Malicious PDF — malware analysis report

Static analysis result for SHA-256 c453da96fe03aad3…

MALICIOUS

PDF

70.0 KB Created: 2021-02-18 22:08:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7b1a6e7f848d08cd900a26f9d0b0865f SHA-1: 32fde785932fa3c97e579fbe5911e2e789f2dd18 SHA-256: c453da96fe03aad346af7af334a8e1911f116e887e7e5c9d73612662a055b6d7
134 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bologen.ru/123?utm_term=schwinn+bicycle+speedometer+manual PDF link annotation
    • https://bopilopuneliniw.weebly.com/uploads/1/3/5/3/135304065/2582351.pdfIn PDF document text
    • http://nerroba.info/photo_editor_blur_background_freefik70.pdfIn PDF document text
    • http://lasleymarkt.ru/agreement_of_sale_word_template3md3p.pdfIn PDF document text
    • https://sovajavab.weebly.com/uploads/1/3/4/0/134041947/5372985.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391636/normal_601421c044e19.pdfIn PDF document text
    • http://mukumirulaf.22web.org/sebavenapetopusetu.pdfIn PDF document text
    • http://graatorama.fun/o_presente_spencer_johnsonp0w7n.pdfIn PDF document text
    • https://bevowodawalejap.weebly.com/uploads/1/3/4/3/134363876/nisulisekisulolop.pdfIn PDF document text
    • https://waxovidimised.weebly.com/uploads/1/3/4/4/134446407/8056265.pdfIn PDF document text
    • http://discout.online/tuwagitowedodosorolol095ds.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388422/normal_5fda8e428db80.pdfIn PDF document text
    • http://nickned.me/fodibezidomuq0af.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/rumezo/cisco_6509_e_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/50842567420.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/anime_rise_apk_baixar.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_off0000d447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD447 5752 bytes
SHA-256: f6d8b3e1dc03dd7bee0efc82eb09c5f7fd858e0b08b5e4affdcfd75c08808d3a
font_01_sfnt_off0000e7c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C1 10380 bytes
SHA-256: 5a99b298e78a3a8a29d55b2b8649bb18da1f3ea799654d1fff58438ccd6fb696