Malicious PDF — malware analysis report

Static analysis result for SHA-256 292cc9f5d86a145b…

MALICIOUS

PDF

74.4 KB Created: 2021-03-02 10:32:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8ec0f6bb54b888f8ca9180722730ab20 SHA-1: a27d169f3ee3f3ce48527ebecbf4d0783689282c SHA-256: 292cc9f5d86a145b4744ddbf87102c4c817a58a227dff02fbb73bfac7bc2b61e
196 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
  • 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://jottigo.ru/wb?keyword=chronicles%20of%20narnia%202%20full%20movie%20free%20online PDF link annotation
    • https://bopexetijajab.weebly.com/uploads/1/3/1/4/131411078/212698.pdfIn PDF document text
    • https://rakositove.weebly.com/uploads/1/3/4/5/134595637/tulonedamurib.pdfIn PDF document text
    • https://fugunukotuji.weebly.com/uploads/1/3/4/5/134589730/802c3f56827f.pdfIn PDF document text
    • https://pimejowutaviju.weebly.com/uploads/1/3/4/4/134495028/bixulezisutuni_lewubifufo.pdfIn PDF document text
    • https://pazibeze.weebly.com/uploads/1/3/1/6/131636707/4098920.pdfIn PDF document text
    • http://nemeloru.66ghz.com/bsc_online_form_2018_gujarat_university.pdfIn PDF document text
    • https://pesuwoleze.weebly.com/uploads/1/3/5/2/135295903/murujizix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465396/normal_5fe76336de351.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://molodetagako.epizy.com/ximasuje.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/organic_chem_acs_exam.pdfIn PDF document text
    • https://s3.amazonaws.com/dexodekelaseki/search_button_icon_png.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/code_interview_cheat_sheet.pdfIn PDF document text
    • http://tosodesuvivat.epizy.com/xebofe.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/canonical_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/91896072737.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_off0000e586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE586 5216 bytes
SHA-256: 6e3eafe734ef10c52ac56d89fc88a4300111448becae03c69c969c545b28a3d0
font_01_sfnt_off0000f71d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF71D 10924 bytes
SHA-256: f9495b02425d7d8ce7c072cebdb3cee797459d2642110dbe74df194fb7359808