Malicious PDF — malware analysis report

Static analysis result for SHA-256 0631e27e2497b694…

MALICIOUS

PDF

91.0 KB Created: 2021-04-11 05:20:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22411ac046a436b8b74f18cfdfc9538b SHA-1: 3417b35d0d756a75209e415999d06b6e66ac8557 SHA-256: 0631e27e2497b694f98de4f304c55d1aa224229f37528509b4feb762ab0da824
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be a lure related to a product search, suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://ponafet.ru/strik?utm_term=afterglow+headset+lvl+3+mute
    • http://game-pro.xyz/sat_books_to_studyi5kc9.pdf
    • https://naguruzitu.weebly.com/uploads/1/3/4/3/134369267/b18642.pdf
    • http://stavki.link/favuxalekumumuzitevabini0fqdh.pdf
    • http://goodsun.fun/simple_promissory_note_template_wordm8d7h.pdf
    • https://cdn-cms.f-static.net/uploads/4476930/normal_6041959dea0cf.pdf
    • http://yandex-delivery.cc/mcculloch_mac_3200_chainsaw_for_salege5wy.pdf
    • https://vapurexox.weebly.com/uploads/1/3/4/8/134865026/175366.pdf
    • http://shoop-fl.ru/how_to_use_gazelle_edgel9vo5.pdf
    • http://fastcreditreport.info/54458732673lin88.pdf
    • https://cdn-cms.f-static.net/uploads/4482869/normal_6025f9a496b61.pdf
    • https://piroveda.weebly.com/uploads/1/3/2/7/132740505/zivobafaviniz-nonosus-xeroxi-dikokomu.pdf
    • https://wisapemewe.weebly.com/uploads/1/3/4/7/134713478/6210176.pdf
    • http://alexandreablog.com/93488346198yhfda.pdf
    • http://specrazreshenie.com/how_to_play_blues_scale_on_bass_guitar3nkbj.pdf
    • http://labiosdewonda.com/soduwigubutosunuroroxapud2j7b.pdf
    • http://appletopshop.ru/tabela_de_preos_de_carros_populares1x1gb.pdf
    • https://cdn-cms.f-static.net/uploads/4448345/normal_601d5b8a5358a.pdf
    • http://instahelpforbusiness.com/harry_potter_and_the_half_blood_prince_chapter_25_lingualeo54n25.pdf
    • https://cdn-cms.f-static.net/uploads/4500692/normal_5fe98591a819a.pdf
    • http://podcard2020.site/65283460922cdbcb.pdf
    • http://wwbook.org/jumpsuit_women_amazonypfwr.pdf
    • http://indohealth365.online/sad_ringtone_audio_song_downloadcsune.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/nevowimo/how_to_use_exercise_bands_for_beginners.pdf
    • https://s3.amazonaws.com/saziwijaxodav/optavia_vegetarian_guide.pdf
    • https://s3.amazonaws.com/satudifin/what_is_weight_limit_for_car_seat.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_off00011eb8.bin
cc97444fe1fa1ee11952b2f2ee620947650ee39b569662f9c83b184da392d2d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11EB8 5628 bytes
font_01_sfnt_off000131cb.bin
179de7e61593a89657c035ece0b1ba6e146819a7adbf4f0d7a09388854954965		 pdf-font-stream PDF embedded font (sfnt) at offset 0x131CB 13856 bytes

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