Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc2d7e0db2c9a2ba…

MALICIOUS

PDF

81.3 KB Created: 2021-04-11 23:55:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83e19b204867d2f71c6fd47aceb70002 SHA-1: 72c9bd16dd6c9e4818b89a35d1b1f65eb81635af SHA-256: fc2d7e0db2c9a2baa77eb865609d9b3cb4b2e08d61e046148636e61657c8c1a5
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a malicious domain, identified by ClamAV and ML classifiers as malicious. The PDF's structure and embedded content suggest it is designed to trick users into visiting the external URL, likely to download further malware or engage in phishing. No scripts were extracted, but the presence of external URLs and high detection scores indicate a phishing or malware distribution attempt.

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://bologen.ru/strik?utm_term=place+value+activities+grade+5%252F6
    • http://rameautbxy.space/25901774602bi890.pdf
    • http://world-wild-shop.com/faraway_2_jungle_escape_level_192ax7a.pdf
    • https://zanugikujo.weebly.com/uploads/1/3/4/3/134399251/df392.pdf
    • https://cdn.sqhk.co/wixexozesila/0hbLfhb/marvel_superheroes_ringtone_download.pdf
    • http://ideaita.fun/38877649724lb638.pdf
    • http://wide-take.top/starbucks_barista_espresso_machine_instruction_manuale4mhk.pdf
    • https://bifugojatomawak.weebly.com/uploads/1/3/1/4/131437093/ade57fe166c42.pdf
    • http://copyrightsupport-ig.com/44998193158mrxjz.pdf
    • https://wodumipanopova.weebly.com/uploads/1/3/4/7/134731655/927e94fde5b3034.pdf
    • https://cdn.sqhk.co/giruzegovu/Iig347i/pba_playoffs_2019_bracket_basketball.pdf
    • https://digagewopaloz.weebly.com/uploads/1/3/4/6/134634746/8275855.pdf
    • https://cdn.sqhk.co/bajowekununa/eA1hjhe/2857399251.pdf
    • https://kipokemob.weebly.com/uploads/1/3/0/7/130738996/dewasuvakob.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/joterige/concerning_hobbits_sheet_music_violin.pdf
    • https://s3.amazonaws.com/sorapobuk/simplehuman_trio_mirror_review.pdf
    • http://mebabafa.epizy.com/24274998175.pdf
    • https://s3.amazonaws.com/mevuzokekenojab/61122766968.pdf
    • http://sobovag.rf.gd/american_diabetes_association_guidelines_2018.pdf
    • https://s3.amazonaws.com/tutapaxi/gexukalasinezige.pdf
    • http://novuvajuvenexe.epizy.com/evermotion_archexteriors_30.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_off0000fffd.bin
67a20e549612e4e569b12424c8e9f4153e7029a27356ff23acea77284e292628
pdf-font-stream PDF embedded font (sfnt) at offset 0xFFFD 5480 bytes
font_01_sfnt_off000112c2.bin
3d5a2e001200362f5d83a7d2232829faae7b26459eef25ec34da3644a210031a
pdf-font-stream PDF embedded font (sfnt) at offset 0x112C2 10700 bytes