Malicious PDF — malware analysis report

Static analysis result for SHA-256 d993decc7fcc181f…

MALICIOUS

PDF

70.9 KB Created: 2021-02-18 07:40:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 6a2ff42ea32f9aa5978f4b947d00e18d SHA-1: 36cf8f96a316591ad5dd435ced805887ce9429e1 SHA-256: d993decc7fcc181f0d8bbf42496e23326e9fc4c90793b8ce224bffd4a3b2fb37
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, with one prominent URL, 'https://jottigo.ru/strik?utm_term=padi+open+water+certification+florida', appearing to be a lure for users interested in PADI certification. The presence of multiple disposable hosting links and UTM parameters suggests a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/strik?utm_term=padi+open+water+certification+florida PDF link annotation
    • https://cdn.sqhk.co/xovujiroveg/pwthchd/ufc_fight_tonight_costa.pdfIn PDF document text
    • http://fiselijuduguge.iblogger.org/26523124217.pdfIn PDF document text
    • https://cdn.sqhk.co/nemovofa/hbjcULo/terranova_pizza_dough_calories.pdfIn PDF document text
    • https://cdn.sqhk.co/posukomokufi/jjtjagj/q_twins_ft_tira_hamba_music.pdfIn PDF document text
    • https://cdn.sqhk.co/xiponamoribo/jijeahg/formula_1_qualifying_results_belgium.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fepapemifen.epizy.com/miken.pdfIn PDF document text
    • http://dazidotidipo.rf.gd/luwem.pdfIn PDF document text
    • http://zaxukesaludu.epizy.com/ipad_mini_5_size_dimensions.pdfIn PDF document text
    • http://dimegebewode.epizy.com/funajaji.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/sinhala_baila_nonstop_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/corporate_folder_template_free.pdfIn PDF document text
    • http://bejuxufuvojofa.rf.gd/17852267095.pdfIn PDF document text
    • http://xilijimerufosat.rf.gd/94145954699.pdfIn PDF document text
    • http://bufiziwo.rf.gd/95477384694.pdfIn PDF document text
    • http://jofesosozofoso.epizy.com/77454938624.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/hangout_for_android_version_2._3.pdfIn PDF document text
    • http://guxozuzemonixe.epizy.com/tepiwi.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/21566494830.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_off0000d854.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD854 5064 bytes
SHA-256: cd44655c407daa79fbe19c2917aceaa090525ca2764e3376ff54a71d210fb1d3
font_01_sfnt_off0000e9b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B6 10688 bytes
SHA-256: f4863eca5bb66ce1d9bac296c040044e3780aa3762287d648f6a9ad104b8b99d

Open this report in the interactive analyzer, or submit your own file for analysis.