Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e1ec0d2da4e8301…

MALICIOUS

PDF

75.9 KB Created: 2021-05-27 22:22:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: bd75d5f2effb1dc129ad54dfadb80834 SHA-1: 62ceddce38a0ab35e6e3480d9cac09fc72af62a8 SHA-256: 2e1ec0d2da4e8301a9dfba0b81fafa59e1398703ae3be66757c214ca2511011e
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://resalured.ru/123?utm_term=focus+on+ielts+foundation+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485440/normal_5fd8cac773674.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4394060/normal_5ff41a3f61554.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475209/normal_5feb45e3406b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454971/normal_60048178cdfae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413978/normal_600e22cda768f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464052/normal_5ff807d83fe97.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449777/normal_603ffcb49ef6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464070/normal_60380dfbb9b55.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488116/normal_5fcbcc49a9d90.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369773/normal_5fe229b180580.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/51dc185d-dc7b-45d8-bc2e-56422428c8bc/diferencia_entre_animales_y_humanos_para_nios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/068d14ce-c8d0-4ca0-8f6f-8bfdaeff1609/sudusikisut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97d8beaf-f909-4d79-857b-4d0ca24e8ff9/84324571163.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2ae829b-5a05-4f70-b84c-2ecfa88d6137/walter_benjamin_aura_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/663cd4db-2558-4b4d-a3ad-cc71c4c39a8e/49644631424.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9d13716-89ac-4adb-b697-0376555e62d2/98587302250.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81fba936-26b6-4037-b747-743af8b1c3ae/fedotuvujemanelosag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/085fc587-5c29-4318-93ef-ffc4fd6d5a5c/what_is_english_101a.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d989e122-a59b-4ac4-8af0-4dfd2c8f1e0d/lights_out_2013.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bad18bd9-c4d8-430d-8238-4e902b29f2c9/walmart_covid_vaccine_registration_georgia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0500a110-4138-4d5b-80e9-a96059b3a255/emergency_medicine_nurse_practitioner_jobs_florida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d116b547-dff6-473b-a3af-3c6648d7c8f5/17869728097.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d16d5b7-73c2-4c93-bd47-2d3aa8a22c1e/kadidivurifotijoro.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_off0000e9cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9CB 5228 bytes
SHA-256: 1bbadbd959238c74792aa10ed53fa96e30b90c5536c6834745ec7d72ded96ba4
font_01_sfnt_off0000fbc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBC4 10948 bytes
SHA-256: 2b294f26544b4070aa47f5639f8d3cd90ce888d5daf7ce5e26e83bd9d5e3aefc

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