Malicious PDF — malware analysis report

Static analysis result for SHA-256 d65973e6dbf7023d…

MALICIOUS

PDF

75.0 KB Created: 2021-04-22 00:47:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: f6aaf51eaeac5cdfa0751d8af99a2886 SHA-1: 748cbd931f973d6502c91970a7d9612eb943e53f SHA-256: d65973e6dbf7023dcc17f6992c5359076b139b1cbd14389a6ec8c68af47a2d4d
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, suggests a lure related to downloading content. The presence of multiple embedded URLs further supports the malicious intent of redirecting users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://dafemum.ru/strik?utm_term=panchatantra+stories+english+video+download In PDF document text
    • http://fibisazorowax.mypressonline.com/fofaxotoxebowo.pdfIn PDF document text
    • http://jerunuju.mypressonline.com/binge_eating_disorder.pdfIn PDF document text
    • http://betmoy57.com/kings_league_odyssey_guide9ja7r.pdfIn PDF document text
    • http://fabulouss.space/symmetry_worksheets_for_grade_5rp5wo.pdfIn PDF document text
    • http://muzoc.xyz/71308652008q7div.pdfIn PDF document text
    • http://eeuuurrrrr.space/dufepumusamigir5a226.pdfIn PDF document text
    • http://amorexpo.com/gimp_vs_photoshop0qhmj.pdfIn PDF document text
    • http://xtina.online/ravudatipedajemuf97s2x.pdfIn PDF document text
    • http://trikotoria.ru/devosamilevusivokav8fic.pdfIn PDF document text
    • http://gemubanabugawa.mypressonline.com/best_book_for_gate_mechanical_engineering_2020.pdfIn PDF document text
    • http://brettlockhart.com/13725526966qgrmn.pdfIn PDF document text
    • http://xejapuz.getenjoyment.net/qualitative_and_quantitative_data_analysis.pdfIn PDF document text
    • http://politach.com/the_standard_hotel_east_village_bar6am71.pdfIn PDF document text
    • http://copyright-central-media.com/football_fitness_drillsjj9ql.pdfIn PDF document text
    • http://bet-info.ru/53969678475x8c.pdfIn PDF document text
    • http://gradstroy.su/99302230420nkfyl.pdfIn PDF document text
    • http://vnatural.space/lucky_block_map_1.8xrhgh.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/jeworurowam/72054705002.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/93752502337.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/3161870502.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/29845444023.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/minavanolemafesojajobu.pdfIn PDF document text
    • http://famekuputoda.myartsonline.com/vixudagipexo.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/blackberry_9900_software_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/bahubali_1_full_movie_utorrent.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/mutaciones_genticas_brca1_y_brca2.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_off0000e40f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE40F 5356 bytes
SHA-256: c2a3645eec415e80f8f61541ce9afacec40f965dc8e4f46862db58669dc8a688
font_01_sfnt_off0000f64f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF64F 11664 bytes
SHA-256: 32ac69fd11dbae8a0752a370c908cd99c46e22293cf1a3bd4ed9d898891678e6

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