Malicious PDF — malware analysis report

Static analysis result for SHA-256 605ca3bf441121e0…

MALICIOUS

PDF

71.8 KB Created: 2021-02-08 17:22:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 466bc52508ece32da2354718fe590272 SHA-1: 3685aa479a82fc4c9aa37e996a4fdfd2a42688c9 SHA-256: 605ca3bf441121e0de0f1d7d486a808d952de96ab7651dad4667514908d8aed0
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains references to 'information technology in shipping industry', likely a lure to direct users to malicious URLs. The presence of embedded URLs, including 'https://baarspo.ru/aws?utm_term=role+of+information+technology+in+shipping+industry', strongly suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/aws?utm_term=role+of+information+technology+in+shipping+industry PDF link annotation
    • http://decideyouself.fun/74147590212uracq.pdfIn PDF document text
    • https://cdn.sqhk.co/jisepozidis/oibBXii/fireboy_and_watergirl_forest_temple_primary_games.pdfIn PDF document text
    • http://evromotors.net/18732163280v29sx.pdfIn PDF document text
    • https://tonavamajarow.weebly.com/uploads/1/3/4/6/134694337/xodupetami.pdfIn PDF document text
    • http://moneymaya.site/chicken_curry_hd_images_freee8j4k.pdfIn PDF document text
    • https://lasaputuvawejep.weebly.com/uploads/1/3/5/3/135314153/f152f7e79.pdfIn PDF document text
    • https://cdn.sqhk.co/samigimas/jdwlhhU/tiger_shroff_all_songs_list.pdfIn PDF document text
    • https://volilisaxox.weebly.com/uploads/1/3/1/4/131453747/9699813.pdfIn PDF document text
    • https://jabuvevakeg.weebly.com/uploads/1/3/4/6/134685488/679850.pdfIn PDF document text
    • http://libertinemodels.com/68075091860kn942.pdfIn PDF document text
    • http://pressit.space/46644682032cg1gz.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/runuzitexokol/59105140083.pdfIn PDF document text
    • http://gerekuvuburase.epizy.com/arduino_matrice_led_8x8_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/gifisat.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/64220259040.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/aadhaar_card_documents.pdfIn PDF document text
    • http://balesalefune.epizy.com/maai_teri_chunariya_song_ringtone_free.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_off0000dbaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBAA 5680 bytes
SHA-256: a7a0f94c21e087141ca2f96ebc57f8c8ef7f6839b4d2f4ac88b25d8f4fa82c22
font_01_sfnt_off0000eee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE3 10084 bytes
SHA-256: 955ef328956e63c43cf6e67f3dd52cbaf46184c7e565cb1ddaaaeb0f453d4c90

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