Malicious PDF — malware analysis report

Static analysis result for SHA-256 04b08dca7be28a10…

MALICIOUS

PDF

68.0 KB Created: 2020-12-10 18:40:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 1e67f6d2ec895655a3e4d4bbfa44c302 SHA-1: d2e630aea4d5cff45ba562a0c0dc23d11122952d SHA-256: 04b08dca7be28a10c5172af59079438940df79838f37b3cb6aec48da59d835b8
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://traffine.ru/123?utm_term=are+review+manual+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444869/normal_5f9d80c49c069.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375357/normal_5f9205c10faf5.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/bajapovogam/photoshop_cs6_camera_raw_update.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc59462c6229360ecccb6a5/t/5fc90e60a7528e11dbb8c74c/1607011939456/kim_kardashian_hollywood_game_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/jefobibugojatinowo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe26f8f3de5e49b52db0ba/1606297337088/29978522767.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a138704b-0279-4080-96e7-ad0a23492bd7/busugebuvinufunesejoso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/def8adfc-557a-436c-8d63-564261f87364/14644794604.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff4ed493-1fa3-4570-b006-c31c71fc851c/59137095044.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/39621244480.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc187916609fd0ee795caa4/t/5fc4706dbc819f1cf466fb3e/1606709358348/czech_last_names_starting_with_s.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/calendario_2019_mexico_oficial.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/maryland_state_motto_and_nickname.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ea1fa8793968640865e0/t/5fc8527643b29e7a5af13645/1606963830576/super_mario_kart_double_dash_switch.pdfIn PDF document text
    • https://s3.amazonaws.com/jivala/ghost_recon_breakpoint_game_informer_review.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_off0000d05f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD05F 5148 bytes
SHA-256: 9c1c6e5d259a5815dad81e3a27e15b3364fdef48a0d35f62990a2b750c95a652
font_01_sfnt_off0000e1df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1DF 9692 bytes
SHA-256: e0abe78e2799a3de3c7bf293a13396502ce7653d397fcdf6a4fe21e67b9fb352

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