Malicious PDF — malware analysis report

Static analysis result for SHA-256 44216a71b1b57e62…

MALICIOUS

PDF

75.9 KB Created: 2021-03-08 23:26:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4209c96c5480415b1172f66bb291fd27 SHA-1: e8cad3917afd5c6a72302da2987985cd04abfb68 SHA-256: 44216a71b1b57e62282d8e21e56b6985979cfb13d493bca06c6b409ab147c67a
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://xezojetit.ru/wix?keyword=joker+movie+free+download+4k PDF link annotation
    • https://cdn.sqhk.co/nogegamapagi/ha4hjge/download_game_death_invasion_survival_mod_money.pdfIn PDF document text
    • https://cdn.sqhk.co/gufezima/gdhhjdY/management_skills_books.pdfIn PDF document text
    • https://cdn.sqhk.co/dojagomudek/igjG6hh/29321342868.pdfIn PDF document text
    • https://cdn.sqhk.co/datawafag/haia2eC/battlelands_royale_mod_apk_unlimited_money_latest_version.pdfIn PDF document text
    • https://cdn.sqhk.co/dufimogemeka/fRihnAM/palevaxigu.pdfIn PDF document text
    • https://cdn.sqhk.co/doxelatofon/ogfidai/95378250547.pdfIn PDF document text
    • https://cdn.sqhk.co/xetokive/ihPigha/how_to_make_a_bowling_pin_balloon_column.pdfIn PDF document text
    • https://cdn.sqhk.co/dunafafaxen/dt7ij9A/blades_of_brim_mod_2._7_6.pdfIn PDF document text
    • https://cdn.sqhk.co/givogaduta/zdi1gc1/48170584841.pdfIn PDF document text
    • https://cdn.sqhk.co/waladoved/jeEb1ZC/56537948131.pdfIn PDF document text
    • http://acupofjacob.com/67246909452i1ibl.pdfIn PDF document text
    • https://cdn.sqhk.co/wifukatar/iaghAoh/card_collection_box.pdfIn PDF document text
    • https://cdn.sqhk.co/fisoxinizo/WSrAijg/oscar_the_grouch_quotes_about_trash.pdfIn PDF document text
    • https://cdn.sqhk.co/letaziseb/ghjcmgj/midumutim.pdfIn PDF document text
    • https://cdn.sqhk.co/dexizajifu/bCgphj1/2nd_grade_thanksgiving_reading_comprehension_worksheets.pdfIn PDF document text
    • http://successinyourlif.website/38003892645p035q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e88afb6-ea49-4c2f-af23-729edd423c37/how_long_does_royal_navy_training_last.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b56a063-4dbb-41db-81c2-707419b87ebb/how_long_rav4_battery_last.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d93dbeb-bb46-4cf1-b587-611ad28d3207/the_norton_shakespeare_third_edition_vol._one-volume.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_off0000ed9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED9F 5168 bytes
SHA-256: 94cd1ce199ce1bcef8c843980830fec72e009e241092e1c60f6fb13681bb0c40
font_01_sfnt_off0000ff3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF3E 10368 bytes
SHA-256: b2bf133f744a2b07d804b8efc2720afdac608615e9b9c1914c1024543c2c1d5a

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