Malicious PDF — malware analysis report

Static analysis result for SHA-256 94d512eb530eb538…

MALICIOUS

PDF

76.0 KB Created: 2021-03-30 00:15:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 120d9fb404269bf84f826379cf208a48 SHA-1: 28c9e5b65a0d112c1c651c35bf53ff16458e7632 SHA-256: 94d512eb530eb538cf0549b11a04f973cc2ff9ccc6b1e282e47f4f4b9f18fa2a
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users 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 URI heuristic suggest an attempt to redirect the user to a malicious site, likely as part of a phishing campaign.

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://pelibifir.ru/strik?utm_term=where+to+donate+used+furniture+in+durham+region
    • https://cdn.sqhk.co/zufuxirap/jd5idij/free_survival_island_games_online_no_download.pdf
    • https://cdn.sqhk.co/nufesewepi/Pgjjgid/transference_movie_wiki.pdf
    • https://cdn.sqhk.co/busanurutar/ihOgZjb/54960181970.pdf
    • http://cybety.xyz/christmas_song_lyrics_bookkb1fr.pdf
    • https://cdn.sqhk.co/dobopejig/UigBp4s/green_mucus_poop_pregnant.pdf
    • https://cdn-cms.f-static.net/uploads/4493589/normal_6028a71d2f8fc.pdf
    • http://ralugugifoxatir.scienceontheweb.net/is_the_mandalorian_weekly_or_monthly.pdf
    • https://cdn-cms.f-static.net/uploads/4474176/normal_600a81eb294f7.pdf
    • https://cdn-cms.f-static.net/uploads/4492573/normal_5fe8037864445.pdf
    • https://cdn.sqhk.co/manuguwe/vheMhjv/40948862238.pdf
    • http://hellovendi.com/susixem0q16.pdf
    • http://vazawujuzu.sportsontheweb.net/honda_eu2000i_carburetor_bowl_gasket.pdf
    • http://peteferix.mypressonline.com/sotulovijikovinizum.pdf
    • http://supermagazforsale1.xyz/the_americans_textbook27f94.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://koxolavomuzo.myartsonline.com/nezatiges.pdf
    • https://uploads.strikinglycdn.com/files/2cd8324a-2dfc-4f9c-9425-ff0bab362f71/danasokomumumi.pdf
    • http://davofunup.onlinewebshop.net/bizosap.pdf
    • https://uploads.strikinglycdn.com/files/dac1b765-de85-4ee3-9e33-26e7636e61a3/soccer_resistance_band_exercises.pdf
    • https://uploads.strikinglycdn.com/files/db97a89b-1a02-4031-a8ec-4bd03f2c4133/how_to_write_a_voided_blank_check.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e9f1.bin
e3fc9812575bd5a1e51fff6e6c0ec7f1c2c49dc2abc15499232e3dc18d3577d9
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F1 5304 bytes
font_01_sfnt_off0000fbdf.bin
07895b5e834231f9c050f24c89691dbeeff13c1bf5edc43fbd3041b25f92dcb9
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBDF 10856 bytes