Malicious PDF — malware analysis report

Static analysis result for SHA-256 98d62f8c21aa3c8d…

MALICIOUS

PDF

77.6 KB Created: 2021-02-28 14:42:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: c34ee9200039778156322618d8dcae2f SHA-1: 80211d8d948430721089382ed1e94109d7452bd5 SHA-256: 98d62f8c21aa3c8dae0e7555c0e155abcc416a06e537168591c605d8ef979e3a
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a malicious domain, disguised with a seemingly benign title. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of an external URI points to a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://fokemale.ru/strik?utm_term=how+to+build+a+basic+wine+rack PDF link annotation
    • http://duxeluwezix.iblogger.org/special_26_film_song_pagalworld.pdfIn PDF document text
    • http://xigesoti.iblogger.org/2004_dodge_ram_1500_3.7_towing_capacity.pdfIn PDF document text
    • http://fozakewugumomig.22web.org/how_to_activate_timex_indiglo.pdfIn PDF document text
    • https://norofuzalugegok.weebly.com/uploads/1/3/4/8/134882219/225b76b7580fa.pdfIn PDF document text
    • http://cozyplacefor.rest/jajegipatasexabowokoraoub8e.pdfIn PDF document text
    • https://wirosumarot.weebly.com/uploads/1/3/1/3/131398493/maman_gojaxo_tukujenifojaza.pdfIn PDF document text
    • http://jijimaxugixu.22web.org/tefututulevi.pdfIn PDF document text
    • https://zufiwesikewini.weebly.com/uploads/1/3/3/9/133997230/lamowoxija.pdfIn PDF document text
    • http://podarokinsta.site/chargepoint_inc_ipotng14.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/gonafoziguwewe/fullmetal_alchemist_game_free_for_android.pdfIn PDF document text
    • http://xigesema.epizy.com/happy_birthday_to_you_ringtone_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/72335506287.pdfIn PDF document text
    • http://renureva.epizy.com/glioblastoma_multiforme_5_year_survival.pdfIn PDF document text
    • http://sijarobe.rf.gd/stardew_valley_bundle_guide_by_season.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/bugelataxupofamipifu.pdfIn PDF document text
    • http://tumurubulofomam.rf.gd/69621910411.pdfIn PDF document text
    • http://jejomozukiro.rf.gd/xesinibivaduruleriwi.pdfIn PDF document text
    • http://nanomunem.epizy.com/tozipovifukaja.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/girenizeputufasoweronazon.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_off0000f10b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF10B 5188 bytes
SHA-256: 3d44887fa4d57beb6b75a550a29b5563c6bfa5646776ee1e49e7ab66aa2d9115
font_01_sfnt_off000102ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102CA 11224 bytes
SHA-256: 51dd21529c006744348344302676ab191b6c28e91107ba3677c29c4be0bdf3ab

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