Malicious PDF — malware analysis report

Static analysis result for SHA-256 db88461808cacb39…

MALICIOUS

PDF

69.5 KB Created: 2021-03-31 02:10:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 117ee3a10bd6cf77a2210bdadfe91df6 SHA-1: 7eb0b7d35edeb0831697cc9c739502b00206be42 SHA-256: db88461808cacb39994162a628e023d4fe3098957b0d340a03538e86b9f83103
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/award?keyword=learn+english+grammar+in+gujarati+pdf
    • http://kakolamilasaru.medianewsonline.com/68152321412.pdf
    • http://fajutixosisi.22web.org/black_panther_wallpaper_hd.pdf
    • http://xuribof.medianewsonline.com/wivevusejabixumafani.pdf
    • http://fexevewuli.mypressonline.com/catalytic_reaction_engineering.pdf
    • http://ruzopiter.iblogger.org/troy_bilt_5500_generator_oil_capacity.pdf
    • http://ponemofetu.scienceontheweb.net/definition_of_goodwill_in_accounting.pdf
    • http://peramabejakes.sportsontheweb.net/kujodeze.pdf
    • http://tejasatobes.medianewsonline.com/3565777962.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/purawuma/kafigonemadimu.pdf
    • http://fodapimogu.rf.gd/defufutivajikaruvilasojil.pdf
    • http://zexizel.epizy.com/how_to_day_trade_options.pdf
    • http://datidalumoz.rf.gd/breville_bambino_espresso_machine_manual.pdf
    • https://s3.amazonaws.com/jepinebawo/87733957942.pdf
    • http://bofumegudatoxos.rf.gd/87138114956.pdf
    • https://s3.amazonaws.com/bevarolimesale/gudajurerewitegavusuko.pdf
    • https://s3.amazonaws.com/gimisorixosu/93418351156.pdf
    • https://s3.amazonaws.com/tikoweravisixu/advisorshares_vice_etf_fact_sheet.pdf
    • https://s3.amazonaws.com/belopudevuzuza/asphalt_8_airborne_pc.pdf
    • http://pikexiwa.epizy.com/46289961082.pdf
    • http://tubitige.epizy.com/36629416518.pdf
    • https://s3.amazonaws.com/tamovagag/rangers_apprentice_royal_ranger_books_in_order.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2a2.bin
ad8880757514127d98a4abd97b88aa0b1d5d325294b447475e2ae1bc0cb3df6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD2A2 5472 bytes
font_01_sfnt_off0000e51d.bin
f3737ae8733a7d5b51c9e4673dfd06a282e21c64e7fc97e6208f184afeb701d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE51D 10392 bytes

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