Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fa18e886b18003a…

MALICIOUS

PDF

159.5 KB Created: 2021-05-06 19:55:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 0c32d8bb53de3990e274a0691ce1ead2 SHA-1: cc84026c6869fdfc9ea842b2f7954674bb725ba3 SHA-256: 8fa18e886b18003a6d8a8f9689b227ba66c0b3446a3b1e61d52b4fd286e5a1a8
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that mimics a search query, likely intended to trick the user into visiting a malicious site. ClamAV and ML classifiers strongly indicate malicious content, and the presence of embedded URLs further supports a phishing or credential harvesting attempt. No scripts were extracted, but the overall structure and URL suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://golowaki.ru/strik?utm_term=what+is+the+meaning+of+5+pillars+of+criminal+justice+system PDF link annotation
    • http://xazonojader.mywebcommunity.org/msrtc_advertisement_2_2020.pdfIn PDF document text
    • http://pifofobexaxel.mypressonline.com/aplikasi_caring_dalam_keperawatan.pdfIn PDF document text
    • https://cdn.sqhk.co/sifajoxojif/WYhhjcU/naruto_son_of_zeus_and_hera_fanfiction.pdfIn PDF document text
    • http://fuxuxixigu.scienceontheweb.net/99074306653.pdfIn PDF document text
    • http://sugebowupubixo.mypressonline.com/maxabinolagez.pdfIn PDF document text
    • http://naweboruziw.22web.org/xedoduwupedovabo.pdfIn PDF document text
    • https://cdn.sqhk.co/jamolipa/iawFkjj/442722648.pdfIn PDF document text
    • http://nopotaz.medianewsonline.com/assurance_and_insurance.pdfIn PDF document text
    • http://matimomewojime.mypressonline.com/pubisusivuwemosivo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://widuwuzal.rf.gd/fosijojarapewetonesu.pdfIn PDF document text
    • http://malukofe.rf.gd/timatewisivitaj.pdfIn PDF document text
    • http://bejusasojagu.epizy.com/bagusagiliwe.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/21332833842.pdfIn PDF document text
    • http://wadoromutisagar.myartsonline.com/nopaporafowi.pdfIn PDF document text
    • https://s3.amazonaws.com/zatazewoz/doditijuzus.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/xapuwabobelezevalerex.pdfIn PDF document text
    • http://likewiwojuxus.atwebpages.com/gate_2020_ece_question_paper_with_solution_made_easy.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/56779632626.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/jubok.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/ludedofedoguveviwiniretew.pdfIn PDF document text
    • http://sogoxutagejuno.atwebpages.com/ada_restroom_requirements.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_off0002337c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2337C 5744 bytes
SHA-256: fbb275ee590260bb2114da7b92f2b62dfa55176da3d2d946800e038fae239118
font_01_sfnt_off000246ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x246FF 11880 bytes
SHA-256: 3477154ccd78a986152a9251b39396d63f192e3e3409b9497ed5df3895f0d589