Malicious PDF — malware analysis report

Static analysis result for SHA-256 c900cff59f3cf3e7…

MALICIOUS

PDF

77.6 KB Created: 2021-05-13 17:51:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6699f49a7c4786ac214d507321db77a9 SHA-1: 060921c74075cbd922a7777fd59a2e2114b95b89 SHA-256: c900cff59f3cf3e7e66e57ce8a367d0f88c213b6388a8ffcfef02ce33774f35c
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to renting a Ford Mustang, suggesting a lure to trick the user into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://ponafet.ru/strik?utm_term=rent+ford+mustang+convertible+las+vegas PDF link annotation
    • http://kivexuvuripamo.iblogger.org/fitbit_charge_hr_2_setup_instructions.pdfIn PDF document text
    • http://sbrf.link/cruiser_vintage_skate5hw0r.pdfIn PDF document text
    • http://kugowuvidaneno.iblogger.org/nepamaguwufuxefamefokibak.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/hiqgUgc/beyblade_burst_app_mod_apk_6._3._0.pdfIn PDF document text
    • https://cdn.sqhk.co/tonufipu/dhafujb/laser_cut_picture_frame_template.pdfIn PDF document text
    • http://fisuwodep.22web.org/5511112829.pdfIn PDF document text
    • https://cdn.sqhk.co/pubodegosog/gvajiSe/vuwugikeg.pdfIn PDF document text
    • http://ruszaimclub.ru/seguputujeninerurolunoxee3593.pdfIn PDF document text
    • https://cdn.sqhk.co/bopelara/kyijf3h/98172722198.pdfIn PDF document text
    • http://duwadomet.22web.org/vebegakid.pdfIn PDF document text
    • http://werewov.22web.org/gojinoxebuxak.pdfIn PDF document text
    • https://cdn.sqhk.co/pasivuzuke/gsibijr/pizudivizenowoxekenafexu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wufalejopasedor.epizy.com/konica_minolta_bizhub_c227.pdfIn PDF document text
    • http://wuwopeluba.epizy.com/nirepigoketemipugogilon.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/penidodilipepodobojobi.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/33198023853.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/digital_signal_processing_book_by_ramesh_babu.pdfIn PDF document text
    • http://vurukovejetaz.epizy.com/jowononajamiwebor.pdfIn PDF document text
    • https://s3.amazonaws.com/sogovekevi/menek.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/beginner_piano_music_jingle_bells.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/arabic_font_for_ms-_word_free.pdfIn PDF document text
    • http://gamugeko.rf.gd/autocad_lt_2019_system_requirements.pdfIn PDF document text
    • http://gelotamarabi.epizy.com/geometric_mean_and_harmonic_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/math_basic_algebra_worksheets.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_off0000f085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF085 5548 bytes
SHA-256: ef7a1b84ee064ada9bafcf40980af2712f4f763c918ba5c44a50a7ae90d87945
font_01_sfnt_off00010362.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10362 10916 bytes
SHA-256: 0188bb6729c2b8a00bcdb49e07a4e0685709231d7cc3aef35a071d7227808178

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