Malicious PDF — malware analysis report

Static analysis result for SHA-256 2148d6344191db59…

MALICIOUS

PDF

80.3 KB Created: 2021-04-09 16:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 18234ff02868538038e81cd661417b4b SHA-1: 20fbace80d31be8a0142b932ded2676846e72de3 SHA-256: 2148d6344191db598ade4f70d165c27ac906236b89a7e7c2312d38107680cf56
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing site disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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://dugedepap.ru/strik?utm_term=used+honda+dirt+bikes+for+sale+on+craigslist PDF link annotation
    • http://ganedoxumizaj.sportsontheweb.net/booklet_printing.pdfIn PDF document text
    • http://sizegoduxuxa.mygamesonline.org/aramaic_english_new_testament.pdfIn PDF document text
    • http://rawiduti.medianewsonline.com/remington_11-87_rifled_barrel.pdfIn PDF document text
    • http://dimozakebaba.scienceontheweb.net/panumikutesudalakuxu.pdfIn PDF document text
    • http://warewakeb.sportsontheweb.net/wofunokutuzewepes.pdfIn PDF document text
    • http://nomenowunesazoz.scienceontheweb.net/xezapovibemubanegokiwiti.pdfIn PDF document text
    • http://pubaninuw.22web.org/nubarixul.pdfIn PDF document text
    • http://nipizakevenuvis.scienceontheweb.net/xanetaforu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/borax_bead_test.pdfIn PDF document text
    • https://e432c3f7-acc0-403b-bc7f-1b8c16782643.filesusr.com/ugd/6a4899_9d51c76c226d49b6967730d8b66aa049.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c9a1396-3339-47b6-9701-4d6859f1ca97/luroxorefajagi.pdfIn PDF document text
    • https://s3.amazonaws.com/wutogugej/99714724822.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/wugetejupedujid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b86cd77-3c91-4cb2-8627-c961558d2f04/menimimefupufi.pdfIn PDF document text
    • https://b3a1a1c9-4f8f-4fb8-b7cc-7339030cc889.filesusr.com/ugd/162fe6_33d94caf9c1140ed97eaca772458a6ec.pdf?index=trueIn PDF document text
    • https://b1f0a730-f0e4-4bcf-918d-a915077b90d0.filesusr.com/ugd/a7c69d_5702e340e46647a7be72c5d8ea0e643b.pdf?index=trueIn PDF document text
    • http://vozekalazasof.rf.gd/ed_sheeran_guitar_sheet_music.pdfIn PDF document text
    • http://dazejifudora.onlinewebshop.net/usccb_catechism.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58540d70-e848-4dc8-b82d-d287f8c762e8/xoxinawizigafisute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba9d093c-78a9-467b-9e1b-e315c0458278/planets_word_search_free_printable.pdfIn PDF document text
    • https://5ec50ee2-6c76-415b-b731-82d7de26534b.filesusr.com/ugd/826e74_1ac22316d6f043a791b795b51604dccc.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/51553490730.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF58 5264 bytes
SHA-256: ebe4a53a23e84f2fc60a8cad608970594d71ab866b909b126516935ac44eae24
font_01_sfnt_off00010129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10129 10760 bytes
SHA-256: b7cd6bf7c4b4179912382a60db8d742edd582f1103dc8d8fca82ace556c6510c
font_02_sfnt_off000125b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125B4 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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