Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2d464b20880e8eb…

MALICIOUS

PDF

98.3 KB Created: 2021-03-13 17:22:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c5e3c459ac11be6b83fedf8d7175c5e8 SHA-1: 589f08d2eef5ca013b91dbb71be95a8785da8efb SHA-256: e2d464b20880e8eb18567356fa66e1d3c77f7b2538d4e1ecfbafa89528f1a404
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is likely the primary lure. The document body, though heavily obfuscated, suggests a worksheet theme, which is a common social engineering tactic. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly indicate a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/wix?keyword=adjectives+and+adverbs+with+magical+horses+worksheet
    • http://sugoxebojun.getenjoyment.net/98534063118.pdf
    • https://feboratopaw.weebly.com/uploads/1/3/1/3/131383734/4832061.pdf
    • https://cdn.sqhk.co/porosobof/DHbhejf/minecraft_pickaxe_png_transparent.pdf
    • https://cdn.sqhk.co/wijelukifap/gfXjbgc/puxujadesarav.pdf
    • https://pusiruse.weebly.com/uploads/1/3/4/7/134717846/f24f7.pdf
    • https://lomofoxagut.weebly.com/uploads/1/3/4/5/134524577/gedekikuvopetaki.pdf
    • http://mobeditobaxul.scienceontheweb.net/which_model_of_omron_bp_monitor_is_best.pdf
    • https://nozezezolakufu.weebly.com/uploads/1/3/2/6/132695232/vexix-wadabire-dikigoji-xizarexuwame.pdf
    • https://cdn.sqhk.co/tinipuded/wIiiZXo/sir_nick_carter_net_worth.pdf
    • https://pukogapuwobar.weebly.com/uploads/1/3/4/3/134307851/nakafi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pofijiserige.onlinewebshop.net/suponixonulakub.pdf
    • https://0c2a7d7b-be9d-4ef2-a94c-09ca905cc17d.filesusr.com/ugd/7d21c0_d37f115f2b31480ea735c889e52a4ea3.pdf?index=true
    • https://f733e552-90a1-4d1f-83ca-a6b36afcf31c.filesusr.com/ugd/38bf1f_ca16da21c1944b91b4bf17e59ff27daf.pdf?index=true
    • https://s3.amazonaws.com/lebaxa/31329703027.pdf
    • https://uploads.strikinglycdn.com/files/1e132117-87a3-4bfa-b59f-47ce1a118fbe/mujudedidije.pdf
    • https://s3.amazonaws.com/dagasopones/adjustment_letter_sample.pdf
    • https://b354d503-40d1-4c97-84b4-bc0b16c12f35.filesusr.com/ugd/8c7d07_3f2b7f459b314079a50f5b8a7a23cb3a.pdf?index=true
    • https://s3.amazonaws.com/jasipefulaxiduj/betukejiboz.pdf
    • https://uploads.strikinglycdn.com/files/10a54ae9-81f9-43db-8197-b8089e7b9396/refugetamagupewulonovon.pdf
    • https://s3.amazonaws.com/lumixi/completing_the_square_formula_khan_academy.pdf
    • https://s3.amazonaws.com/juvosi/mefexeralamowiri.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_off00014409.bin
693329a544222b9478556e0800a4074a0c3b19bf3ed4785683ef43876262d880		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14409 5776 bytes
font_01_sfnt_off0001579c.bin
99da239de63facbc55f96f4278da50b4ec0c203eb92e8c80513911a64e1963ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1579C 10560 bytes

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