Malicious PDF — malware analysis report

Static analysis result for SHA-256 3afcb48eaa91eec2…

MALICIOUS

PDF

81.2 KB Created: 2021-03-08 14:21:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d30b111e2cf992ea4244e4e4ebbf72ae SHA-1: 6565f1b2a72184efd6caa6f1d312eab8f7d91096 SHA-256: 3afcb48eaa91eec2df2bb2b950a8888b585151c3f9560756abe6cbf11678e41c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/wix?keyword=house+make+ready+checklist PDF link annotation
    • https://cdn.sqhk.co/baxorurifina/ujhkfid/star_wars_the_old_republic_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/forexajepusa/fibwxgj/kinetodetufaserukege.pdfIn PDF document text
    • https://cdn.sqhk.co/daxegajok/4ibgjjf/best_free_sms_forwarding_app_android_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/zegofurop/bjigeih/all_browser_in_one_application.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/244a9800-62f5-4dd2-9a62-839ad6c0429d/how_to_use_line_of_best_fit_on_desmos.pdfIn PDF document text
    • http://sepinolet.epizy.com/zesiminuxopunavo.pdfIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/darukezaxozefirexarusuv.pdfIn PDF document text
    • http://pexomoduna.rf.gd/38909721208.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a26ada6-5556-4743-b602-85a3fbef0e7e/the_alienist_angel_of_darkness_plot_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/mibukoja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/473febe5-5f0a-431d-8095-9752b866e348/paintball_guns_walmart.ca.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/51576073633.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95953a25-d4f7-4359-9b22-08d7205ee79f/lesser_key_of_solomon_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e1b23fa-738a-4ba3-80e1-b17703fea599/koxekojulogofefegobi.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/78867466141.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/new_tamil_movies_2019_in_tamilrockers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48418ca1-1c33-4aa4-828a-a4984d940916/ge_spectra_gas_oven_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/331012ef-9c4b-4eea-93a9-f420854b9bcb/zepuxova.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/burma_map.pdfIn PDF document text
    • https://s3.amazonaws.com/zulezov/nulafifimenesebum.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_off0001007b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007B 5308 bytes
SHA-256: ab9e31b4f2713f188d10b5a9b2e9a8d7d225d4f8cc5f88a27af71ba798a405ce
font_01_sfnt_off0001125d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1125D 10808 bytes
SHA-256: f0bdac0d99b80a4defd15a1ce1760c65adb098f136ca178a6e42d4df4509b628

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