Malicious PDF — malware analysis report

Static analysis result for SHA-256 16e4996b1d1f633c…

MALICIOUS

PDF

74.7 KB Created: 2021-03-27 11:02:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: eebb24514e2ba948871bb213894d46bf SHA-1: c6bcdb788877ee13f1b833afd6c88f7e8409fa56 SHA-256: 16e4996b1d1f633cde731907496346c5d927b7a6821cac8dba037b99cbe8ba68
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://nipisod.ru/strik?utm_term=how+do+folk+cultures+diffuse PDF link annotation
    • https://cdn.sqhk.co/vosiwuli/Rjirowr/14278494519.pdfIn PDF document text
    • https://cdn.sqhk.co/nivatasob/IghXhj0/berorog.pdfIn PDF document text
    • https://cdn.sqhk.co/xugosovemi/jfjhQji/diversity_and_inclusion_best_practices_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/jiMijaT/jungle_adventures_prices.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvavegipap/5kGWDif/medical_representative_resume_sample.pdfIn PDF document text
    • https://cdn.sqhk.co/gewewoturila/GAUHwhi/u_mobile_postpaid_plan_30.pdfIn PDF document text
    • https://cdn.sqhk.co/dutimapo/fcE3CjG/absorption_spectrum_or_emission_spectrum.pdfIn PDF document text
    • https://cdn.sqhk.co/kunawako/NMhhHhg/7336569688.pdfIn PDF document text
    • https://cdn.sqhk.co/peluxisomex/Vjcjiie/xuxopopex.pdfIn PDF document text
    • https://cdn.sqhk.co/potasuregoz/hdHfgiD/zombieville_usa_mod_apk_revdl.pdfIn PDF document text
    • http://trellos.fun/97238502165bzfv2.pdfIn PDF document text
    • http://herss.space/pidexulirepomeje0hfn9.pdfIn PDF document text
    • https://cdn.sqhk.co/tazakabebilo/jigYghh/telecharger_logiciel_tip_tap_top_gratuitement.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxifobiro/Dhggfeo/bloomberg_new_energy_finance_report.pdfIn PDF document text
    • https://cdn.sqhk.co/lulamekajasu/9RbBdjT/text_photo_collage_maker_app.pdfIn PDF document text
    • https://cdn.sqhk.co/wazilisiko/ZMNiaib/lazexipo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/risisipajole/what_is_the_sales_tax_in_houston_texas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08f15655-7dde-453c-b37b-fbd0c7a2fb61/fojogovotibatadede.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d96b1d7-0958-48a6-81d4-6a6b3e8fd977/37698326955.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/jejupigipilofuni.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/integral_calculus_application_problems_with_solutions.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE788 4924 bytes
SHA-256: 2cdc37d63ad49bbe58a70718b8a0a60ec8e9c584397ecfedb10fd53fa45ce731
font_01_sfnt_off0000f86d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF86D 10484 bytes
SHA-256: 6afd4539099c00c83d00c31de3935f466a002d28b11f0e77a6356169332be31b

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