Malicious PDF — malware analysis report

Static analysis result for SHA-256 56c7dd9f442ec15e…

MALICIOUS

PDF

93.8 KB Created: 2021-02-21 12:53:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 02985f4771446543bd9e01d565e7558b SHA-1: 473c364689d1b09009361ed7245452b1f5e490b9 SHA-256: 56c7dd9f442ec15ebe2d754c2f24511ea0ef01285e78e03f2441498de2ad1138
96 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that appears to be a lure, directing users to a site that likely hosts malicious content or further phishing attempts. The document body, though heavily obfuscated, contains text related to 'The tapping solution movie' and the authoring application, suggesting a social engineering pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://druttle.ru/123?utm_term=the+tapping+solution+movie PDF link annotation
    • https://cdn.sqhk.co/gukawaki/ehfridK/nezumajemoza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407552/normal_601404840a79f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477167/normal_6028efe5ceabd.pdfIn PDF document text
    • http://lavenidevekovu.iblogger.org/fuduwovu.pdfIn PDF document text
    • http://vivanazesile.iblogger.org/41043746993.pdfIn PDF document text
    • https://cdn.sqhk.co/totafeta/iijihhj/zombicide_tactics_shotguns_review.pdfIn PDF document text
    • http://thedouche.xyz/zebeweroav9u9.pdfIn PDF document text
    • http://zajowuresa.iblogger.org/tulipoloneraxu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xakapudakadu/movuganewezusigutejifo.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/52170760041.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/bstc_paper_2019_gk_answer_key.pdfIn PDF document text
    • http://potolonufe.epizy.com/kaukulan_ng_panghalip_worksheets_with_answers.pdfIn PDF document text
    • http://moferamobonar.epizy.com/jquery_cdn_google.pdfIn PDF document text
    • https://s3.amazonaws.com/setikizo/26857072103.pdfIn PDF document text
    • http://takugiwem.rf.gd/12394826294.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE56 6692 bytes
SHA-256: 5692e5be98644d0ebf29a13dbafd7982e2389c2fe625c5fdcaa2db1760791c9c
font_01_sfnt_off0000ef19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF19 5028 bytes
SHA-256: 1a2f98001eed97d27e57a8339e98253d15430c4a077cae66e3be61fbc3cd40f0
font_02_sfnt_off00010006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10006 8052 bytes
SHA-256: b66299ffea39c5df9fa27b9ee63a6ae9474a9dc55930a9aa81776e51f433035a
font_03_sfnt_off00011237.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11237 12160 bytes
SHA-256: 5eece0de2354486efc281ef4589fa88f8f5accc96747f1cb2887a789f28369d9
font_04_sfnt_off00013acd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13ACD 16920 bytes
SHA-256: 4fb86de7bb2e81e62e7945c3e31bbb788081ea089dc4249f6a073ec8468a63bb
font_05_sfnt_off000152fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x152FC 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
font_06_sfnt_off000160af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x160AF 1736 bytes
SHA-256: 5095ccdfdd328c3f25b1766e9c65bca58fa839170fcb9f3db3c20e130d955aff

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