Malicious PDF — malware analysis report

Static analysis result for SHA-256 e04a5aa29c84522a…

MALICIOUS

PDF

73.9 KB Created: 2021-02-23 12:55:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 6e767e2b1595158bc0e98ae43f2459d6 SHA-1: 6aa48438657b1f067c8950e6695e981a63acce2e SHA-256: e04a5aa29c84522a1cfea21802d85e33e4d850ff9f640b4b500114ea7940511d
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which are hosted on disposable domains, indicating a link farm designed to redirect users to malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The document body, though heavily obfuscated, contains keywords related to a scanner price, aligning with a lure to trick users into clicking the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://seumenha.ru/wb?keyword=canon%20canoscan%20lide%20220%20scanner%20price PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4446395/normal_5fe8cade662c4.pdfIn PDF document text
    • http://nextauto02.ru/94800863092pu7mv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471083/normal_60055d23b6441.pdfIn PDF document text
    • http://meblik.su/moves_for_mortal_kombat_xl202g0.pdfIn PDF document text
    • https://cdn.sqhk.co/zudoputasafe/djduiaX/46046776059.pdfIn PDF document text
    • https://cdn.sqhk.co/lobitukojuro/TNhi3ZM/60397291748.pdfIn PDF document text
    • http://forkidsshop.online/weekly_marketing_activity_report_templategu11h.pdfIn PDF document text
    • http://zootime.store/66676822478x2hu2.pdfIn PDF document text
    • https://cdn.sqhk.co/pananele/gdegijh/pajulunipomi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445737/normal_600363ed60ade.pdfIn PDF document text
    • https://cdn.sqhk.co/xanapaje/czxzjqg/55151936069.pdfIn PDF document text
    • https://cdn.sqhk.co/jadosoxiko/iRgchgh/tibunoriwajo.pdfIn PDF document text
    • http://tuxosuzarug.iblogger.org/zelda_ocarina_of_time_n64_emulator_android.pdfIn PDF document text
    • http://istra-backwater.ru/t_pain_bartender_songbj2w7.pdfIn PDF document text
    • https://cdn.sqhk.co/girasufu/W7HgeU4/jobiroxuguzopesalomeju.pdfIn PDF document text
    • https://cdn.sqhk.co/pigexebobe/ji5BjeJ/supplement_definition_geometry.pdfIn PDF document text
    • http://pusosokus.iblogger.org/cancun_spring_break_2019_performers.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418987/normal_5ffe5205c26f6.pdfIn PDF document text
    • http://indital.space/cara_dapat_skin_among_us_di_ioskc564.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xavitemis.rf.gd/angiosperms_characteristics.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_off0000e225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE225 5248 bytes
SHA-256: 71f03c116f9d3026468c6b3a4b2a9589ef48ad6b2d413c623ebe2465272a88ce
font_01_sfnt_off0000f3fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3FE 11292 bytes
SHA-256: 5fbbf5567ef06b886f6d98d07d6561d40c515a6ad1e7ad4b91a35ee21c5a07cd

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