn 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_off0000f743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF743 5560 bytes
SHA-256: 6dc97b5953777c5fc6e44d8a6abb325fae3e906896862294bb899bc1c3e652fc
font_01_sfnt_off00010a27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A27 10512 bytes
SHA-256: f95207e570a3a2a55949a34618c6d7fd11352c6adb91b0bd10ebda07355ee038