Malicious PDF — malware analysis report

Static analysis result for SHA-256 24a43a8349dc7ddf…

MALICIOUS

PDF

74.2 KB Created: 2021-01-19 06:00:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: cf17fb83b882c5a892a5930de698c384 SHA-1: aaf1dca99db948f824cc7c0f539ba5793d4c362c SHA-256: 24a43a8349dc7ddf8ba315055b34ef0fd7c0e5efec469acfe5a72b9162e3be03
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that directs users to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a 'Fad diet worksheet'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

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://trafffe.ru/123?utm_term=fad+diet+worksheet PDF link annotation
    • https://cdn.sqhk.co/natefisaka/3Kx7jiS/pisope.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426410/normal_5f9cf62ef3a4b.pdfIn PDF document text
    • https://site-1176165.mozfiles.com/files/1176165/20818737270.pdfIn PDF document text
    • https://cdn.sqhk.co/muruwake/hfhaQXP/pioneer_arc_app_android_funktioniert_nicht.pdfIn PDF document text
    • https://site-1244465.mozfiles.com/files/1244465/index_excel_sheet.pdfIn PDF document text
    • https://cdn.sqhk.co/nunemiziku/cxigjj0/41385142275.pdfIn PDF document text
    • https://cdn.sqhk.co/xovujiroveg/ahgq7gH/classic_wood_block_puzzle_online.pdfIn PDF document text
    • https://cdn.sqhk.co/dixejetafap/fHny0y8/jazuzurazidanejokuwafi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/56001279385.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/sukakogemelu.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/chevy_repair_manuals_online_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/soft_construction_with_boiled_beans_explained.pdfIn PDF document text
    • http://zuzofigub.rf.gd/android_secret_dialer_codes_list.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/48793223951.pdfIn PDF document text
    • http://dizutobasuxolom.epizy.com/zirov.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/79433445942.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/voicemail_settings_android.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/emirates_cabin_crew_training_manual.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_off0000e705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE705 4992 bytes
SHA-256: b485d164a1b74fb08b6fe1a0093d2901db2e768f5fdfa62f43d27a00b5511684
font_01_sfnt_off0000f811.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF811 10532 bytes
SHA-256: b5a0970ca8e04c08976856caf7ac86211f4ab65942d5a718e95adb3f8042fec8

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