Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ea583898536b481…

MALICIOUS

PDF

74.8 KB Created: 2021-04-02 06:14:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abd80e0e3c95e912c86a10c633ccaa8b SHA-1: 759c933548705808a89c1fa075f4479711efd8ce SHA-256: 0ea583898536b4817ebf401b4aa3f869b1c1fe01d38a5b45fbfcdf091ea11281
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that redirects to a site offering 'kill your bosses games unblocked,' likely a lure to disguise a phishing or malware distribution attempt. The presence of multiple suspicious URLs further supports this. No scripts were extracted, but the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content.

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://fokemale.ru/wix?keyword=kill+your+bosses+games+unblocked
    • http://bigmagazin.xyz/wasosijavunofapapu7wa86.pdf
    • http://cyberlife.store/57124247353vi59r.pdf
    • http://bcpzonasegur4viabcp.com/wordly_wise_3000_book_3_lesson_6p6cyu.pdf
    • https://cdn.sqhk.co/wapogade/Jijhbjg/20375498681.pdf
    • https://cdn.sqhk.co/letareximo/hahdjJC/33790608109.pdf
    • http://test123test.xyz/73802799744axbe4.pdf
    • http://cosmicgig.com/xedixuganupepesalezetag5yi9f.pdf
    • http://sweetygirl.club/voa_persian_on_hotbirdqouoq.pdf
    • http://bettyloustintruckbbq.com/zapudumqytf.pdf
    • http://checkmycredit.info/dead_to_the_world_idiomatic_expressioncy853.pdf
    • http://metiwizonud.getenjoyment.net/kosavowe.pdf
    • http://yogait.space/lopelutafbid20.pdf
    • http://mobile-media.moscow/ramivomnp5z.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bokofapig/can_you_mod_fallout_4_on_xbox_one.pdf
    • http://pizuzol.onlinewebshop.net/volvo_bm_350.pdf
    • http://nogafojomor.onlinewebshop.net/7158910851.pdf
    • https://s3.amazonaws.com/pojikovewijeja/6547454209.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3c0.bin
c51209ebfe43f7f855ee7855d02b35897000417f98cec97eccaf499fefdaa188
pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C0 5532 bytes
font_01_sfnt_off0000f67f.bin
31ffc54311d011c29f6f7f623b730126f6bd35544ef4431cc4866f758f770e01
pdf-font-stream PDF embedded font (sfnt) at offset 0xF67F 11728 bytes