Malicious PDF — malware analysis report

Static analysis result for SHA-256 c68224da8c87802b…

MALICIOUS

PDF

79.0 KB Created: 2021-04-08 03:33:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: df36e860f37948ec9b6f5ea5a76e131f SHA-1: d8679f18893cfd3d6483d10fd8c707fadf9139f5 SHA-256: c68224da8c87802ba27fae62e63ccb50a637921fa2c2d7fcfa4040defd477e19
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, 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 query, suggesting a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wb?keyword=what%20kind%20of%20battery%20does%20a%20nixon%2051-30%20use PDF link annotation
    • http://towufato.mywebcommunity.org/24871612448.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379842/normal_5ffc6512bce78.pdfIn PDF document text
    • http://lagidonak.mygamesonline.org/criminal_justice_system_download.pdfIn PDF document text
    • http://sentytld.online/is_game_of_thrones_based_on_booksvyk4s.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421341/normal_5fd7156d1a9f7.pdfIn PDF document text
    • http://bibopasaxuvibu.mypressonline.com/body_parts_exercises_printable.pdfIn PDF document text
    • http://asta-stroy.ru/zaxeboxudelobawomowapamade0an5.pdfIn PDF document text
    • http://vedice.ru/tizewipakumobezdgz0s.pdfIn PDF document text
    • http://fabermanufacture.ru/ball_resurrection_apk_modx13vt.pdfIn PDF document text
    • http://gepokupaburorew.mywebcommunity.org/book_of_mormon_piano_sheet_music.pdfIn PDF document text
    • http://myimperfectmomlife.com/volefudasinulisolxurn.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/jidosatikim/video_mp4_betrayer_bendera_kuning.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/hodder_edexcel_igcse_maths_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/how_to_update_address_on_drivers_licence.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/what_is_the_meaning_of_five_elements_of_drama.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38c62d6a-d904-4c0c-8655-a96111b4bab4/cuanto_es_3_metros_en_milimetros.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2adb9fb2-a048-4760-a382-7f3a335e00c6/como_aprender_ingles_rapido_en_casa_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/26238356760.pdfIn PDF document text
    • https://s3.amazonaws.com/sogovekevi/xariwozipikexeremujigo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aaf5c80e-7495-4192-a90e-cafff71240ce/breville_juice_fountain_cold_plus_video.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/kediwevur.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/missing_411_movie_wiki.pdfIn PDF document text
    • https://s3.amazonaws.com/donukadizolin/what_is_the_most_hardest_engineering_degree.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e31e5fd1-586f-4b79-8b86-9b3ce125bce9/ukulele_chord_melody_solos.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/badrinath_malayalam_dubbed_full_movie_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c458824d-75e6-4b7e-9172-bb5fb7bd12a1/kewajivaj.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_off0000f306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF306 5864 bytes
SHA-256: 6b733d706d2e7e57c6124c57291a66c2da8edb605d4ea87a1fb48ba7707e81e3
font_01_sfnt_off00010720.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10720 11488 bytes
SHA-256: 400897af48c938d32f35e78a03c2f8f1445fb33bf2b45e1c6b737f45893d7722

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