Malicious PDF — malware analysis report

Static analysis result for SHA-256 24743f87261692d4…

MALICIOUS

PDF

80.5 KB Created: 2021-03-18 23:09:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: af6b17f9e101fcfb8c514734c3f21696 SHA-1: 572cd5050a3bf5367aeecaf5552665073813a473 SHA-256: 24743f87261692d49093a93f9cefee1f83a748b2111e127ae943f752a62d12b4
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 0.9996

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://jottigo.ru/123?utm_term=architectural+review+committee+forms PDF link annotation
    • https://cdn.sqhk.co/davusegeb/jdhhwRc/ludiga.pdfIn PDF document text
    • http://pusikoxelumide.iblogger.org/naviance_brag_sheet_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/barugogip/1buiiTF/16173375423.pdfIn PDF document text
    • https://cdn.sqhk.co/keropolor/jgZwjhg/sdge_careers_san_diego.pdfIn PDF document text
    • https://cdn.sqhk.co/lekusovu/icOFjBv/panuzewop.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/4a579600-1d2a-43a9-bc33-16ba66acf112/what_is_the_best_4_qt_slow_cooker.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97fcd7a8-a052-4d65-9bcb-3efd814726a8/logitech_k520_keys_not_working.pdfIn PDF document text
    • http://delupujak.epizy.com/69518562221.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97570ec4-32d8-44e0-a7eb-5062e69ded7f/foxejigepiwufifosaniduzu.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/biostar_hi_fi_a70u3p_drivers_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0db08c54-c695-4c3b-8a02-a54ff4149c25/97410758868.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/sebuzufo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe3d69a2-f982-4f27-af61-fc49c3d09643/scott_joplin_the_entertainer_easy_piano_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03bade65-3eec-4099-b5d4-041ae6dd1b31/integral_calculus_class_12.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/420a625c-c3a1-4ec4-9a4a-1f759e1d4700/nibunazovokisawinesika.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbb28864-6d4d-4929-920b-ae83ab401954/conflict_management_in_the_workplace.pdfIn PDF document text
    • https://s3.amazonaws.com/luropiw/rofiduxepa.pdfIn PDF document text
    • http://wujasulo.epizy.com/29330467489.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4cd2292-a2e3-43a6-8f90-b585e115a492/compare_and_contrast_essay_topics_for_elementary_students.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b65c7869-41c1-46db-8f76-35d74e446cb9/34922452745.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c02cde17-5394-4ca0-bf95-59db1d63a63d/79628451166.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB3 5040 bytes
SHA-256: bf97e6fef84a6ebb9252eb9c28e27ffebf345b12473dc702e4e47fd2f8e457fe
font_01_sfnt_off0000feec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEEC 11692 bytes
SHA-256: 094c69f01577b2985d1fb89134bbd7712ebab214a603747d32d6065b44439bc9
font_02_sfnt_off00012696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12696 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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