Malicious PDF — malware analysis report

Static analysis result for SHA-256 479b019643fa1137…

MALICIOUS

PDF

84.7 KB Created: 2021-04-02 01:40:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 6c898f8c48c86feee2eba4ab66f1e895 SHA-1: 7d70cd58c3ca9adac35e5a623ee20fa6bf8e9ba4 SHA-256: 479b019643fa113785e174ec671defa33e53b7841c6db4f03941bb1c96269005
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'https://gimoguvi.ru/123?utm_term=celebrity+voice+changer+apk+ios', which is likely intended to trick the user into downloading a malicious application or visiting a phishing site. No scripts were extracted, but the presence of the malicious URI and the strong detection signals indicate a phishing or malware distribution attempt.

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://gimoguvi.ru/123?utm_term=celebrity+voice+changer+apk+ios PDF link annotation
    • http://tojanulisito.iblogger.org/20156682612.pdfIn PDF document text
    • http://rivilidopu.medianewsonline.com/beganinaladakirotusezumuf.pdfIn PDF document text
    • http://chategratis.online/jiborewiturinufojrwya9.pdfIn PDF document text
    • http://gogotmif.space/medical_mycology_mcq_with_answers9mkx3.pdfIn PDF document text
    • http://rabevazilogu.iblogger.org/mathematics_worksheets_grade_3.pdfIn PDF document text
    • http://sizuxofutitarax.mypressonline.com/conte_blanche_neige.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/paropabaru/the_reluctant_fundamentalist_movie_cast.pdfIn PDF document text
    • http://fepovapow.rf.gd/training_tracking_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/assassin_s_creed_identity_android_free.pdfIn PDF document text
    • http://kinowazekuponaw.rf.gd/88231748249.pdfIn PDF document text
    • http://xubumanazi.rf.gd/wemusede.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/vapinowugekewofalojiwi.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/betternet_vpn_free.pdfIn PDF document text
    • http://tijozeburapo.rf.gd/gixijilawupogipowujut.pdfIn PDF document text
    • http://susupufewowe.epizy.com/sistema_de_informacion_y_comunicacion_en_auditoria.pdfIn PDF document text
    • http://mulotuzasokafo.epizy.com/carbon_nanotechnology.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/47938095761.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/research_paper_apa_format_examples.pdfIn PDF document text
    • http://zodiripek.myartsonline.com/55126389705.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5E6 5464 bytes
SHA-256: f1db5c9aed233df638456220a68087f995030b788b8d1e5f3e2bc5332b2955dd
font_01_sfnt_off00010881.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10881 11500 bytes
SHA-256: 36d09f842aebf4d4ddab216582ffbc500878d32b04634f4b0641d9b22499ef41
font_02_sfnt_off00012fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FD7 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501

Open this report in the interactive analyzer, or submit your own file for analysis.