Malicious PDF — malware analysis report

Static analysis result for SHA-256 4df02800e5c1ced0…

MALICIOUS

PDF

72.5 KB Created: 2021-02-25 17:28:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: c6a8999e93eb46307610cf081cbb53eb SHA-1: 5093dbc0ae93ee3c2d252d381f2616ca124ae839 SHA-256: 4df02800e5c1ced055a37fbfa0ab4723eb5575fb2cbc5a3c93ba6e888c87cebc
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to product information, aiming to trick users into visiting the malicious URL.

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://jottigo.ru/123?utm_term=soundcraft+ui16+size PDF link annotation
    • http://fotubobuwenapu.scienceontheweb.net/dojitixozuzabut.pdfIn PDF document text
    • http://elinekici.online/54500031359cuh01.pdfIn PDF document text
    • http://xevusezes.medianewsonline.com/pretty_little_liars_season_4_episode_2_cast.pdfIn PDF document text
    • https://cdn.sqhk.co/vobevufubito/7Odjiij/83399015180.pdfIn PDF document text
    • https://cdn.sqhk.co/bulixanejad/jcjj8ie/5845583409.pdfIn PDF document text
    • http://chambreop.xyz/casio_g_shock_watch_manualf8u7h.pdfIn PDF document text
    • http://kataeta.club/421120918254voht.pdfIn PDF document text
    • https://cdn.sqhk.co/leluforeref/iiIjfgf/kilurewikorixazawelubep.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/dupula/closers_online_luna_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/kaxopiva.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/12466508231.pdfIn PDF document text
    • https://s3.amazonaws.com/farokof/firefox_focus_the_privacy_browser.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/rekosebusef.pdfIn PDF document text
    • https://s3.amazonaws.com/rakabexozu/chapter_4_integumentary_system_answers.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_off0000da82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA82 5340 bytes
SHA-256: 9bff1110e01ae54bd196e8c35329a47057dae5197c23b7ce137230a054083734
font_01_sfnt_off0000ecc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC8 12076 bytes
SHA-256: 2942b4f13818b36bd8895bfc2d4ac3c953044d70bbbfdef4bf3a2c0b495c2126

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