Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b8c7388bad6bb67…

MALICIOUS

PDF

81.9 KB Created: 2021-03-15 05:30:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4faf7e9e12ace85f45bcd7610100cb1f SHA-1: 90ba815300b2edec3226a5dff0e9077e66248aa0 SHA-256: 1b8c7388bad6bb67fd837207667e474c4e435c430876a83b97b0c5861ab3277b
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to research guidelines, which is a common tactic for phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://pelibifir.ru/123?utm_term=guidelines+in+making+conclusion+in+research
    • http://wunadimizurened.medianewsonline.com/soxurugusavisise.pdf
    • http://dikiradojasika.iblogger.org/suvewasojewude.pdf
    • http://tersq.fun/does_obamacare_actually_workzhmmg.pdf
    • http://lnstagramverificationbadge.com/razejoqmw45.pdf
    • http://idem-peshkom.ru/pixesoworikimokokosiwyrgsd.pdf
    • http://nemosixumeki.mypressonline.com/32484105016.pdf
    • http://gagitevanonuti.mywebcommunity.org/86560574277.pdf
    • http://lokubakodo.getenjoyment.net/smiths_sharpening_stone_instructions.pdf
    • http://autoport76.online/disgaea_5_complete_post_game_guideuo691.pdf
    • http://lixamewura.iblogger.org/bernette_60_sewing_machine_manual.pdf
    • http://gagimubu.mywebcommunity.org/jozogedofar.pdf
    • http://sewatumafuta.medianewsonline.com/73387641485.pdf
    • http://vavazexowupex.medianewsonline.com/movie_review_format_for_high_school_students.pdf
    • http://m-ryanaf.site/94257308496pm49t.pdf
    • http://elinekici.online/how_to_fix_a_washing_machine_drain_pumpbryd8.pdf
    • http://topcreditcheck.info/nursing_drug_booksmcnr.pdf
    • http://nusururak.22web.org/pukutepobasipuluxoj.pdf
    • http://numulul.mygamesonline.org/87333847806.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://radujexoxetapil.epizy.com/bhaiya_ji_smile_video.pdf
    • http://zufonokimilije.epizy.com/16414082901.pdf
    • http://sufumawug.epizy.com/vanixorop.pdf
    • http://magivuxitafexox.rf.gd/ccs_stable_angina_guidelines.pdf
    • http://dijuvunote.onlinewebshop.net/82550779452.pdf
    • http://lorabedujeweb.epizy.com/freezing_point_depression_lab_report_answers.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_off00010165.bin
63bde0ac604b8f3eb88054b0d71f81acfc0f84cef654049fba4d06e0d0db7564		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10165 5448 bytes
font_01_sfnt_off000113c2.bin
51e0bd5a6fdd4e7068ffe0b6bc1926ac9bc9dc76230cad6243283a35e1fbe41e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x113C2 11156 bytes

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