Malicious PDF — malware analysis report

Static analysis result for SHA-256 33b5bd6fe88823f9…

MALICIOUS

PDF

77.3 KB Created: 2021-02-21 09:40:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2481b06bedca5d7f6463ba15148679e9 SHA-1: d113f30bebbb35c6e6a58c8d79ff4e1f08067401 SHA-256: 33b5bd6fe88823f92cc51891a70f885fc5adfccbc6dcc9b46da0f9776962349e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/wix?keyword=the+tale+of+the+body+thief+pdf PDF link annotation
    • https://cdn.sqhk.co/xeliwiwogivo/hbMjht5/castle_defense_2_hack_apk_download.pdfIn PDF document text
    • http://13millions-warzone.store/88383656821lbn4a.pdfIn PDF document text
    • http://soldonlittleton.com/nidovodyc4yb.pdfIn PDF document text
    • https://cdn.sqhk.co/potasuregoz/UOGbSsn/fexelizake.pdfIn PDF document text
    • https://cdn.sqhk.co/vujixete/YHSXXEr/video_poker_machines_in_illinois.pdfIn PDF document text
    • https://cdn.sqhk.co/sedazozesufu/ihSha4O/ben_10_alien_experience_apk_mod.pdfIn PDF document text
    • http://yudekor.ru/913855184733xfkx.pdfIn PDF document text
    • http://creampiepow.club/vozevatarotovudativul8swkk.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/batoragubukepo/magadolura.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/72322263845.pdfIn PDF document text
    • http://xatesowogexiwu.epizy.com/bitter_moon_1992_movie.pdfIn PDF document text
    • http://goguvero.epizy.com/69455555294.pdfIn PDF document text
    • http://ripofosefalub.rf.gd/windows_10_backup_image.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/1971602661.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/appointing_a_guardian_template.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_off0000f47b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF47B 5048 bytes
SHA-256: 74edefb63535ca9cfbaf108711ab6dfc19a3047b9776f5afa74727adcf8c6205
font_01_sfnt_off000105aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105AA 10252 bytes
SHA-256: 264cb8737b08d0f2be2ea8e9e291fba0b31b5f53f110cf9e25e77974c80f7f72