Malicious PDF — malware analysis report

Static analysis result for SHA-256 9092f4c7bcf130a0…

MALICIOUS

PDF

69.3 KB Created: 2021-03-01 21:04:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 8bcffd43fddb2cd0ab0fd836b9c60ebc SHA-1: 96225bda777e5afc8ba56f6678b3bf2e8398522d SHA-256: 9092f4c7bcf130a08774cb9365e340954672003da00ca143902cd7290bce9347
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs and is flagged as a link farm on disposable hosting, indicating a phishing or malware distribution attempt. The 'SE_BROWSER_INSTALL_LURE' heuristic strongly suggests the document's purpose is to trick users into installing malicious browser components. ClamAV detection further confirms its malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://leonvi.ru/wix?keyword=pubg+mobile+hack+uc PDF link annotation
    • https://wupugosow.weebly.com/uploads/1/3/1/3/131382590/nowitedawonusavaboza.pdfIn PDF document text
    • https://zobawejifeli.weebly.com/uploads/1/3/4/4/134458567/disofuvu.pdfIn PDF document text
    • http://gigewaxupupixe.22web.org/what_are_the_uk_markets_doing_today.pdfIn PDF document text
    • http://fazoluniguket.iblogger.org/scp_containment_breach_save_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476750/normal_5fdb88685cde3.pdfIn PDF document text
    • http://visobewitumimek.22web.org/majesty_2_heroes_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412378/normal_6011d33ccee47.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445729/normal_5feef7e8a15ee.pdfIn PDF document text
    • https://debarinibew.weebly.com/uploads/1/3/0/7/130775297/148376.pdfIn PDF document text
    • https://fiwisito.weebly.com/uploads/1/3/4/7/134715438/31a0193f6848c4.pdfIn PDF document text
    • http://busforpay.online/how_quickly_can_i_get_a_new_pair_of_glasses1hab1.pdfIn PDF document text
    • http://decideyouself.fun/nifunubarezepugodazamenelzmhh2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gevewodex.epizy.com/pabuj.pdfIn PDF document text
    • http://gofosuxubajo.epizy.com/flame_arrestor_datasheet.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD196 5144 bytes
SHA-256: b5495544237a53fd729fceacd8a2dea6097e5ae191302caa01b303de800de199
font_01_sfnt_off0000e2f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F7 11188 bytes
SHA-256: e247463b6da877e71d35c803339cbec7fb4ea11f11d6ee21607bb58cdf2c20be

Open this report in the interactive analyzer, or submit your own file for analysis.