Malicious PDF — malware analysis report

Static analysis result for SHA-256 b76547a278b2b765…

MALICIOUS

PDF

72.9 KB Created: 2021-02-16 13:00:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 11d77e07ee7c1b969e4d63fdac7d3d77 SHA-1: e31177fb92fc12c24d4f25b8582bcc56d8db859e SHA-256: b76547a278b2b76513768431d2db3c971da298a883dc654c35dea11bea34fc34
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://leonvi.ru/wb?keyword=what%20is%20conscious%20capitalism%20business PDF link annotation
    • https://velonifiwivuli.weebly.com/uploads/1/3/0/7/130739758/nofeposejolasonuv.pdfIn PDF document text
    • https://fazozojoxupu.weebly.com/uploads/1/3/1/1/131163788/5e0d511848ab.pdfIn PDF document text
    • https://worojipe.weebly.com/uploads/1/3/1/3/131382243/tenakejaput.pdfIn PDF document text
    • https://darenufu.weebly.com/uploads/1/3/1/4/131438483/0be1ba.pdfIn PDF document text
    • https://monezoxikaxusoj.weebly.com/uploads/1/3/1/4/131453753/koripowejuborara.pdfIn PDF document text
    • https://zebaraxofalolal.weebly.com/uploads/1/3/0/8/130813897/0e3a45e18972ccb.pdfIn PDF document text
    • http://spencermcman.us/best_notsobot_commands0fay0.pdfIn PDF document text
    • http://requiredjokblog.com/chiffres_significatifs_exercicescagtf.pdfIn PDF document text
    • https://tovexalo.weebly.com/uploads/1/3/5/3/135348509/mufodezigiriw_zinobabali_xidazofikaguri_kimagomepuguju.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/rodakarugupoko/co_operative_exam_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/31467331322.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/old_merrybet_platform.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/barkley_fall_classic_race_report_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/kdigo_guidelines_chronic_kidney_disease.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/wijukazix.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/et_now_female_reporters.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/dumorifibasemuxuzululej.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/3rd_grade_multiplication_tables_worksheets.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_off0000e1b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B6 5232 bytes
SHA-256: 25875d0a4fe6ef46bd01932dacdb43e0e4cb066f6f38b3c67aba061c08da9c45
font_01_sfnt_off0000f36b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF36B 10264 bytes
SHA-256: 1ad717cd1cb74cb5125bec2482d36ad47c5dc7be7f17afdf69360cf17771e8f5

Open this report in the interactive analyzer, or submit your own file for analysis.