Malicious PDF — malware analysis report

Static analysis result for SHA-256 8310411d02e8bcb0…

MALICIOUS

PDF

81.7 KB Created: 2021-03-31 04:49:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: fe1640c517ca536a437f391784162ec0 SHA-1: b816001e95ed1399a59963cb9335c42384883872 SHA-256: 8310411d02e8bcb06ec943ab1018255fcffb77d6ff29f1a9b300443b0d9ea4f2
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The document body, though partially garbled, contains text suggesting a lure related to 'Women's bodies women's wisdom 2020' and points to an external URL. This URL is likely used to host or redirect to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://seumenha.ru/strik?utm_term=women%2527s+bodies+women%2527s+wisdom+2020 PDF link annotation
    • http://trysalon.xyz/kunopilunevetulaxolarkiwi.pdfIn PDF document text
    • http://novuzigekisev.iblogger.org/ways_of_the_world_3rd_edition_chapter_7.pdfIn PDF document text
    • http://zukoretevir.medianewsonline.com/95187094017.pdfIn PDF document text
    • http://jijufopofe.iblogger.org/suvutugaparadokapejid.pdfIn PDF document text
    • http://ygrash.website/libros_cristianos_de_interpretacion_de_sueos0d6a5.pdfIn PDF document text
    • http://kavelokafozi.medianewsonline.com/physical_geology_and_geomorphology_book.pdfIn PDF document text
    • http://fallofelin.online/mulor9mg2n.pdfIn PDF document text
    • http://gedozudusinap.mygamesonline.org/alberto_moravia_la_romana.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/woneketelak/37536281336.pdfIn PDF document text
    • http://gumusimigogasuz.onlinewebshop.net/53638135378.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/fixuxize.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/quem_tem_que_pagar_imposto_de_renda.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/gogogefasewuzawudone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7cc1294f-5787-4d9e-9327-0843b367faac/baby_bjorn_bouncer_mesh_cover_only.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cd8006e-00f1-4db5-96ae-972299638e33/can_you_buy_a_new_remote_for_roku.pdfIn PDF document text
    • https://s3.amazonaws.com/bejokazemur/bukuku.pdfIn PDF document text
    • http://zekakodususebu.epizy.com/kexor.pdfIn PDF document text
    • http://wegatanubuguze.rf.gd/tabokiwovisuzevabogivi.pdfIn PDF document text
    • https://s3.amazonaws.com/fipijife/anaconda_movie_utorrent.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/8318058174.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/candy_crush_game_ing_install.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a960ff68-6332-4b6c-9730-2dee9a7ac125/sibajub.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/82542504250.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_off0001034a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1034A 5188 bytes
SHA-256: 056f591888f0ba12924753d5ad416c748973b28b85734b3cc5549f8aaa48138c
font_01_sfnt_off000114fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114FE 10688 bytes
SHA-256: 69814363024c0201aa409686cee98c2e954799b069a77417fe6e5fc41e45b698

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