Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3a0bab317ca50ea…

MALICIOUS

PDF

77.7 KB Created: 2021-03-17 02:54:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e137033556a267e7daf3216d28dfd906 SHA-1: eddd0c9da5df92d34e49e0ce1e7b349e082f3c3b SHA-256: a3a0bab317ca50ea47c09b12fdac3f1b532f8bf752124742f30ddbcae5bae86b
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. It contains an embedded URL that leads to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to educational content, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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/123?utm_term=evaluating+expressions+worksheet+5th+grade+pdf
    • http://lumufurisazela.mywebcommunity.org/59225874201.pdf
    • https://static.s123-cdn-static.com/uploads/4460980/normal_5ffd9911e5ad1.pdf
    • https://cdn-cms.f-static.net/uploads/4449974/normal_602cffda448d9.pdf
    • http://zifufarox.getenjoyment.net/64941756591.pdf
    • http://xufuzema.sportsontheweb.net/list_of_strong_adjectives.pdf
    • http://gosunenibunale.getenjoyment.net/37885652816.pdf
    • http://vodabutopidaru.getenjoyment.net/hebrew_greek_keyword_study_bible_nkjv.pdf
    • http://gokojun.scienceontheweb.net/can_you_feel_the_love_tonight_chords.pdf
    • http://rumepado.mypressonline.com/tobefarotimaxavifo.pdf
    • https://static.s123-cdn-static.com/uploads/4426072/normal_6001e7280d80f.pdf
    • https://cdn-cms.f-static.net/uploads/4449004/normal_603d8479a936b.pdf
    • https://cdn-cms.f-static.net/uploads/4463306/normal_602c2e0f9519b.pdf
    • https://static.s123-cdn-static.com/uploads/4473340/normal_5ff715a9ceecf.pdf
    • https://cdn-cms.f-static.net/uploads/4404113/normal_604b577b2146c.pdf
    • http://wamuwosola.mygamesonline.org/can_you_get_a_realtor_license_online.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/xalexojaxipud/step_by_step_2_digit_multiplication_worksheets.pdf
    • https://s3.amazonaws.com/tawovojo/fegenewu.pdf
    • https://s3.amazonaws.com/dudujopixejikug/57522752205.pdf
    • https://s3.amazonaws.com/sesafefanulokam/fupozemu.pdf
    • https://s3.amazonaws.com/bugutaj/canada_passport_photo_size_template.pdf
    • https://s3.amazonaws.com/pewebopufupe/9351479139.pdf
    • https://s3.amazonaws.com/litunux/vuvagivuz.pdf
    • https://s3.amazonaws.com/juzewojavomofew/how_well_does_the_total_gym_work.pdf
    • http://tijuvewoduga.onlinewebshop.net/lijedavem.pdf
    • https://s3.amazonaws.com/xazarujokemus/zodebekinul.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_off0000f04b.bin
e43c505e787faaf23124b78aac18c8f8863848309bf4bd46c85077a258e53e09		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF04B 5668 bytes
font_01_sfnt_off000103b6.bin
7dde573930de6a9c1ee4ef4eb4cf3fbaf757a25e9ad7af24df5657efa4f2347b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103B6 10980 bytes

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