Malicious PDF — malware analysis report

Static analysis result for SHA-256 6194015d5939e2a1…

MALICIOUS

PDF

80.1 KB Created: 2021-05-23 13:01:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 612549e0025774eab0a0258cda6b8492 SHA-1: b1d387f246850832bf7f64228b8493b9836fdd23 SHA-256: 6194015d5939e2a1c4481b035009a8523faa5e8f18b0ef7ffb6872fbc5625ab0
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 0.9991

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://baarspo.ru/strik?utm_term=power+efficiency+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4478131/normal_60504db3b36bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375086/normal_60084fbecf283.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382773/normal_600c3c9cca210.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444884/normal_6021c4c389b92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422914/normal_6004c0f4b5259.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403415/normal_5ffc2b0ef147e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393904/normal_602ee57112883.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408482/normal_6010a978ab6c5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464739/normal_6005ea7cb4084.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://uploads.strikinglycdn.com/files/cb826896-67d7-46ef-bea4-b0df17dca642/42568228956.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/forklift_training_course_in_sri_lanka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d602d63d-a325-48bd-80d4-1c2fdf9b6830/stress_relief_activities.pdfIn PDF document text
    • https://s3.amazonaws.com/zalisujezajaje/7955352977.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd09297a-89f7-40dc-b6cf-02ba327456c8/64908357242.pdfIn PDF document text
    • https://s3.amazonaws.com/tixeligufokup/chennai_express_tamil_songs_kuttyweb.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/wiputasovigerux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db7e7a27-d0ed-4f39-8479-5d72e2a2556b/75367956444.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/danusojevemidax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/009f9507-2983-4213-ad45-de96d90fdcc6/soluciones_isotonicas_hipertonicas_hipotonicas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/282768db-7cdd-43dc-80d0-b31459eb7c1f/83251016403.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/zodipenobes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3807ffd4-17f1-4fbe-9e48-d6174fe1fbec/nortel_meridian_m3903_phone_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e968043-c607-4ba8-a30d-4f31cbff52ae/77037078956.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_off0000f025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF025 4764 bytes
SHA-256: a2bdffa4fa19e5671b5c8f081ad9bc01459ca158aeb04ad30b4e6088ac0ed1a3
font_01_sfnt_off0001006f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1006F 10804 bytes
SHA-256: f35794401979f1bb7ea40f1a035c97f5cb0c158aa30a4f97e39416327c35e6b8
font_02_sfnt_off000124f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124F1 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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