Malicious PDF — malware analysis report

Static analysis result for SHA-256 68ed1d4c46787f18…

MALICIOUS

PDF

88.9 KB Created: 2021-03-30 02:12:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: caa92b3146deec0ec7e8b0196e9a7a20 SHA-1: 41bafc8e4a685cb4534f81924cad253de9cf23bb SHA-256: 68ed1d4c46787f18a9342f66e24d7bb39a910c71cb213a155db6d3df32f8c3f4
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 URL that appears to be a lure, disguised as a programming PDF. While no scripts were explicitly extracted, the nature of PDF malware often involves embedded JavaScript to exploit vulnerabilities or redirect users to malicious sites.

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://leonvi.ru/award?keyword=java+programming+pdf+for+class+10+icse
    • http://lorenbayi.com/130462808063g6v0.pdf
    • http://gidepel.22web.org/beforward_toyota_hiace_van_manual.pdf
    • https://mupililoxer.weebly.com/uploads/1/3/5/3/135302313/bozokulamikujokoj.pdf
    • https://muwewixobajigu.weebly.com/uploads/1/3/4/3/134312624/wejufemitoboveri.pdf
    • http://wumomotetidofe.getenjoyment.net/ectomorph_workout_plan.pdf
    • http://gubokiwurajot.iblogger.org/machine_learning_books_github.pdf
    • http://mastericy-chistoty.ru/xovakez9yx1w.pdf
    • https://kijiwutexaji.weebly.com/uploads/1/3/4/6/134698992/lapaxawuboruma-femomaze-warilum-wofofivivodego.pdf
    • http://khanapoorti.com/guided_hypnosis_for_depressioncpm1i.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/821dc919-761a-464e-8f3f-837211c1b06b/joluwawamilekikokavum.pdf
    • https://uploads.strikinglycdn.com/files/deac1f0d-2039-4ec8-a02c-b7fa496c4dca/all_the_rules_book_review.pdf
    • https://s3.amazonaws.com/tedowafomaru/xukav.pdf
    • https://uploads.strikinglycdn.com/files/69dca018-1dc5-4fb2-8581-c7e7616195cb/book_report_form_6th_grade.pdf
    • https://s3.amazonaws.com/gafedupeba/bluestacks_for_pc_x86_32_bit.pdf
    • http://zebekebagen.epizy.com/didepupirapudijorivapix.pdf
    • http://noroved.myartsonline.com/wibuwujajuzamerilobedita.pdf
    • https://uploads.strikinglycdn.com/files/4dd8a1d6-f241-4831-b73e-89b7798073fe/64236245331.pdf
    • https://s3.amazonaws.com/lososimap/71513320959.pdf
    • http://daxotumolurotaw.rf.gd/the_shining_tv_mini_series_cast.pdf
    • https://s3.amazonaws.com/silubebebefuju/subject_and_predicate_practice_sheets.pdf
    • https://uploads.strikinglycdn.com/files/9b9623e6-53f1-45c9-ae28-2c0b214b07cb/lasonizevo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010c6b.bin
8fa4b9cb1264160187acf260caac99091393aedf672a5ec03d793db042d9fb73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C6B 5428 bytes
font_01_sfnt_off00011ec7.bin
83e59c8eea03ce65f0d0e80f54d21529e1f1c6b95fef83ae2d22cf569470f0b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11EC7 11572 bytes
font_02_sfnt_off00014651.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14651 4324 bytes

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