Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c9751a13ffdfddc…

MALICIOUS

PDF

66.2 KB Created: 2021-02-28 12:07:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8d0e098c19b6a9bc4277ea9b13899c53 SHA-1: 22ea0d38817f27da6ed000e6763182acf919eecd SHA-256: 1c9751a13ffdfddc899f64eed5fb2cd1548fe1d92c0312c012e6a2262c549991
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://jacksth.ru/wix?keyword=jenn+air+range+manual PDF link annotation
    • https://daputonekamipit.weebly.com/uploads/1/3/0/7/130775603/sixovotavasin_jopobazubal_redifaxini.pdfIn PDF document text
    • https://dufadijikog.weebly.com/uploads/1/3/5/3/135325035/8229111.pdfIn PDF document text
    • https://pozimifekof.weebly.com/uploads/1/3/4/6/134674510/7762207.pdfIn PDF document text
    • http://urolog.xyz/format_string_vulnerability_lab_answers9wmoo.pdfIn PDF document text
    • http://tanuwoxomasosog.22web.org/american_truck_simulator_update_1._34.pdfIn PDF document text
    • http://italy50wow.pro/game_hades_star_mod_apku3mmu.pdfIn PDF document text
    • http://toolsbestpricemicrometer.site/hurst_review_book_answersfiprw.pdfIn PDF document text
    • http://polfact.site/paste_ortodox_20204mpty.pdfIn PDF document text
    • https://bomuwokobija.weebly.com/uploads/1/3/4/0/134041081/566fbd3f2514c0.pdfIn PDF document text
    • https://damujulul.weebly.com/uploads/1/3/5/3/135335913/91443d35.pdfIn PDF document text
    • https://numeroluxovuz.weebly.com/uploads/1/3/4/7/134733954/3800961.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://folezazav.epizy.com/40518751278.pdfIn PDF document text
    • http://kexesunewe.rf.gd/josujukipunefalidixidi.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/zofel.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/the_boy_in_the_field_book_review.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/7034574213.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/metodo_del_carbono_14.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/24369937724.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/chemistry_form_1_revision_papers.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_off0000c8cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8CD 4816 bytes
SHA-256: e14c1a9658e4720ee6a6a7c03449ebafa847bed534077be44cd3f48bea4c8e27
font_01_sfnt_off0000d91b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD91B 10212 bytes
SHA-256: ca9af1dd7325004e4047b915e18aafd54620e2cfe4f70dc797eaff6f5439bc41