Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e33973c9fd4572b…

MALICIOUS

PDF

76.6 KB Created: 2021-02-17 22:48:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 925cf64523bb5e650a386ae2d43751fc SHA-1: 5cda69c927b19a89c034ddfc1d7fb8809771da22 SHA-256: 7e33973c9fd4572b184d91257fb9479e8014cb5d1d5a3809e53b2d0ca7232cac
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/aws?utm_term=how+many+quarts+of+transmission+fluid+does+a+2004+honda+odyssey+take PDF link annotation
    • http://kupivse.xyz/798604268642g7b1.pdfIn PDF document text
    • http://bokugezus.66ghz.com/doziludavepatunapezeguvus.pdfIn PDF document text
    • http://help-feedback-amzn3.xyz/gross_the_science_of_mind_and_behaviourn0bol.pdfIn PDF document text
    • http://uchebnoe.website/fey_wyvern_gem_farmaspac.pdfIn PDF document text
    • http://copyrightprivacy.site/homer_the_odyssey_robert_fagles22nm8.pdfIn PDF document text
    • http://baugroup.info/cedula_catastral_informada_uruguay95b9f.pdfIn PDF document text
    • http://mogitumo.iblogger.org/noncontrolling_interest_balance_sheet_presentation.pdfIn PDF document text
    • http://pawaridifos.iblogger.org/60663509883.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414331/normal_5fc5bb4720a26.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zisufabelez.epizy.com/5101189599.pdfIn PDF document text
    • http://pisotusapuveg.epizy.com/nes_emulator_games_for_android_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/guide_book_for_drawing_disbursing_officers.pdfIn PDF document text
    • https://s3.amazonaws.com/sojenozap/app_store_updates_not_ing.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/triangle_congruence_worksheet_2014.pdfIn PDF document text
    • http://zulexesovo.epizy.com/xofatumijupefafar.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_off0000ecf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECF8 5852 bytes
SHA-256: a531bfbf5fb72921cc057765d56e4a4b4845a3424e25e971a40cefccb13b6a2d
font_01_sfnt_off000100ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100CE 10544 bytes
SHA-256: 5ae30a2620b366a122f894ee38e1d5ff4bf67f2370a3d2e3f8a2fe429cad3eb4