Malicious PDF — malware analysis report

Static analysis result for SHA-256 05b5269b613451bf…

MALICIOUS

PDF

77.2 KB Created: 2021-03-22 06:46:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae2e6a82f9258d80ad7989bfcbece6f1 SHA-1: bd1906ac93aa8b91439902c28fe4d190c2a1cd40 SHA-256: 05b5269b613451bfc62c808f1c8f6df10c57a9de30b1c73378926551f5966eea
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'https://soxebez.ru/wix?keyword=case+of+the+missing+puffles+secret+task', which is likely a phishing or malware distribution URL. The document body, though heavily obfuscated, contains text related to a 'secret task' which aligns with a lure for malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/wix?keyword=case+of+the+missing+puffles+secret+task
    • http://mukovasisoro.mygamesonline.org/98827169819.pdf
    • http://jokebixa.22web.org/congenital_hypothyroidism_guidelines_iap.pdf
    • http://vurimujud.iblogger.org/obstacle_avoiding_robot_using_arduino_code.pdf
    • http://nupigit.22web.org/99906277615.pdf
    • https://cdn.sqhk.co/sozodumupof/jehjgdT/hyperburner_mod_apk.pdf
    • https://cdn.sqhk.co/gobuwovuv/Ziaggic/rc-_airsim_rc_model_airplane_flight_simulator.pdf
    • http://famekeletiti.iblogger.org/31704842648.pdf
    • https://cdn.sqhk.co/zafupusapun/UdMX6w4/bus_simulator_2019_free_pc.pdf
    • http://vosalax.22web.org/63614377714.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tifavamifikas.myartsonline.com/75867171870.pdf
    • http://sidogin.epizy.com/mourid_barghouti_i_saw_ramallah.pdf
    • http://gatafowe.epizy.com/27951691237.pdf
    • https://uploads.strikinglycdn.com/files/39c49a95-9970-4e62-9e32-d3dfecbb33a5/dr._heideggers_experiment_quizlet.pdf
    • https://uploads.strikinglycdn.com/files/82c80d86-a660-42d7-a6c7-959a6012a36b/21936617840.pdf
    • https://uploads.strikinglycdn.com/files/a02b658c-032c-4977-91e8-25b1a05b886c/26420128796.pdf
    • https://uploads.strikinglycdn.com/files/4b283709-e679-45fe-8d8d-20ea2ea29fc4/sea_of_monsters_summary_book.pdf
    • https://uploads.strikinglycdn.com/files/c0c0729a-bdfc-44c0-a877-1cd2da9b3ec2/gre_root_word_list_with_examples.pdf
    • http://lumaxixi.epizy.com/tuzobufosuxexoxumagij.pdf
    • https://uploads.strikinglycdn.com/files/d93ffb5b-cd94-4e0d-8701-14473850d6ec/bumukuw.pdf
    • https://uploads.strikinglycdn.com/files/0039618f-914e-4802-9922-f05645a132fa/tuvolozilarotip.pdf
    • https://uploads.strikinglycdn.com/files/6143f469-ec33-460a-8626-d357f6f26f70/movosekitulupoki.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_off0000ec73.bin
d6bcf7189afa38499c0d45db271c26050680257732090c5a28474fa122e6aca0
pdf-font-stream PDF embedded font (sfnt) at offset 0xEC73 5400 bytes
font_01_sfnt_off0000fea9.bin
7421cc264f7480998ac2756879d9f5948fbe7bb219b01b3fccf4817a3d61ad83
pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA9 12264 bytes