Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebf04c24e0f01e82…

MALICIOUS

PDF

77.5 KB Created: 2021-04-03 07:12:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0877e4cd09ca9941ed2d5215c06e76fb SHA-1: 9912c85cc5c1754d1902ff4f370d8d2211b4a3ad SHA-256: ebf04c24e0f01e82c53665473069481a5423db43592dacdb4aab3522816b2eaa
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The document body is heavily obfuscated and appears to be malformed, further indicating malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://pelibifir.ru/award?keyword=trumpet+alto+sax+duet+pdf
    • https://cdn.sqhk.co/mojesoje/ibjhjjs/learning_upgrade_free.pdf
    • http://fafijitesulexiz.mygamesonline.org/jurnal_anemia_hemolitik_autoimun.pdf
    • http://dexuposi.sportsontheweb.net/a_first_course_in_graph_theory_solution_manual.pdf
    • http://xepuxupipe.mywebcommunity.org/55990580329.pdf
    • http://private-channel.site/the_rabbits_who_caused_all_the_troubler2zus.pdf
    • http://vurovolapoza.mygamesonline.org/refewurufilolazulu.pdf
    • https://cdn.sqhk.co/losokifape/ifxPhb4/indonesia_business_news_today.pdf
    • http://levotavo.scienceontheweb.net/automation_tia_portal.pdf
    • http://poramifena.iblogger.org/xupixufuvuwapub.pdf
    • http://boothattendant.com/xabojipufogebof9gtip.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://528a8416-53f4-4693-bcf0-540471887af1.filesusr.com/ugd/c3aa89_1b3576bb2e7c4f489039ac093f02d586.pdf?index=true
    • http://tezipibuboxigo.epizy.com/jurudeg.pdf
    • https://8dfd47f4-e591-4377-92a3-bdbf91d41e5a.filesusr.com/ugd/a58b01_8d7fb03f39344f1fba5470d8748f833a.pdf?index=true
    • https://4f870d4f-701c-4ec6-bbb3-7277acc5528a.filesusr.com/ugd/fdcb8d_21e60f5233f74156a1c887ecf277eae6.pdf?index=true
    • https://24218389-b518-4ca3-8548-65eaf758daa4.filesusr.com/ugd/c836c3_aa8e78492cd64b339ccbd86e2f468627.pdf?index=true
    • https://fed4949e-3809-4fc0-a28b-84c5d390f589.filesusr.com/ugd/94482e_f5b7618574934d698008d446d74b9f5f.pdf?index=true
    • http://memavopunon.rf.gd/emperor_jones_act_wise_summary.pdf
    • https://c948e902-2437-43f3-9f1e-7aaad30688a7.filesusr.com/ugd/464a75_41771cd38a394edf919ac4316c553cf6.pdf?index=true
    • http://tupapepebaraj.rf.gd/android_tutorial_for_beginners.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcdc.bin
746a1312ea645e922a5b8052ea36ef12970a5f5b9d092088ff8c8e25dcfabd54		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCDC 5204 bytes
font_01_sfnt_off0000ee7a.bin
e17931966e6526486d3600ce5aa9336ca9c496769c08a76c399bcf54ce787617		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7A 10716 bytes
font_02_sfnt_off00011388.bin
46d9b83afd797048ab251ddfc9ca9a6db44f3280724c231f6a80a061bcc6fc12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11388 16120 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.