Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f1c141c33012a02…

MALICIOUS

PDF

66.0 KB Created: 2020-11-20 09:09:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e730271f15e9349129c6c80f4a946686 SHA-1: 91a546f3b4c9708d2afcb866e1c96af051df620c SHA-256: 0f1c141c33012a0253d43729f8dc8f2c8bd8f9accbac0e597de32d6b2a596be6
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 0.9998

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://trafficel.ru/strik?utm_term=advanced+brazilian+jiu+jitsu+techniques+pdf PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/sure_yasin_urdu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82603c32-678b-4029-9758-4122d279e115/30357210804.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21a34007-7e57-4418-bd63-f4e94ef92a80/pathfinder_vitalist_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ff21ed7-50af-4d09-8196-cf32049b3fb5/62683570245.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a536aad-112b-4fea-9031-91fa0a2a619f/82987856697.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99f1d3c3-0919-428f-b9aa-52c8a76b66e2/leleguzowowutopuse.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/lokob.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/40472615553.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/710b53dd-9b2f-49dc-8f26-acdc769cdaf7/10916624869.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/akuntansi_keuangan_menengah_berbasis_psak_buku_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78882306-940a-42d7-9357-2544cb3c8050/94219839944.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfb5d589-d2da-4263-ae04-473c3e60a082/13393903731.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/lomimebiwuzip.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/giwuduwewugedupunitaner.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/lanzamiento_de_martillo_resumen.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/speed_of_propagation_meaning.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_off0000c21b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC21B 5684 bytes
SHA-256: 6a50cfadcf86c6091171855a6c8c9ad75f133f8c7962d9238d2f5bc3befe23de
font_01_sfnt_off0000d578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD578 11088 bytes
SHA-256: 2e9619d712d3766623e98bd37967619d618f3710da73e1555d5f362ed0ec5dcc

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