Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bbea1cc321ae2f4…

MALICIOUS

PDF

79.4 KB Created: 2021-02-09 11:15:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: d25a30d0cab7e771a73ff4043ee1e317 SHA-1: f2c42386ed621f08eca47c3ed6a603e8f287db1d SHA-256: 3bbea1cc321ae2f49ba81ed2765bf61aac2d5678aec4dc5df8878b14ad696f67
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or SEO spam. While no scripts were explicitly extracted, the presence of numerous external URLs points towards an attempt to redirect users to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/aws?utm_term=sheets+of+clear+flexible+plastic PDF link annotation
    • https://wexarasi.weebly.com/uploads/1/3/4/3/134351888/nesisopasuja.pdfIn PDF document text
    • http://appletopshop.ru/lekobekafbutvd.pdfIn PDF document text
    • http://connexion-amelii.xyz/94181294145zqfi5.pdfIn PDF document text
    • http://shlifovka-pol.website/bold_italic_font_freeuyfp9.pdfIn PDF document text
    • https://cdn.sqhk.co/ketofebem/iigfhh5/salunijugiganijomusom.pdfIn PDF document text
    • https://lalidusuferub.weebly.com/uploads/1/3/4/4/134440540/df12f23b72073.pdfIn PDF document text
    • https://cdn.sqhk.co/noxuwitide/PDgjLgf/vewezonaguluf.pdfIn PDF document text
    • http://jushq.club/convertidor_de_grados_celsius_a_fahrvlpqh.pdfIn PDF document text
    • https://cdn.sqhk.co/japexexuko/bjdibjf/17586961500.pdfIn PDF document text
    • https://mogudigadoto.weebly.com/uploads/1/3/2/6/132695399/vezevixev-limopeza-karasalelo.pdfIn PDF document text
    • http://ekzo-fruit.ru/kovifbt4hx.pdfIn PDF document text
    • https://lobusuzagoti.weebly.com/uploads/1/3/4/4/134470260/49bb5af0ea78.pdfIn PDF document text
    • https://cdn.sqhk.co/kawinojos/jgjii2l/screen_recorder_free_windows_10_no_watermark.pdfIn PDF document text
    • https://zavisedifigi.weebly.com/uploads/1/3/4/3/134316550/2127287.pdfIn PDF document text
    • http://zabavnyi-slon.ru/home_assistant_template_sensor_icon_colort7prk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bejideba/shining_force_2_promotion_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/78715974871.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/10024630428.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/18266382727.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/good_food_guide_melbourne_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/43142806221.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/55526774769.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E9 5416 bytes
SHA-256: a90f816e64ca1bcf852504783725227e462dd724f3f5ee61f3da45575650f3a1
font_01_sfnt_off0000f551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF551 10808 bytes
SHA-256: 49b1f2eaafdcbe8c9a8e6be4aee856f65af987ef75b80640eab0a01dbbbf9bb0
font_02_sfnt_off00011a8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A8E 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6

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