Malicious PDF — malware analysis report

Static analysis result for SHA-256 2298bdc359582f5a…

MALICIOUS

PDF

86.3 KB Created: 2021-04-15 23:13:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1df386c0b3eb24245886044ea012dd4c SHA-1: 701d2e83595999e22d1c3804076482274e679adc SHA-256: 2298bdc359582f5a3fdf848856ff9d75e20b398820ddfc56a48b4f7af6e02ab1
116 Risk Score

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. It uses a callback-phone (TOAD) lure. 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 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://soxebez.ru/strik?utm_term=xbox+360+controller+wireless+to+wired+convert PDF link annotation
    • https://cdn.sqhk.co/kivipemo/Dvidgjl/android_nougat_32_bit.pdfIn PDF document text
    • http://maska-respirator.shop/300393055587vpqz.pdfIn PDF document text
    • https://cdn.sqhk.co/lasukojizix/djd7Qhh/mujuxakukevadinevode.pdfIn PDF document text
    • http://clubstore.pro/battletech_gameplay_2020tnpj7.pdfIn PDF document text
    • http://nowojamedomi.22web.org/sutebegotobagazafaxaba.pdfIn PDF document text
    • http://lovewaits.ru/how_to_replace_a_magnetron_on_a_microwavevi580.pdfIn PDF document text
    • https://cdn.sqhk.co/vivokunavu/jjNDGI3/fovokaratisolivoz.pdfIn PDF document text
    • http://lawyer-consult.ru/daralijafidisejikajabolatopwr0.pdfIn PDF document text
    • http://spindlndou.space/demusazupefupetiginefijuzowirs.pdfIn PDF document text
    • http://jofarofuwudeveb.66ghz.com/force_table_lab_report_conclusion.pdfIn PDF document text
    • http://realwockyc.info/asus_xonar_dg_driver_windows_10_downloadgbird.pdfIn PDF document text
    • http://reduslim-officialsite.site/pobawenedirazupapeabf5l.pdfIn PDF document text
    • http://rokagovisalojop.iblogger.org/pharmacotherapy_casebook_instructor.pdfIn PDF document text
    • http://tgesheff.xyz/bojemufuruwifudesokellx4pe.pdfIn PDF document text
    • http://hydrofthol.space/rirotejededqgi8u.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/sorapobuk/half_blood_prince_draco_quidditch.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/gofiropitalijefizarasado.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/iliad_investor_relations_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/gmp_inspection_report_fda.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/33959191362.pdfIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/soleus_air_8000_btu_portable_air_conditioner.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_off00011162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11162 5520 bytes
SHA-256: 7b81b972916a329e5bd7a7ccedff5225aec5aa98c1b2d73948b0da4ae0cc2065
font_01_sfnt_off00012448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12448 11480 bytes
SHA-256: 0c79e040fea9a81f6e03f21afddf1d462faf6dc8df3d905000c78480e33a859a

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