Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c1c927af0d63d49…

MALICIOUS

PDF

75.3 KB Created: 2021-03-15 20:19:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e2c8632925cad77c29509dc98e6499a SHA-1: 7baeb282c5051156eb56ca3541cb6eeef3e192c2 SHA-256: 0c1c927af0d63d494b6a6c449962039dc7a409ce87dbb4f8edb7807d8d2abea5
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL that masquerades as a search result, likely to trick users into visiting a malicious site. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to redirect the user to a potentially harmful resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/aws?utm_term=how+many+pages+are+in+the+lost+hero+graphic+novel
    • https://static.s123-cdn-static.com/uploads/4463300/normal_5fefd5305698e.pdf
    • http://wesubukejegi.iblogger.org/appium_scroll_down_android_ruby.pdf
    • http://pugisapi.mypressonline.com/18736173848.pdf
    • http://xupenirulavep.iblogger.org/64715626741.pdf
    • https://static.s123-cdn-static.com/uploads/4376371/normal_5fcc92f218073.pdf
    • http://xokubenafap.66ghz.com/ronaldo_juventus_photo.pdf
    • https://static.s123-cdn-static.com/uploads/4490274/normal_5ffed528b2395.pdf
    • http://dewisazovuvoxi.mywebcommunity.org/career_development_smart_goals_examples.pdf
    • http://jajolamuseku.medianewsonline.com/53515984382.pdf
    • https://static.s123-cdn-static.com/uploads/4475738/normal_5fdde78d972da.pdf
    • https://zikagedatudupoz.weebly.com/uploads/1/3/4/2/134266226/7894140.pdf
    • https://cdn-cms.f-static.net/uploads/4369328/normal_604d2aa79c15c.pdf
    • http://nasumowuvajoda.iblogger.org/ceclor_af_750_mg_bula.pdf
    • https://vasanawibef.weebly.com/uploads/1/3/4/6/134651618/nuwikasupa.pdf
    • https://sekitajed.weebly.com/uploads/1/3/1/3/131383533/16a4204c6f88b6.pdf
    • https://nomukemometikuf.weebly.com/uploads/1/3/1/4/131483138/cd66680c6293d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pumikowexudat.onlinewebshop.net/92454390004.pdf
    • http://wenafebadutaw.rf.gd/how_to_make_cover_art_for_podcast.pdf
    • https://s3.amazonaws.com/nedijowewoded/6098077642.pdf
    • https://s3.amazonaws.com/nemafu/ark_metal_tree_platform_command.pdf
    • http://jalijoruki.atwebpages.com/ruxadojotowuxaxanunuveb.pdf
    • https://s3.amazonaws.com/kavifunaruvi/fe_reference_handbook_10.pdf
    • http://metepukiwameme.epizy.com/bootstrap_table_template.pdf
    • https://s3.amazonaws.com/ribowexulo/english_workbook_4_answer_key.pdf
    • http://lusafawapinoxe.rf.gd/po_bisnaguinha_informao_nutricional.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_off0000e63a.bin
e3181b115636456e040da0ca5641228d34747c65c0ff894e24fbf1deaf497c26		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE63A 5564 bytes
font_01_sfnt_off0000f918.bin
e037dc15b6bd4e2b8027bebde744ecfe1cd46c1458497e38547b96d434978118		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF918 11584 bytes

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