Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1213dee6b4d70c9…

MALICIOUS

PDF

84.3 KB Created: 2021-03-08 03:16:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 48f400b8d43a92c07b8b1ff47ad16ddd SHA-1: b0cc34334b5f020893c35c87fcd3119deda5a355 SHA-256: b1213dee6b4d70c92a0fcadf4e39c0e75a4b9950e53184b006f1ab21f3c5747d
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains and acting as a link farm, which is a common phishing tactic. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9919

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/wix?keyword=dojima+social+link+2 PDF link annotation
    • https://cdn.sqhk.co/vumajotiwog/iz7jcJJ/76230657786.pdfIn PDF document text
    • https://cdn.sqhk.co/rozamulev/gejiiJd/41359010266.pdfIn PDF document text
    • http://setomomenoku.22web.org/protein_extraction_lab_report.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390383/normal_5fc6cee13b4ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465003/normal_6042d813cf803.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495684/normal_5fcd568ceb83a.pdfIn PDF document text
    • https://cdn.sqhk.co/dedejosewor/Hhdhjhf/1696656566.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456686/normal_5fe7d36b413a7.pdfIn PDF document text
    • https://cdn.sqhk.co/vasozaponem/jbNKOeH/cat_professional_jump_starter_compressor_cj1000cp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417664/normal_601a860c9f61f.pdfIn PDF document text
    • http://pabesubibo.66ghz.com/40580737557.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
    • http://dufakukin.rf.gd/spotify_premium_free_trial_android.pdfIn PDF document text
    • http://bolirazebaf.myartsonline.com/23990354897.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30401479-4b56-4e86-8ad9-8d933a46d470/90607262241.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fd7d281-2b84-4c54-b661-74cceef47f71/what_is_the_synonym_of_progressive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7657c29d-e508-40ad-96bb-66cd421c844f/62508270670.pdfIn PDF document text
    • http://tonavisuma.onlinewebshop.net/h81m-e33_usb_3.0.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34a6e6e0-f392-47b8-adef-1bb99b708885/64987611917.pdfIn PDF document text
    • http://xisajegaxije.epizy.com/dante_inferno_summary_canto_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80a15981-d6df-4f35-a230-c3c44be03b20/80313207049.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ccd20f7-3dec-48e1-859b-dc364e52b558/34973840403.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/where_to_buy_a_timex_watch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bf42ff4-e960-45cf-add8-1838cdee5942/examples_of_literary_devices_in_i_have_a_dream_speech.pdfIn PDF document text
    • http://refusunono.onlinewebshop.net/program_directv_rc66_remote_to_receiver.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/437e1b8c-e4db-443b-9ad6-fc5e6698cd1e/22086214538.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf1b75cb-38e2-497c-99d4-38b0169c0b22/vojowemeziku.pdfIn PDF document text
    • http://roragopijejem.epizy.com/homer_the_odyssey_summary_in_hindi.pdfIn PDF document text
    • http://nixomirorubu.myartsonline.com/call_of_duty_modern_warfare_beta_dates.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC44 4712 bytes
SHA-256: c19cda89bdb56e04507ade8213b0caeee5422e916832ef76514ae5c4aa3f021b
font_01_sfnt_off0000fc24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC24 10332 bytes
SHA-256: fa7ac4941dda926589786405262fd40c04cc514e7822be50b5d2bd33a5292e21
font_02_sfnt_off00011f8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F8D 16240 bytes
SHA-256: 281214d1119d96f3a8ebe36682ff3c94e77595198e0ed7d049f81fad77dcdf11
font_03_sfnt_off000134e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x134E6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333