Malicious PDF — malware analysis report

Static analysis result for SHA-256 d37631544e739e1f…

MALICIOUS

PDF

79.8 KB Created: 2021-04-16 00:57:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 050940c5bd171e7ea9ba3f01518de19e SHA-1: dc482845bc60958c3622ccee310706d601459267 SHA-256: d37631544e739e1fbae72334855c357e9e7191b66aade666f016992169e4d708
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'engagement rings' and embeds a malicious URL. ClamAV and ML classifiers have identified this PDF as malicious, specifically a phishing trojan. The embedded URL likely leads to a phishing page or a further stage of malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://xezojetit.ru/strik?utm_term=best+james+allen+engagement+rings
    • http://zuwifipenabed.medianewsonline.com/zulobegokaketaxazisok.pdf
    • https://cdn.sqhk.co/vipujitebiki/f8OFhdO/givovofisowodexekujebon.pdf
    • http://zujadise.scienceontheweb.net/kibopudimusajaxiton.pdf
    • https://cdn.sqhk.co/wajerewuwer/lePgeif/1115998574.pdf
    • https://cdn.sqhk.co/feduminaro/edjisjb/jegejoxuvakekidu.pdf
    • https://cdn.sqhk.co/bidelefo/tjcKSjf/xatojom.pdf
    • https://cdn.sqhk.co/sononipo/GibBewZ/pitipoz.pdf
    • https://cdn.sqhk.co/sidamebo/xGzyicL/instagram_fonts_generator_symbols.pdf
    • https://static.s123-cdn-static.com/uploads/4368951/normal_5ff65654c35f2.pdf
    • http://xusonawifofi.iblogger.org/create_org_chart_google_sheets.pdf
    • https://cdn-cms.f-static.net/uploads/4459470/normal_602effe923a45.pdf
    • http://sazulido.medianewsonline.com/kumumujitixapuledikojur.pdf
    • http://vesajob.getenjoyment.net/57795040665.pdf
    • https://static.s123-cdn-static.com/uploads/4426810/normal_5ff1f613beb8e.pdf
    • https://cdn.sqhk.co/tuparesoxaj/jcghjaE/latest_android_version_for_samsung_galaxy_s3.pdf
    • https://cdn.sqhk.co/zidulibu/fifNnii/21601689364.pdf
    • https://cdn.sqhk.co/lokiwejawe/hgucja3/64401372577.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/61fb4d28-a18d-4a35-a71f-ef95b0d40f8a/what_is_the_best_book_on_marriage.pdf
    • https://uploads.strikinglycdn.com/files/aa8f7bc6-07eb-4ed5-b983-a13113fb990f/vokagivijojibesub.pdf
    • http://jarexuvi.epizy.com/rules_of_attraction_simone_elkeles_quotes.pdf
    • https://uploads.strikinglycdn.com/files/368ade76-eba0-4881-be4a-e4b6263acf21/rukefenadekor.pdf
    • http://nipuvaxakaxini.epizy.com/rheem_tankless_water_heater_start_up.pdf
    • http://kinamanerat.epizy.com/makkar_ielts_academic_writing_task_2_download_2020.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f823.bin
6a2ee2965642b1358c341092389994e626a1bfad884ac7be5ed2a2f7d77fd9e8
pdf-font-stream PDF embedded font (sfnt) at offset 0xF823 5128 bytes
font_01_sfnt_off00010982.bin
d2c9ae9444d6d9453ccb5e0fb50823e51979a94f0bc788368e41325293086be6
pdf-font-stream PDF embedded font (sfnt) at offset 0x10982 11460 bytes