Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2beabf3a27bb1c9…

MALICIOUS

PDF

79.1 KB Created: 2020-12-30 23:43:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f9f48b9afaa4ebb350505c7825b10229 SHA-1: dcfc713ef63a2c3b0873ace9dfbd01b610124aa3 SHA-256: b2beabf3a27bb1c957f2f544617186c9e4cdfc41c276b487980c59750bdb6ce8
154 Risk Score

Malware Insights

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

The file was detected as malicious by multiple heuristics, including a critical alert for a PDF redirecting to known malicious infrastructure. The embedded URL 'https://traffmen.ru/strik?utm_term=just+2+pics+level+102' is a strong indicator of a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and the nature of the redirect suggest it's designed to lure users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffmen.ru/strik?utm_term=just+2+pics+level+102
    • https://cdn.sqhk.co/ditetona/FijU6gg/best_police_chase_games_for_android.pdf
    • https://cdn.sqhk.co/birenejar/icHjcjd/facebook_lite_download_free_install_for_pc.pdf
    • https://cdn.sqhk.co/xuxozowaki/aihYZhb/v_moda_crossfade_wireless_manual.pdf
    • https://cdn.sqhk.co/vakiduju/xHjjaVV/artillery_meaning_in_malayalam.pdf
    • https://cdn.sqhk.co/pofevadamem/QIxMkhh/lokicraft_download_in_iphone.pdf
    • https://cdn.sqhk.co/jobiwokojo/gd7Cgi5/cake_recipes_easy_to_make_at_home.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/113bf2b5-920a-43f4-9124-fee642cb3b2f/5307985891.pdf
    • https://s3.amazonaws.com/sefukirexuwekij/75404046894.pdf
    • https://uploads.strikinglycdn.com/files/05bced0c-c19f-4475-9e68-4474cb594f38/the_mouse_and_the_motorcycle_book.pdf
    • https://uploads.strikinglycdn.com/files/e198eaa1-4497-4582-84cd-db390ff87fc0/kudizemuvipepiwixikowe.pdf
    • https://s3.amazonaws.com/fatisake/96988019312.pdf
    • https://uploads.strikinglycdn.com/files/dba59306-9f4e-45e8-84cc-f75c08b9a749/qbase_anaesthesia.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d726.bin
aad7453c26df82e4f406853217d1fa18855567e044230662e8319f04fa798c51		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD726 4660 bytes
font_01_sfnt_off0000e722.bin
af36fc4513c2fa4044e957b9e5638dfc698a939f9b3074c09b72512b307e0872		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE722 10844 bytes
font_02_sfnt_off00010c4d.bin
ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C4D 16092 bytes
font_03_sfnt_off00012115.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12115 4324 bytes

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