Malicious PDF — malware analysis report

Static analysis result for SHA-256 e47893b03bd43f4b…

MALICIOUS

PDF

136.4 KB Created: 2021-01-22 21:32:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 435eb2144cf1bfc2b94af842ccf3c0ff SHA-1: 4c392b185ade0e99476515d68302e12a840d6209 SHA-256: e47893b03bd43f4b0a3e1090f27b60fc87560493341b9c5a9c24c604a85fe57e
96 Risk Score

Malware Insights

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

The PDF document contains a lure disguised as a quiz question, directing the user to an external URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the document content suggest it's designed to redirect users to malicious sites.

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://baarspo.ru/123?utm_term=which+of+the+following+describes+a+monopoly+market PDF link annotation
    • http://dutalamujuso.66ghz.com/51634307619.pdfIn PDF document text
    • https://site-1171454.mozfiles.com/files/1171454/temple_run_game_app_apk.pdfIn PDF document text
    • http://kadesevi.iblogger.org/12634507558.pdfIn PDF document text
    • https://site-1223444.mozfiles.com/files/1223444/215851160.pdfIn PDF document text
    • https://site-1195137.mozfiles.com/files/1195137/make_bookmark_in_online.pdfIn PDF document text
    • http://verezitabel.66ghz.com/going_on_a_bear_hunt_activity_sheets.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/belapawerezuju/mosikapuzafuwelikudaw.pdfIn PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/sql_server_smo_2008_r2.pdfIn PDF document text
    • https://s3.amazonaws.com/nakevoja/jiwosigomomot.pdfIn PDF document text
    • http://lugukejuraxa.rf.gd/marketing_campaign_budget_template.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/borbaad_bengali_movie_songs_free.pdfIn PDF document text
    • http://nimunofat.epizy.com/best_fitness_tracker_smartwatch_android.pdfIn PDF document text
    • http://kidogip.epizy.com/30696965370.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/plural_form_of_nouns_ending_in_es.pdfIn PDF document text
    • http://xuvotawelotito.epizy.com/tri_fold_brochure_template_adobe_illustrator_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/2010_cadillac_escalade_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/5336832301.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_off0001d011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D011 5980 bytes
SHA-256: ec907cb49bba9d48dba483ad7080477ebf38e47e9070157f19c681addabbff3c
font_01_sfnt_off0001e465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E465 14496 bytes
SHA-256: 2fcefbf2ccfcb2e48a1984dd7a776b842da0ad89d2169b9f8d103a14895d52e2

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