Malicious PDF — malware analysis report

Static analysis result for SHA-256 2953d03fc2cfe09d…

MALICIOUS

PDF

76.3 KB Created: 2021-03-12 00:27:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c9d18cdd9ab5e89759c6be58c9b627f SHA-1: 8edcd3cc357003d8d3449f94e7e432621ec8e47e SHA-256: 2953d03fc2cfe09db164908f240ce89aef6229eda89c05ef5de10784cf629be4
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that leads to a phishing site, disguised as trivia questions. While no scripts were directly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious domain, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://botokaw.ru/123?utm_term=pixar+movies+trivia+questions+and+answers
    • http://promooffer.site/popumiwawapitikelazuxal0sjw.pdf
    • http://tepugorotewole.medianewsonline.com/82752057133.pdf
    • http://lufirisor.iblogger.org/ranco_etc_manual.pdf
    • http://naretel.22web.org/duwomumotogeg.pdf
    • http://gudokav.sportsontheweb.net/immanuel_kant_books_in_german.pdf
    • http://0fruit.space/nibupafaeh9sm.pdf
    • http://prizinsta24.online/nikavoruketam0micd.pdf
    • http://reactivascotia2020.com/diagrama_de_fases_quimicav3t93.pdf
    • http://fdvsefwfrw.space/jomapupakudibolubebizvhzey.pdf
    • http://bitcoinlearningcentre.online/drive_ahead_apk_mod_unlimited_moneylfa80.pdf
    • http://spencermcman.us/best_notsobot_commands0fay0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jokubamobivavum.onlinewebshop.net/how_to_download_bpsc_admit_card.pdf
    • https://s3.amazonaws.com/bezutu/64212011876.pdf
    • https://s3.amazonaws.com/wamatasamegu/avatar_korra_game_apk.pdf
    • https://s3.amazonaws.com/wusigipufuvowix/megoletavizipego.pdf
    • https://s3.amazonaws.com/jivala/nuxowanuxutexo.pdf
    • http://dexegesen.rf.gd/xeguzetulezikoziroveri.pdf
    • https://s3.amazonaws.com/falufusu/viwokokuje.pdf
    • http://gotikomerutoj.rf.gd/vikaxogoka.pdf
    • https://s3.amazonaws.com/panalipolifod/english_grammar_book_class_9_download.pdf
    • https://s3.amazonaws.com/zetubakuz/97793160400.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_off0000eca6.bin
7b9576fed84cc9beb42d91654bf65ed93f2899aaefb708e52b9e89b84f15bdb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECA6 5284 bytes
font_01_sfnt_off0000fe99.bin
5af1c204848e6740c46ec20e88cbf4ddb68297083df7553c3159d9a66c8a19b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE99 10984 bytes

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