Malicious PDF — malware analysis report

Static analysis result for SHA-256 b575b813863084f5…

MALICIOUS

PDF

78.3 KB Created: 2021-03-12 05:51:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec69c87228fce098db2453564564486f SHA-1: 73dfc346bfd02e3215319a25c9f89afd5411764a SHA-256: b575b813863084f5978fc83ed59050d527bd5592e706e6ef9896fdad431e3391
104 Risk Score

Malware Insights

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

The PDF document contains an embedded URI pointing to a suspicious URL, which is likely intended to trick the user into downloading a payload. The presence of a 'download button' heuristic further supports this phishing-like lure. ClamAV detection and ML classification strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://resalured.ru/wix?keyword=yandere+simulator+apk+android+2020
    • http://gogosesetuver.22web.org/69294218294.pdf
    • http://grusha.space/kidavigotusetavefiwobovaf65p75.pdf
    • http://sayseedokg.com/43696446032bapms.pdf
    • http://topstop.site/4341720643885djh.pdf
    • http://meetplafond.xyz/how_to_install_laserjet_m1212nf_mfpmhn0y.pdf
    • http://physcoo.com/bosch_pts_10_table_saw_reviewppb4p.pdf
    • http://afracheat4.xyz/rurumamkc4j.pdf
    • http://shtangelkipokupkiitd.online/gorillaz_members_murdoc1l3f9.pdf
    • http://sdfsdfsdf.shaketorch.com/justin_bieber_new_song.pdf
    • http://wowitaly.pro/2004_toyota_matrix_repair_manual23nhd.pdf
    • http://tamakar.xyz/16561483403shor5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xofapubumifi.epizy.com/dibujos_de_cabezas_de_caballos_para_colorear.pdf
    • http://lunijikujapike.epizy.com/20002798985.pdf
    • http://ninovaxabax.epizy.com/yard_machine_lawn_mower_air_filter.pdf
    • http://zukusuvajijip.epizy.com/khan_academy_grammar_answer_key.pdf
    • http://zuxekesimulir.epizy.com/gakib.pdf
    • https://9005a25f-7293-4a73-bb0f-bc58e8c16807.filesusr.com/ugd/e3834b_be605e3fc86b4dd38955e994bcd46f73.pdf?index=true
    • https://d17f4099-ecc1-42b1-9c73-51521793457c.filesusr.com/ugd/4a2613_2924792cf26b4ba6a4ac1a21cb40c8f3.pdf?index=true
    • https://uploads.strikinglycdn.com/files/b28c340d-6423-415a-8e15-76644fb79c8f/olevia_tv_232-s12.pdf
    • https://uploads.strikinglycdn.com/files/a1943106-22dc-4489-985b-b44ff0151d9a/pifizigabebakane.pdf
    • https://64b67c6e-fbbd-4787-add8-9ed3e274c95c.filesusr.com/ugd/eb6612_5c8149867789411d8af844552968d3e6.pdf?index=true
    • http://memunameno.epizy.com/86279293714.pdf
    • http://palalujopaxuv.epizy.com/elements_of_design_organic_shapes_pattern.pdf
    • http://kinapemib.rf.gd/drive_style_plus_mobility_scooter_user_manual.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_off0000f6d6.bin
b679752fd4320a2e34928f7840c0e7412ebe037c12d6507dbcf774f4767343a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF6D6 5404 bytes
font_01_sfnt_off00010924.bin
0c349fc5d13c2f3f74e22fc30d48f1859ece02d6b20a1529f583c03b82c51da9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10924 10148 bytes

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