Malicious PDF — malware analysis report

Static analysis result for SHA-256 d03d40d96413fa92…

MALICIOUS

PDF

115.6 KB Created: 2021-03-03 03:44:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 99f1fd1e33f05b13d9d890b6c8c9a778 SHA-1: 6ab6a1227830a3da49a40d97d543ebca8ce6c1bc SHA-256: d03d40d96413fa9233dec6942ca0062c3353f682aaf309c456071133e1e0e44c
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 0.9991

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://kuzutuzo.ru/strik?utm_term=what+should+a+2nd+grader+learn+in+math PDF link annotation
    • http://birebap.scienceontheweb.net/rulaj.pdfIn PDF document text
    • http://lizoguxumugef.mywebcommunity.org/rotivudeduxubebob.pdfIn PDF document text
    • http://revilokepudidu.mygamesonline.org/sunijixuvugebavisa.pdfIn PDF document text
    • http://dimozakebaba.scienceontheweb.net/educational_psychologist_ireland_salary.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449205/normal_601448f8c0e1f.pdfIn PDF document text
    • http://vazawujuzu.sportsontheweb.net/34118702172.pdfIn PDF document text
    • http://kakolamilasaru.medianewsonline.com/kamufesopajusimakapil.pdfIn PDF document text
    • http://tumuduwaju.mypressonline.com/what_is_the_thinker_sculpture_made_of.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/fixararololu/25892845315.pdfIn PDF document text
    • http://xomapagovujux.atwebpages.com/asus_x205ta_upgrade_ssd.pdfIn PDF document text
    • https://s3.amazonaws.com/dakebesuvum/menamekolewuminuz.pdfIn PDF document text
    • http://vedixemalirugi.atwebpages.com/72211355667.pdfIn PDF document text
    • http://wenares.myartsonline.com/2016_amc_10a_statistics.pdfIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/mogagujuravawaxonope.pdfIn PDF document text
    • https://s3.amazonaws.com/latufenaw/converting_units_of_measurement_word_problems_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/10th_class_math_solution_arts_group.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/sikiponu.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/15485594119.pdfIn PDF document text
    • https://s3.amazonaws.com/daxemo/weduban.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15589 6416 bytes
SHA-256: 528d1e79c27aec131c2cbf846536b85f4c117e3725d0fa982f5a85159cdab222
font_01_sfnt_off0001655b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1655B 5384 bytes
SHA-256: 5a6d4b9b73576e7250a02e0bd012ee5003c154e23ba12def044697e9487895f0
font_02_sfnt_off0001777d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1777D 2896 bytes
SHA-256: 2c323892c503d8a95e6cf5431989b4ed24da1b98074ba824e66e36e683cde4ad
font_03_sfnt_off000182c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x182C7 11704 bytes
SHA-256: 2b6004d9cde6d7b2ac816afd38509af3877a1635320f6ad6f3c9678aa9980aec
font_04_sfnt_off0001aa92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AA92 16076 bytes
SHA-256: 007377d672ad35e960bd13d3f92b574e68300ebd174b34df27fa78aa6545cdcd

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