Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0ed99f024d112f5…

MALICIOUS

PDF

80.8 KB Created: 2021-04-06 13:19:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f6fc1c9038c30734cc6ee96e91d1580 SHA-1: 12b8604e17bb39b64f9be20337228a1fbe367cb4 SHA-256: c0ed99f024d112f54eb813d44d480799fcaf1a58fc7ff69233f74c1b0f1e0745
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or malware distribution attempt. ClamAV and ML classifiers also flagged this file as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, contains keywords related to game ROM downloads, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/wix?keyword=gba+roms+apk+download
    • http://wotidoteked.mywebcommunity.org/14517995596.pdf
    • http://sevoxotedeki.medianewsonline.com/i_am_from_poem_examples_for_high_school.pdf
    • http://vekisonoloze.sportsontheweb.net/nikadonuxarokufuzadakuf.pdf
    • https://xajevopo.weebly.com/uploads/1/3/2/6/132682124/jofisewalifoditepeg.pdf
    • https://cdn.sqhk.co/petebeki/cggbmij/zakewagoragilo.pdf
    • http://zibodotuf.mygamesonline.org/rimironuwofotulepusedar.pdf
    • https://cdn.sqhk.co/fekolisuzub/Xiec8hh/wrong_turn_1_in_telugu.pdf
    • http://suraneb.scienceontheweb.net/bruselas_brujas_amberes_y_gante_de_cerca.pdf
    • https://xepevuke.weebly.com/uploads/1/3/0/7/130775471/737681.pdf
    • http://lojapidabud.mypressonline.com/calories_in_medium_caramel_mocha_iced_coffee_dunkin_donuts.pdf
    • https://tirigimufaregi.weebly.com/uploads/1/3/4/4/134464067/7bcec.pdf
    • https://cdn.sqhk.co/solijisivono/haMY9uZ/xunojeso.pdf
    • https://cdn.sqhk.co/tenokesime/aheIOji/zipivulenitulo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zerowegujij.onlinewebshop.net/rafuj.pdf
    • http://napipipazapuka.epizy.com/89251600179.pdf
    • https://bc881323-2374-4635-a2b7-f126f9929bd8.filesusr.com/ugd/546a35_1b625f013bd34b70b45fa2537202ddef.pdf?index=true
    • http://farapatenaru.rf.gd/83494818375.pdf
    • http://waxobutadarase.rf.gd/85701628268.pdf
    • https://1a413096-4115-453c-84a6-e19f3d0a1e7a.filesusr.com/ugd/4a2d03_b15f9a9e22ee46c29ab3aa8b33079f92.pdf?index=true
    • http://pasazaxara.rf.gd/weather_report_patiala_balbehra.pdf
    • https://27158da8-170d-48ca-a528-b8ced62fe517.filesusr.com/ugd/9fc8c3_1b8905b1146f411aaf1370dba77166e4.pdf?index=true
    • https://0d801636-e20c-47cf-9654-f2c4f0d28fb9.filesusr.com/ugd/2e7c9c_273e76239a0d48bfb4a2489eff45105c.pdf?index=true
    • http://pulutugorivexek.atwebpages.com/abdominal_exercises_free_download.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_off0000fe1b.bin
a12d803855a218db675983918962cb4246c263d773abe6588d05512e6a27cf25		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE1B 5432 bytes
font_01_sfnt_off0001108c.bin
3ad8194f3c00eff60b6dd718b90ed7cf067cbe8b046ccd963b7ccf40b9bec9e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1108C 11000 bytes

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