Malicious PDF — malware analysis report

Static analysis result for SHA-256 d424086560642dec…

MALICIOUS

PDF

68.2 KB Created: 2021-02-26 13:04:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e322a2b5dce5d653465c6fcd4fac6f94 SHA-1: 91cce0ebbc295c808b454b167da948bf4e313db1 SHA-256: d424086560642dec2aea70763a789ade9a62c6bd1c16e529245f9b87c4f17ce5
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://fokemale.ru/award?keyword=the+secret+book+pdf+free+download+in+bengali PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4371808/normal_5fe11a9903183.pdfIn PDF document text
    • http://laxana.ru/fetajunuriwerobejapm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426545/normal_600a7a9a44004.pdfIn PDF document text
    • http://regse.website/carbide_create_softwarey2hoa.pdfIn PDF document text
    • http://wifunagidoli.mypressonline.com/givuwenenasedojebop.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458390/normal_5ff9c7769cbb7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393019/normal_5ffe9ec565d88.pdfIn PDF document text
    • http://dirtygirl.fun/el_moasser_math_1st_secondary_guide_answers3miuo.pdfIn PDF document text
    • http://zutatowatipo.mywebcommunity.org/70836830339.pdfIn PDF document text
    • http://vurejowug.mypressonline.com/pokufosupadaler.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485004/normal_600ac67e342eb.pdfIn PDF document text
    • http://pc-remont.website/79391882404h3jys.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385235/normal_5fee63b4cfee0.pdfIn PDF document text
    • https://cdn.sqhk.co/bosamame/uhjhojc/84619690646.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cdc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC9 5660 bytes
SHA-256: 6f08deb989c6c903bb2be3022149abf3d21057cb54b4c5d539244bdd28936b10
font_01_sfnt_off0000e118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE118 10148 bytes
SHA-256: 14ff4f09aeef22b3f06bbb06d4978cc2867f240145c23f1524657dcc8a644a2a