Malicious PDF — malware analysis report

Static analysis result for SHA-256 f29587ccbcd18c58…

MALICIOUS

PDF

72.2 KB Created: 2021-02-18 01:16:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 25c2157a96c7bb77625577411d255d24 SHA-1: f69367c764c4c1d90ffd4259617ab68421067527 SHA-256: f29587ccbcd18c585ccdd56135bfbbe21b9e7c9f8040d606fa9e16c8be2f00b6
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=neverwinter+nights+2+keep+guide PDF link annotation
    • https://danivuzi.weebly.com/uploads/1/3/2/6/132681213/pevosexisefura_fozunokisazad.pdfIn PDF document text
    • http://lnstagramoriginal.com/horizon_mobile_village_rv_parktu4p6.pdfIn PDF document text
    • https://turonobofudub.weebly.com/uploads/1/3/4/4/134463989/wekijikadekawotomavi.pdfIn PDF document text
    • https://cdn.sqhk.co/bulixanejad/jgDjad3/naughty_boy_la_la_la_music_video_meaning.pdfIn PDF document text
    • https://riwusivi.weebly.com/uploads/1/3/4/9/134900433/kagezugivet_mebof.pdfIn PDF document text
    • https://jubewujug.weebly.com/uploads/1/3/4/6/134653216/rifinewid_faxitedasilolu_xeromerib_sixarogulukan.pdfIn PDF document text
    • http://datekal.22web.org/bhakt_pundalikasathi_marathi_song.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421061/normal_5ff39d572063c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446394/normal_5fd30a6034c32.pdfIn PDF document text
    • https://cdn.sqhk.co/lilaxikixo/BjeSndh/chili_777_casino.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368489/normal_5fd660c061fe6.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/zakunafu/architectural_drafting_and_design_book_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/ages_and_stages_3_questionnaire.pdfIn PDF document text
    • https://s3.amazonaws.com/rodakarugupoko/arjun_reddy_telugu_full_movie_isaimini.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/identity_thief_movie_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wanalovum/canon_rebel_t6_eos_manual.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_off0000de21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE21 5296 bytes
SHA-256: 06e81c14b131b88cd00de495df91cc38bf60cfa27f7d9a87733c1d1003762921
font_01_sfnt_off0000f049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF049 10324 bytes
SHA-256: c8fd92c31da1ade89fb90983be6a352d530bd43887748d4e55a814433056a43e