Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f5a8baa15a36ae…

MALICIOUS

PDF

69.5 KB Created: 2021-02-23 04:32:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9ba3078b9c5172ce40dcf4a2c143a744 SHA-1: 221f3784aa2fa1e272316172044a49fa26e2240a SHA-256: f2f5a8baa15a36ae12ba8487076af3283ee25fb4c233532b3da13d2e0050d2e1
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://baarspo.ru/wix?keyword=it+worksheet+std+9 PDF link annotation
    • https://cdn.sqhk.co/petebodok/jYgjifa/samsung_email_address_book.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444117/normal_5ff6aaf12cb29.pdfIn PDF document text
    • http://akvatehnika74.ru/bizerba_st_service_manualsr0b2.pdfIn PDF document text
    • https://cdn.sqhk.co/lexelinowe/bwzzD8c/xcom_enemy_within_console_commands_steam.pdfIn PDF document text
    • https://cdn.sqhk.co/dijabidasu/R3nhfma/51972171413.pdfIn PDF document text
    • https://cdn.sqhk.co/ripalufix/ihidt3h/8455224312.pdfIn PDF document text
    • https://cdn.sqhk.co/givogaduta/hbgeidU/paludododudotisog.pdfIn PDF document text
    • https://cdn.sqhk.co/wugunifikezu/hgjfTGj/basagawuzijelopotoves.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419820/normal_60003b60e3611.pdfIn PDF document text
    • https://cdn.sqhk.co/fegukajebaj/zgi4gcf/84464256584.pdfIn PDF document text
    • https://cdn.sqhk.co/tavanaru/jIepggF/zombie_tsunami_hack_full_pet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383304/normal_5fdea188c6292.pdfIn PDF document text
    • https://cdn.sqhk.co/nomelafu/gjiiigw/clash_royale_decks_arena_8_no_legendaries.pdfIn PDF document text
    • http://kinoxca.xyz/269983253040kogq.pdfIn PDF document text
    • http://tdsevsvet.ru/22365446907mzsen.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/jokotaziweluge/jual_mesin_dough_sheeter_bekas.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/assassin_s_creed_revelations_dlc_trophy_guide.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_off0000d5c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C6 4920 bytes
SHA-256: 491d5446e28df420a5610911262b7d9dd68741ff5d7e5de42fae66773e07711e
font_01_sfnt_off0000e68d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE68D 10256 bytes
SHA-256: 6060c2d9ac9e28c79e45839db5397df48208ea40804c347b203d37c93258a697