Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea0b19733ba167a0…

MALICIOUS

PDF

72.3 KB Created: 2021-04-01 23:30:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d12192f01c30a5428abf1ef0eb02117d SHA-1: 7b894540222ac5471ee648ba2c1a3603234dfa09 SHA-256: ea0b19733ba167a00b35d8b084b1184cf8e9de84f851d855b84e49ecd1bf51da
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a malicious domain, likely intended to trick users into downloading further malware or phishing for credentials. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users through a deceptive link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jottigo.ru/wix?keyword=myeconlab+microeconomics+answers
    • http://copyrightsafetyhelps.com/153717260454cdz1.pdf
    • http://vumogegotawugub.mypressonline.com/romeo_y_julieta_resumen_de_cada_capitulo.pdf
    • http://fojukivijivik.medianewsonline.com/essential_calculus_early_transcendentals_2nd_edition.pdf
    • http://bujenaro.scienceontheweb.net/gogofigafifix.pdf
    • http://reduslim-ufficiale.website/beat_saber_avatars_download92eml.pdf
    • http://pugisapi.mypressonline.com/jalapev.pdf
    • http://fudoviwil.mywebcommunity.org/how_to_write_a_business_letter_of_intent.pdf
    • http://zipubezexupoka.mywebcommunity.org/how_to_change_battery_on_jbl_flip_3.pdf
    • http://memowelubi.mygamesonline.org/bissell_cleanview_vacuum_operating_instructions.pdf
    • http://mutugupepu.iblogger.org/takovunomesolevilezaxe.pdf
    • http://xovitixekewelom.scienceontheweb.net/what_are_the_five_characteristics_of_romanticism.pdf
    • http://nekretnine.site/western_gun_sound_effectstyj4r.pdf
    • http://extrameets.fun/4632992740vzjgv.pdf
    • http://fekowepiz.mywebcommunity.org/athens_airport_map.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bafuwujix.atwebpages.com/america_the_story_of_us_division_worksheet_answer_key.pdf
    • http://wipadafefuxasi.onlinewebshop.net/4952766969.pdf
    • http://madigekole.onlinewebshop.net/47838073028.pdf
    • http://nejabet.epizy.com/zusubajigaxujuzidetok.pdf
    • http://vibirokudod.myartsonline.com/retail_franchising.pdf
    • http://gipebevu.atwebpages.com/how_many_calories_are_in_a_jiffy_corn_muffin.pdf
    • http://bajamixowi.epizy.com/let_the_drums_speak_bernard_purdie.pdf
    • http://dexixikix.epizy.com/dslr_pic_editor_app.pdf
    • http://wamigogobug.epizy.com/clerk_of_works_and_site_inspector_handbook.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_off0000dcb5.bin
27ceb7071c975e70f8af79de07cb01d0647686cfd9352f35ef2022ebdb4d538c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB5 5284 bytes
font_01_sfnt_off0000eeb6.bin
81db97c372019bf1194f3df020b8c1b360e59f6325cf4134525b1c0f4fd0ef7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB6 11004 bytes

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