Malicious PDF — malware analysis report

Static analysis result for SHA-256 eabc9263ff1b1167…

MALICIOUS

PDF

72.7 KB Created: 2021-02-12 18:49:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e1f1f596fd2d6849565f529779133457 SHA-1: 2f00ddb80dac6c23ab69c2c0344b8ee5277fd33c SHA-256: eabc9263ff1b1167404f80f1c19ebaf5259fdeb2343b218b3751cc7666f2884b
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=locke+and+key+comic+pdf PDF link annotation
    • https://nujetamewude.weebly.com/uploads/1/3/4/8/134881912/3137192.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453908/normal_5ff1d02923bb7.pdfIn PDF document text
    • https://jurujixomegisi.weebly.com/uploads/1/3/4/7/134745805/bd083c3e.pdfIn PDF document text
    • http://sosunimepewe.22web.org/android_auto_mirror_senza_root.pdfIn PDF document text
    • https://subutadenurafo.weebly.com/uploads/1/3/4/5/134581349/9319428.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415530/normal_5fe828cde5886.pdfIn PDF document text
    • https://dunevija.weebly.com/uploads/1/3/4/3/134306837/30a2b9be244.pdfIn PDF document text
    • http://lefenup.22web.org/imagenomic_portraiture_serial_mac.pdfIn PDF document text
    • https://dibigisilob.weebly.com/uploads/1/3/1/6/131607467/c24334fae.pdfIn PDF document text
    • https://betixajivuf.weebly.com/uploads/1/3/4/9/134900014/8771474.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481402/normal_6025042c18095.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/mokuwanibof/mariah_carey_emotions_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/can_you_netflix_movies_to_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/bengali_movie_free_a_to_z.pdfIn PDF document text
    • http://duxurulokij.epizy.com/analogy_practice_middle_school.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/android_browser_history_check.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_off0000e0d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D2 5104 bytes
SHA-256: 1d1ff729ef9ec41bdcc71866e2bd1a216b9c91cd74aac95d4967e3e7c4bf8079
font_01_sfnt_off0000f23e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF23E 10492 bytes
SHA-256: a5301418f7b9209be8add8144a8219f0297dafda85f1e6521e35aaedb7d2c6fb