Malicious PDF — malware analysis report

Static analysis result for SHA-256 774d4fac4c78ace8…

MALICIOUS

PDF

84.8 KB Created: 2021-03-18 16:48:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 7a73ef16cf68e95f629f715f9ee294f8 SHA-1: 5f88e4307fe5ba1bb6ad2c4f0f58e4645be7c024 SHA-256: 774d4fac4c78ace8fa5fe37851c9a274628c8d99a4067399ec99d87bb4c6acd7
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 0.9985

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://bologen.ru/strik?utm_term=why+will+my+xbox+360+not+connect+to+xbox+live PDF link annotation
    • https://cdn.sqhk.co/dijabidasu/Cwjagcu/26969938044.pdfIn PDF document text
    • https://cdn.sqhk.co/dimasemi/b9hbjie/sivuka.pdfIn PDF document text
    • https://cdn.sqhk.co/wewotiwalote/ibtidzh/40855265005.pdfIn PDF document text
    • https://cdn.sqhk.co/sezepemanu/jcP8pgj/65747938411.pdfIn PDF document text
    • https://cdn.sqhk.co/bozogekeji/jeqwggR/old_point_national_bank_mortgage_rates.pdfIn PDF document text
    • https://cdn.sqhk.co/pujixefan/kVEjjic/65972839427.pdfIn PDF document text
    • https://cdn.sqhk.co/debefuki/cr4zkeU/panda_pop_badboon_blitz_level_5_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/boxewemutox/kEWpw1P/sevume.pdfIn PDF document text
    • https://cdn.sqhk.co/xufojidaju/eOG3Cgf/joy_news_live_streaming_today.pdfIn PDF document text
    • https://cdn.sqhk.co/mugolino/egjhhhg/49047405148.pdfIn PDF document text
    • https://cdn.sqhk.co/gixedomawa/htIhjuq/free_baby_stuff_in_usa.pdfIn PDF document text
    • https://cdn.sqhk.co/dogutadova/kUgfgdQ/62341712962.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/1pjhKvJ/dufufowidafix.pdfIn PDF document text
    • https://cdn.sqhk.co/wosipuvetot/jjphhjh/vienna_pass_attractions_map.pdfIn PDF document text
    • https://cdn.sqhk.co/rozesivotix/hjgg7aE/facebook_app_dark_mode_android_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/kuretunaba/bjj7ids/any_long_term_side_effects_of_metformin.pdfIn PDF document text
    • https://cdn.sqhk.co/wezopexa/BQdgfJi/windows_8._1_usb_boot_software.pdfIn PDF document text
    • https://cdn.sqhk.co/vuritukupus/1bVoW8n/32854506089.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/4e6cb318-2954-40c3-8cd1-764c4d621dee/roi_na_heart_touching_love_story_mp3_song_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff5a3c40-ab2f-49d2-9477-552314fc9e7f/60752678588.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/dementia_treatment_nice_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/runuzitexokol/32244700948.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be7428f4-dee7-48c1-8f24-ec781c34627e/nikon_35mm_f_1.8_g_af-s_dx_sample_photos.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ead9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD9 5280 bytes
SHA-256: bebd2fef2baf0e38d99bcca377cd7d19d08e64f80ae9b2838cdb57ac95d6f369
font_01_sfnt_off0000fcbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBC 10768 bytes
SHA-256: d478022d6e5bf81d083184d003ecf328943cf329e4ca79079892d184e7cf41ed
font_02_sfnt_off000121d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121D5 16140 bytes
SHA-256: 159427b32ed66bfbde86def5e6c2992bde67dfb25400c4000a37c9b59b949b61
font_03_sfnt_off000136d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136D1 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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