Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ee50fc977a4552…

MALICIOUS

PDF

67.9 KB Created: 2021-02-23 22:01:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0ae79c5a64ae747e43a0c7b480df7ec4 SHA-1: 9ae3c39cbce5337cc8b28f6f0c0d4a56f5e0094c SHA-256: 32ee50fc977a4552e8a45afbb0056a95f7dfe31284f155c76b66f9336cf017c3
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://jacksth.ru/wix?keyword=dead+space+3+apk+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450041/normal_6026a16c31822.pdfIn PDF document text
    • http://wepegudefagixu.iblogger.org/samsung_galaxy_note_9_user_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvonazavo/GidQsmL/zero_gravity_ball_game.pdfIn PDF document text
    • https://cdn.sqhk.co/lelabepena/dggsIgG/66216889739.pdfIn PDF document text
    • https://cdn.sqhk.co/lexaxemiji/jSgjuha/stickman_killer_backflip_5.pdfIn PDF document text
    • https://cdn.sqhk.co/xewasejeve/ggf3hfB/miruwirirofiziwurenoxeku.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/hrD7Uhb/wrecking_ball_miley_cyrus_ukulele_chords.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/dhbhdic/36007333400.pdfIn PDF document text
    • https://cdn.sqhk.co/loxusovi/Q9ibjiB/post_office_open_veterans_day_2019.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/jusagi/ms_word_download_all_fonts.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/funny_jokes_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/tawisozuvigezul.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/pofir.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_off0000cd86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD86 5468 bytes
SHA-256: ffaa0eadb1c41b552954c8f0a37e3fc4ff341a400696038ef65504ff934599a6
font_01_sfnt_off0000e04e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE04E 10192 bytes
SHA-256: 51aab0948e177625c58f44b02f89616dd66cce4326fe98e4277ffc18128ca705