Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff9173be8e04bc26…

MALICIOUS

PDF

79.1 KB Created: 2021-03-12 05:49:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a41fc764f5f8ac4f2f2abc1905ad0878 SHA-1: 18d9725e4baf0f25fd072851d6df733732126348 SHA-256: ff9173be8e04bc26cf06609ae11f27230db0a5750854b6474c8dd4c7c17ca077
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, appears to be related to the URL's keyword, suggesting a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://seumenha.ru/award?keyword=hidradenitis+suppurativa+nhs+pdf
    • http://revilokepudidu.mygamesonline.org/biografias_de_los_personajes_mas_importantes_de_la_independencia_de_mexico.pdf
    • http://texulateniz.iblogger.org/what_is_quantum_light_healing.pdf
    • http://busevabafumoje.iblogger.org/5950040638.pdf
    • http://xaraxag.mypressonline.com/vavijotemen.pdf
    • http://gapekiza.iblogger.org/monster_illuminessence_light_bulb_manual.pdf
    • http://demazopozegefo.22web.org/20310039581.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bidurudilidujug/98797551337.pdf
    • http://lelekon.epizy.com/polk_surroundbar_2000_instant_home_theater.pdf
    • http://jazifuz.epizy.com/paragraph_of_the_week_prompts.pdf
    • https://s3.amazonaws.com/xojafemori/nexa_bold_italic_font_free.pdf
    • https://s3.amazonaws.com/fonazuzixagizir/zonapasufarujuwagokalu.pdf
    • https://s3.amazonaws.com/fizaxo/47736932847.pdf
    • http://dizoterimivitap.rf.gd/53318642288.pdf
    • https://s3.amazonaws.com/gateme/lufodozivozonipe.pdf
    • http://kikumofesokir.rf.gd/how_to_do_a_probability_venn_diagram.pdf
    • http://businewon.rf.gd/batatuluturovugepo.pdf
    • https://s3.amazonaws.com/nopomewegobij/bixabisodumuder.pdf
    • https://s3.amazonaws.com/nuselufuzo/69832517548.pdf
    • https://s3.amazonaws.com/liwafo/degraded_performance_coinbase.pdf
    • https://s3.amazonaws.com/bupaxomu/iso_iec_27001_annex_a_controls.pdf
    • https://s3.amazonaws.com/jiwisi/sazuranisaxetabejagiwij.pdf
    • http://gikumud.epizy.com/vesabazazibigeti.pdf
    • http://lowepasonadoji.rf.gd/reading_a_graduated_cylinder_worksheet.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_off0000f8e7.bin
a4553c773e44db80e892058f448878761d4d5796a0a87d8046386d640a7f6d6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E7 5120 bytes
font_01_sfnt_off00010a52.bin
1f6769538fbb4170757381ac4911d46074a585dae9824e07f527c644fdf9309d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A52 10320 bytes

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