Malicious PDF — malware analysis report

Static analysis result for SHA-256 32faeed0dbe76c07…

MALICIOUS

PDF

117.5 KB Created: 2021-03-18 08:07:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4414ecbf3ff90c4c98a308ef0656364c SHA-1: 275e90cc2d4adb28547b44987176ff54242d6f42 SHA-256: 32faeed0dbe76c07b9a933db6be16513e4630f95ca538d2ef2caf0dfdf652230
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://dafemum.ru/123?utm_term=conduction+convection+radiation+worksheets+7th+grade
    • http://tojenan.iblogger.org/donezo.pdf
    • https://static.s123-cdn-static.com/uploads/4420767/normal_5fee1c9911b69.pdf
    • http://xodinazafomizi.22web.org/23668426780.pdf
    • http://profit-makers.club/fe_mechanical_review_manual_downloadqaikj.pdf
    • https://cdn-cms.f-static.net/uploads/4464877/normal_6032e72388130.pdf
    • https://static.s123-cdn-static.com/uploads/4373239/normal_5feb964fafb0b.pdf
    • https://static.s123-cdn-static.com/uploads/4369631/normal_5fc5c75085143.pdf
    • http://kipegujodup.getenjoyment.net/pathoma_2017_google_drive.pdf
    • http://ing-jobs-opportunities.com/vefugojoxigixpsc21.pdf
    • http://bluetea.space/5th_grade_common_core_math_fractions_worksheetsvmbbs.pdf
    • http://tb-films.ru/lefaxisipemudazawetomudinr0yw2.pdf
    • http://odebayitrafikhizmeti.com/homemade_sparkling_water_machineabpgp.pdf
    • http://sutovuresas.mygamesonline.org/quotes_from_emerson.pdf
    • http://lusivemewuza.22web.org/eular_guidelines_rheumatoid_arthritis_2017.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://regisebe.epizy.com/98856624617.pdf
    • http://sezipikoguzole.epizy.com/liability_release_form_template_free.pdf
    • http://sabukizazuse.epizy.com/wreck_this_journal_everywhere.pdf
    • https://78fa80b2-8629-447b-ad63-53e91e8d4948.filesusr.com/ugd/8f02de_cf0f6e735ff340cbb867e72cc260e7cb.pdf?index=true
    • https://6cdf8c5e-36a0-4b6d-987f-32d3d50030cd.filesusr.com/ugd/3c2e2e_d07264569d324f12896419c93393d3b2.pdf?index=true
    • http://perexuwofogefo.onlinewebshop.net/roduxovalezek.pdf
    • http://zerowegujij.onlinewebshop.net/79604796169.pdf
    • http://vutesupazidoz.epizy.com/63320029521.pdf
    • https://e1eccfe9-8888-4f52-a155-e9c8e84e0752.filesusr.com/ugd/4fb05f_993b870ab5f34c20b9ad6c4658d5a7e5.pdf?index=true
    • http://nobubuti.rf.gd/php_date_timestamp_format.pdf
    • http://zatupux.rf.gd/22324778632.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000182bd.bin
2c94c4ba1d8a305115b815feafb10198f2760b25c07d095fad68a1d30f741d35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x182BD 5372 bytes
font_01_sfnt_off00019515.bin
f6b1df63fe37622969e2da94fc84033336617f2bb88ed9efb770c575f9b4880d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19515 2536 bytes
font_02_sfnt_off00019ff8.bin
caa4841d4832daa00200597a44c27100a249648f8e36247cd0742df250f086a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19FF8 11508 bytes

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