Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ba3bf006bd2a46f…

MALICIOUS

PDF

73.9 KB Created: 2021-03-12 20:43:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9cc0b938981fec2d121d97a58c59ed38 SHA-1: bc35d3adc8734a9128141347d56be4c11ff6fc7e SHA-256: 4ba3bf006bd2a46f19988788dd162517ec46d439237484b19b8690e601262da5
66 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to disposable domains and link farms, indicating a malicious intent to redirect users to potentially harmful sites. The ML classifier strongly flagged this PDF as malicious, and the presence of many external URIs supports this assessment. No scripts were extracted, but the document's structure and embedded links suggest it's designed to lead users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lozipotod.ru/aws?utm_term=las+notas+del+titanic+en+flauta PDF link annotation
    • http://jemulobapamiwu.mywebcommunity.org/gorafezofugikurabebevipok.pdfIn PDF document text
    • http://nigma24invest.online/manual_gps_essentials_androidvazgv.pdfIn PDF document text
    • https://fujovufizopi.weebly.com/uploads/1/3/2/7/132710671/9542720.pdfIn PDF document text
    • https://cdn.sqhk.co/marezotije/chahdhb/pupps_hives_pregnancy.pdfIn PDF document text
    • http://glawerry.online/agencias_y_sucursalesv18mw.pdfIn PDF document text
    • https://sawisede.weebly.com/uploads/1/3/2/6/132681865/bavuzosil.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxukulalodi/0ocdX6w/crashing_season_3_episode_4_review.pdfIn PDF document text
    • http://punejew.mygamesonline.org/how_does_drinkwell_pet_fountain_work.pdfIn PDF document text
    • https://tugofemupufere.weebly.com/uploads/1/3/4/5/134584107/dozex-fomanur.pdfIn PDF document text
    • http://spainwow.pro/nuziwezaxeduwudebukelora83yvb.pdfIn PDF document text
    • https://cdn.sqhk.co/zonelatu/siijbje/phone_number_for_closest_t-_mobile_store.pdfIn PDF document text
    • http://nunopasatipimav.medianewsonline.com/natevipebukotesetunowaf.pdfIn PDF document text
    • http://vengriya.space/gb_whatsapp_update_2019_maywzngk.pdfIn PDF document text
    • http://gobitujesan.scienceontheweb.net/4534355737.pdfIn PDF document text
    • http://bogplaktnc.fun/what_time_does_black_friday_start_at_walmartvl97s.pdfIn PDF document text
    • http://rrrrkkkkk.space/esl_speaking_board_gamespskzd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://boraxatisota.rf.gd/62818494037.pdfIn PDF document text
    • http://vexukaxazixaxet.epizy.com/80703852360.pdfIn PDF document text
    • http://wesawujejo.epizy.com/faganozinaroxifumo.pdfIn PDF document text
    • http://fefiraxubuviwep.epizy.com/minecraft_dinosaur_mod_1._8_9.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_off0000e30f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE30F 4860 bytes
SHA-256: b93ae7a846f76f2c8a23f9408cd2bc061e1ed634a495cdee7da07dbef0f3aa35
font_01_sfnt_off0000f3b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B0 11484 bytes
SHA-256: df44e3b51b700f846c8aa80ee7e6ae32aaae01b62afc767e8abf59c2bc683efc

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