Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f24d68a562cb030…

MALICIOUS

PDF

72.1 KB Created: 2021-01-20 10:46:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 909d84d4cdbf4c80f1c3b582389d19d1 SHA-1: 00e5b029615aa2f649f9f55beeb3eab60472789b SHA-256: 6f24d68a562cb03092c213dd02ca2ad76f1b2d316da450bf72c869556c03bccc
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://maypoin.ru/aws?utm_term=behold+the+lamb+passion+sheet+music PDF link annotation
    • https://cdn.sqhk.co/putizimetiwe/bmojcji/zebovo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401525/normal_5f9bc5082cf00.pdfIn PDF document text
    • https://site-1177701.mozfiles.com/files/1177701/sumagujevige.pdfIn PDF document text
    • https://site-1174929.mozfiles.com/files/1174929/bca_buyers_fees_listing.pdfIn PDF document text
    • https://site-1168252.mozfiles.com/files/1168252/18058844061.pdfIn PDF document text
    • https://site-1193774.mozfiles.com/files/1193774/gifawizuwukejisila.pdfIn PDF document text
    • https://site-1168281.mozfiles.com/files/1168281/mepudorufutitubisonu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376101/normal_5ffa39094ec18.pdfIn PDF document text
    • https://site-1168130.mozfiles.com/files/1168130/download_ninja_prime_tap_quest_mod_apk.pdfIn PDF document text
    • https://site-1178794.mozfiles.com/files/1178794/civilization_2_free_for_android.pdfIn PDF document text
    • https://site-1174038.mozfiles.com/files/1174038/sims_4_hide_hidden_objects_cheat.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/lemerisinivum/bonofojamaluwo.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/parkour_maps_minecraft_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/requisition_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/sazariwapa/dasufolo.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/jetokevumobedafababiv.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/61436716069.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/rafuni.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_off0000db93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB93 5404 bytes
SHA-256: b1bce19d8379f182bd4d0a3a422b9b514ed30ba2e7e9f5f409b6715b4e1c6951
font_01_sfnt_off0000edc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC9 11152 bytes
SHA-256: 3b42a126914d755630d33a3e11397d12a0a535e7bf99cf756caec1dec8bee200