Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c6f602eeb5f6fe2…

MALICIOUS

PDF

68.9 KB Created: 2021-03-12 15:32:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a50971ef3d8c343fa68cb6052e5b732e SHA-1: bf87b331ee89c0e8f7b510fbd54d07ccba2dafae SHA-256: 9c6f602eeb5f6fe28ff33e488bea7b7d45b163916c492d43ceeddb736fbe0f79
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a secondary payload or conduct phishing. The document body, though heavily obfuscated, contains keywords related to 'Sears central vacuum parts', suggesting a lure to trick users into visiting the malicious URL.

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://jumiwimov.ru/strik?utm_term=sears+central+vacuum+parts
    • http://xodaxedepapopox.mygamesonline.org/which_spin_bike_is_the_best_for_home_uk.pdf
    • http://idealicaitalia-ufficiale.site/24596549567fo0bl.pdf
    • http://wutanumijejol.sportsontheweb.net/buxubukajogevuxixato.pdf
    • http://kasaxeko.mypressonline.com/ireland_work_permit_form.pdf
    • http://nogurufegu.mygamesonline.org/todose.pdf
    • http://sodowetan.mywebcommunity.org/can_depression_cause_you_to_hallucinate.pdf
    • http://bezerojiw.scienceontheweb.net/23143448.pdf
    • http://wijetaz.mypressonline.com/a_second_declaration_of_independence_1879_summary.pdf
    • http://gamedv.design/angular_8_tutorial_espaol5rgbh.pdf
    • http://specialsale.info/75314838091i0cim.pdf
    • http://tejasatobes.medianewsonline.com/infosys_campus_question_papers.pdf
    • http://terugate.mypressonline.com/zevovelegarezazoveperur.pdf
    • http://fopekoriw.sportsontheweb.net/66745761172.pdf
    • http://tujubafi.getenjoyment.net/who_sings_behind_closed_doors_lyrics.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zuwimadaneb/samsung_tv_service_mode_settings.pdf
    • http://jezevenakos.myartsonline.com/burris_eliminator_3_nz_price.pdf
    • https://s3.amazonaws.com/sukedil/dnd_5e_warlock_guide_2019.pdf
    • https://1f571a09-6495-4108-bd1a-9715deae29b5.filesusr.com/ugd/b0bf26_28fea2e5ff0449fab8f7e30f8767a88e.pdf?index=true
    • https://s3.amazonaws.com/tasufagijaremo/gikegurusa.pdf
    • https://s3.amazonaws.com/dowadotiju/what_is_the_meaning_of_shattered_in_telugu.pdf
    • https://s3.amazonaws.com/widofafane/rigix.pdf
    • https://178c1879-e916-404b-9861-a2431bd0f83a.filesusr.com/ugd/1aace6_10fa9682106f48dd8deee00c2f2b8fc3.pdf?index=true
    • 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_off0000d1a4.bin
d1123610c04d66267de3cb5133ecdb736372a25852b0a67e50df41c7c5a3f70c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1A4 5244 bytes
font_01_sfnt_off0000e367.bin
0bcd1d70aadefba7e3ab32f9e5d3129f6871266253aab697487c9145a52241e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE367 10324 bytes

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