Malicious PDF — malware analysis report

Static analysis result for SHA-256 660767f7b638fa59…

MALICIOUS

PDF

70.2 KB Created: 2021-03-08 05:03:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: f43bc8aff4a306acb809bc9978dc9e2a SHA-1: 48dc60d91d6bb5ecd343478e46795f5821706917 SHA-256: 660767f7b638fa592047495f8bcb378513bb811c9ec04bfa2b55f3467f757a07
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that directs the user to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to exploit users by presenting a deceptive search result.

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://lozipotod.ru/strik?utm_term=how+many+orbitals+are+in+4f PDF link annotation
    • http://gowanenutik.mypressonline.com/69435516545.pdfIn PDF document text
    • http://fanisore.sportsontheweb.net/samsung_grand_prime_motherboard_price_in_india.pdfIn PDF document text
    • https://cdn.sqhk.co/fasegibuniz/idxSiaZ/96816360393.pdfIn PDF document text
    • http://revodegasiger.sportsontheweb.net/how_to_reset_genie_garage_door_opener_keypad.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/4OhbihX/38363950463.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374189/normal_600c0c7b0e63d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445880/normal_5ffaba01be147.pdfIn PDF document text
    • https://cdn.sqhk.co/perajomipe/Z3jgCJN/82863348551.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415070/normal_60176fd264de7.pdfIn PDF document text
    • https://cdn.sqhk.co/solijisivono/wjhBGgg/my_hubby_memes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461207/normal_6039a03edda8e.pdfIn PDF document text
    • http://nunupefaz.iblogger.org/bokira.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://s3.amazonaws.com/minabiwa/internship_certificate_template_india.pdfIn PDF document text
    • http://modudupudabu.rf.gd/6925437277.pdfIn PDF document text
    • http://fakozavovenabe.rf.gd/28409581486.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/luxonomomugazepobi.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/how_to_clean_yamaha_outboard_carburetor.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/72289131011.pdfIn PDF document text
    • https://s3.amazonaws.com/nopomewegobij/addicted_movie_720p.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_off0000c8de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8DE 5084 bytes
SHA-256: 2a9810c6539aca5218e9173ecfbe3801182e76458dc129878f7622f52696a141
font_01_sfnt_off0000da19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA19 10396 bytes
SHA-256: ce5d5c13198978a5044ed65549247e8bfd51481948c46597e9ee9736b5681bf9
font_02_sfnt_off0000fd86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD86 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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