Malicious PDF — malware analysis report

Static analysis result for SHA-256 76df42ddb91da657…

MALICIOUS

PDF

67.5 KB Created: 2021-03-01 06:10:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 90f0398aa2acd50c52a24fdab8117219 SHA-1: 4b38a2967859541822fde2904afec31ac82d7269 SHA-256: 76df42ddb91da6575ced3f2223bef4c8a8487fb6799a3d89187f84792b8e01d8
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, contains references to appliance specifications, suggesting a lure to entice users to click the malicious link.

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://dugedepap.ru/strik?utm_term=maytag+gemini+double+oven+specs PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4401989/normal_5ffb7727e449b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408871/normal_601481de79d02.pdfIn PDF document text
    • https://cdn.sqhk.co/rogumabutur/iiifge6/hidden_objects_fairy_tale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489587/normal_5fe4821ae7a8d.pdfIn PDF document text
    • https://cdn.sqhk.co/kanojasav/hiIXksq/bezage.pdfIn PDF document text
    • https://cdn.sqhk.co/vaxarogajib/ih3zHgf/cop_duty_police_car_simulator_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491445/normal_6027ee7e9c4b6.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/thijhgX/94784537896.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465024/normal_5fe475d62f164.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/forupokisip/56343224708.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/54643062229.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/hb_fuller_raw_material_report.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/babimisijuriv.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/siwosetanokepaluwogox.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/alien_shooter_apk_uptodown.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/vawajupapoxirivega.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/accords_guitare_basse_4_cordes.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_off0000c8cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8CB 5604 bytes
SHA-256: 45610102ab65d815936f96a5cc545d92af69e42a5d4041d6bbaef8452e463ce5
font_01_sfnt_off0000dbe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE6 10892 bytes
SHA-256: 57fbeb98c22e852a9a6dc092f2f33e82269472a5d60a60e2eec4ccac55a43468

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