Malicious PDF — malware analysis report

Static analysis result for SHA-256 facc3d5f3522ffdd…

MALICIOUS

PDF

69.3 KB Created: 2021-02-22 17:53:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3f93cbd137b237f9d69c7e6fcc7c2741 SHA-1: 4c4fbb0e721c05d9bda285f06230c74319331744 SHA-256: facc3d5f3522ffddc7e0338d244f71fb0b71b4fb93c8ee909a9fc57d6a162b9b
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://bologen.ru/wix?keyword=newair+ab-1200+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476756/normal_5fd95770de3e8.pdfIn PDF document text
    • https://cdn.sqhk.co/notizejamebo/djijdjb/tidivuxonigigobi.pdfIn PDF document text
    • https://cdn.sqhk.co/lijusute/fPhdheO/world_best_games_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370278/normal_601b7646ed063.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446263/normal_5ff05d1d41a66.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492246/normal_5ffef9918e5c4.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/rekorewexidiwo/26892367027.pdfIn PDF document text
    • http://taperimogitunal.epizy.com/bailando_spanish_version_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/rololawubi.pdfIn PDF document text
    • https://s3.amazonaws.com/zifilobesumafi/51164278258.pdfIn PDF document text
    • http://pidawuz.epizy.com/ace_2018_test_series_mechanical.pdfIn PDF document text
    • https://s3.amazonaws.com/kobivimelelo/administrao_de_empresas_em.pdfIn PDF document text
    • http://riremeg.rf.gd/please_find_the_following_information_below.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/fintrac_guidelines_large_cash_transaction.pdfIn PDF document text
    • http://bemawom.rf.gd/aocs_official_method_ca_5a-_40.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_off0000c5b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B5 5212 bytes
SHA-256: 4ca715b86de38c7aacd48a81e5a5d8102ced2681501630082733438c9e2a5109
font_01_sfnt_off0000d77a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD77A 15468 bytes
SHA-256: 095874e9448dbf05cc5f1776636fbb0ef7166819afee059f7d077b41da8694fb