Malicious PDF — malware analysis report

Static analysis result for SHA-256 0515cfb7a3080544…

MALICIOUS

PDF

70.3 KB Created: 2021-02-22 21:02:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 0ddb480d182a5aff745ab6db59348178 SHA-1: 90b135d5e9c2470180114bf7fcbab3d156035f4a SHA-256: 0515cfb7a30805445118551f6fcd3069ff516176b22f6823177091b3d5d11d04
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=dragonvale+mod+apk+unlimited+money In PDF document text
    • http://lovunusugi.22web.org/android_browser_mit_video.pdfIn PDF document text
    • https://cdn.sqhk.co/joxesinejag/cii7nao/vewatikobujinuse.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489994/normal_5ffe9477ae656.pdfIn PDF document text
    • https://cdn.sqhk.co/xasomegupur/i7Uibhe/juzimugi.pdfIn PDF document text
    • https://jefabogab.weebly.com/uploads/1/3/1/6/131636769/3f8d48f8fbbb.pdfIn PDF document text
    • http://zazeteku.iblogger.org/programming_and_problem_solving_through_c_language_book_in_hindi.pdfIn PDF document text
    • https://safamitiwifiro.weebly.com/uploads/1/3/0/7/130739579/luxomivevaz.pdfIn PDF document text
    • http://gimakelodikovij.iblogger.org/kunavisanemufowigugixi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410975/normal_60140456cecfb.pdfIn PDF document text
    • https://cdn.sqhk.co/pigalixow/hak5bj5/fun_reading_worksheets_for_kindergarten.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sulonofanez.rf.gd/btec_level_3_performing_arts.pdfIn PDF document text
    • http://fujifumava.epizy.com/10836884215.pdfIn PDF document text
    • https://s3.amazonaws.com/patilawasu/zavetabumilepalila.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/fefejosupixofa.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/90460491.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/redomovivifazenejixe.pdfIn PDF document text
    • https://s3.amazonaws.com/towutoginadivu/70014519981.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7F7 5328 bytes
SHA-256: 80af3b97403254aa379c03bd8a5d884f96bc43e19af189542e7eca911f5346d1
font_01_sfnt_off0000ea14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA14 10060 bytes
SHA-256: 1983778b99a362ca38530188d9db41d455f4b3b23759807ff7d143c7e97eb813

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