Malicious PDF — malware analysis report

Static analysis result for SHA-256 60355e0af798d5f4…

MALICIOUS

PDF

67.8 KB Created: 2021-03-29 02:04:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e33735d1f96103fed7b6b2e39e5ea49 SHA-1: 2c9d7c23fdfab489b616179de21c8db13ef5be33 SHA-256: 60355e0af798d5f4475207c3e71140a73eb7feaf234702230295e6155790ce4e
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading a malicious payload. The document body's content is garbled, suggesting it's not meant for direct human consumption but rather to obscure the malicious intent.

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://dafemum.ru/award?keyword=article+a+an+the+rules+pdf
    • https://cdn.sqhk.co/keropolor/jhwLc1z/i_draw_color_by_number_pixel_art_printable.pdf
    • http://xujujez.iblogger.org/gazetted_holidays_2020_in.pdf
    • http://kegetisa.mygamesonline.org/1000_words_english_to_arabic.pdf
    • http://mixed-rootwork.com/42438232575bayur.pdf
    • http://soldonlakewood.com/kavetijopobizegedyeqd.pdf
    • https://cdn.sqhk.co/gusisitixinu/hdgVwje/sevededilunezuvasalakow.pdf
    • http://classkaod.ru/zeronamuvejij45gbo.pdf
    • https://cdn.sqhk.co/gazejuruni/0gfVIge/77_delicious_recipes_lemon_brownies.pdf
    • http://dihtyar.online/south_african_house_music_2018_free23g6c.pdf
    • http://zinedoxo.22web.org/selalopawukikagojidiwem.pdf
    • https://cdn.sqhk.co/gikunixa/fvZX3he/65494244015.pdf
    • http://trenolgia.buzz/what_is_the_history_of_lifew55fv.pdf
    • http://onkoprofi.ru/500961182249idum.pdf
    • http://uspeh.icu/22886124136qgl26.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/affa0739-2aa7-4b28-8368-23cf027e49fe/50244135620.pdf
    • https://uploads.strikinglycdn.com/files/8fc7b9ab-0278-40b7-9550-bbd66f31851f/biduzurekoxik.pdf
    • http://wuluminibopa.rf.gd/biostatistical_analysis.pdf
    • http://gegilifopom.myartsonline.com/77814305059.pdf
    • https://uploads.strikinglycdn.com/files/b158ab3a-79e5-4c22-855b-8e9aa91debb2/fun_easy_yoga_poses_for_2.pdf
    • https://uploads.strikinglycdn.com/files/6e5158e6-e3cc-46bc-83dd-40730972bdc3/lopowixavufaziwuxenub.pdf
    • http://wujagenak.atwebpages.com/crayon_box_template.pdf
    • https://uploads.strikinglycdn.com/files/7d5d5ff9-bcac-4d55-b8fd-86fd04f555b6/lafalujaguxawuzofotas.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_off0000ceb1.bin
2f7fc2b2ea9edb71cd563e2ff77216b591fea67362b35053d260beec0ee0e85a
pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB1 5232 bytes
font_01_sfnt_off0000e079.bin
48df09e07ff01d8e844c3fca122f8331c4bcb585f78217d092bc3ffe66175b1b
pdf-font-stream PDF embedded font (sfnt) at offset 0xE079 9804 bytes