Malicious PDF — malware analysis report

Static analysis result for SHA-256 48b19780af0bc39f…

MALICIOUS

PDF

67.8 KB Created: 2021-03-02 03:12:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ef36fb2c1321f333b0e903d5dd2c1d63 SHA-1: 32aac24dcf9efb08dfe068cb0267861df2fd6bb9 SHA-256: 48b19780af0bc39fb61c547ad7961dd3c9432026d2f9c9b156e8b6f98607027d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/award?keyword=1999+honda+shadow+aero+1100+battery+cover PDF link annotation
    • https://cdn.sqhk.co/sebutarukaw/ni3hihi/60993136075.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403541/normal_5ff2da1a35069.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464078/normal_6008f90bef74d.pdfIn PDF document text
    • https://cdn.sqhk.co/rebabafa/ghghCgd/87914626771.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447626/normal_602f3719b5759.pdfIn PDF document text
    • https://cdn.sqhk.co/kavonalitego/ivrjfgg/tapedi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402246/normal_5ffe4470dab3e.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/xijuxosisomuna/vebasubomowab.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/automatsko_upravljanje_knjiga.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/80845464617.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/xizegufupudarapoje.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/free_piano_lead_sheet_music.pdfIn PDF document text
    • http://fazegixedibuw.rf.gd/vivitar_bluetooth_wireless_speaker.pdfIn PDF document text
    • http://satanomoxa.rf.gd/allison_transmission_rebuild_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/killing_eve_season_2_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/lemagizo.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_off0000c48b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC48B 5644 bytes
SHA-256: 11bde4801e5a2365ef28384008bb2e25f67f9d2b43056b548213cbc59c3f4408
font_01_sfnt_off0000d7cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CF 13340 bytes
SHA-256: a7983085474a733308dffaf08552852ecaef7a4ec54c4f116e3e876784a93378