Malicious PDF — malware analysis report

Static analysis result for SHA-256 d126d2b56ec061e8…

MALICIOUS

PDF

67.4 KB Created: 2021-03-02 21:43:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 392fa7ba63a68c572a5d5526ee4df39b SHA-1: 54e43d81ef0529f66f1e33d64b4817709c9f0242 SHA-256: d126d2b56ec061e87d0396206d35bec827d2e61c4681c4e206b2fac7bda0ba3a
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://baarspo.ru/wix?keyword=sigma+509+bike+computer+manual PDF link annotation
    • http://lamakexo.scienceontheweb.net/epson_wf-2530_printer_wont_print.pdfIn PDF document text
    • https://demaxezobenila.weebly.com/uploads/1/3/1/8/131856353/dinetumopijilun_bovavexoge_goramamived.pdfIn PDF document text
    • https://gidaletibom.weebly.com/uploads/1/3/4/8/134881461/ae478cab5e8817f.pdfIn PDF document text
    • https://xezamojukugenu.weebly.com/uploads/1/3/5/3/135316948/4828850bf3.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/38303814550.pdfIn PDF document text
    • https://vaxudiku.weebly.com/uploads/1/3/4/7/134709892/3088704.pdfIn PDF document text
    • https://vupagivoro.weebly.com/uploads/1/3/4/3/134314863/sitojerurunar.pdfIn PDF document text
    • http://rexonina.medianewsonline.com/how_to_make_a_claw_machine_out_of_paper.pdfIn PDF document text
    • https://zasuzepomuban.weebly.com/uploads/1/3/4/6/134627511/padukokaloput_fegexemuvu_jijiw.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/zibenoroduzuw/38202787961.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/b_tech_movie_songs_malayalam.pdfIn PDF document text
    • https://s3.amazonaws.com/jezekemunidup/24644606536.pdfIn PDF document text
    • http://roveramo.atwebpages.com/form_shape_and_space_in_graphic_design.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/mowax.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/potibujufolugekifiwojax.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/jam_jar_labels_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/patilawasu/43946066352.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_off0000ca70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA70 5804 bytes
SHA-256: 6ce77e24ac42229d610c4bb0e7fd72b1326c32b90ae8a92e7369ecae01075b4d
font_01_sfnt_off0000de1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE1A 10104 bytes
SHA-256: 459f17868d4b60c0d1549729c99ecf6e6942bdca54881c9c6408223d4ac0415d