Malicious PDF — malware analysis report

Static analysis result for SHA-256 23850654dddf06eb…

MALICIOUS

PDF

81.2 KB Created: 2021-02-11 16:16:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: fed8a9d69a68ca25d9b18dc145db9798 SHA-1: d68b6c9ca8f6873015d83b78f762f1e75cdfb6a8 SHA-256: 23850654dddf06eb76219d682701f0bbec345bf9e5077858aa2f8c8cbe007f3a
116 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The file is a PDF document flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. The 'SE_CALLBACK_LURE' heuristic indicates the document's content is designed to trick users into calling a phone number, a common tactic in phishing and tech-support scams. While no scripts were extracted, the presence of embedded URLs suggests the document may attempt to redirect users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://druttle.ru/123?utm_term=giant+steps+pdf+bb PDF link annotation
    • https://cdn.sqhk.co/xivovido/iiWKjfs/nasty_gal_promo_code_september_2020.pdfIn PDF document text
    • http://distornyup.site/meaning_of_capriform1h6eu.pdfIn PDF document text
    • http://meriline.store/17305122446vlct6.pdfIn PDF document text
    • https://cdn.sqhk.co/zimuteraf/kicjhvZ/davaparigodarakusida.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/YhernIN/paforomizov.pdfIn PDF document text
    • http://wide-take.top/4568709090510la7.pdfIn PDF document text
    • http://characduwe.space/khiladi_786_full_movie_download_onliyaseb.pdfIn PDF document text
    • http://foyou.store/dipinirizasbkaw.pdfIn PDF document text
    • http://hristogrigorov.com/navien_tankless_water_heater_instruction_manualze911.pdfIn PDF document text
    • https://cdn.sqhk.co/vopupevomate/gYHghOo/sevevofotem.pdfIn PDF document text
    • http://abwaab.su/weather_report_north_wales_ukd7qss.pdfIn PDF document text
    • http://redpandarecycling.com/cambridge_english_complete_pet_workbook_answersan4nl.pdfIn PDF document text
    • http://lg-copyright.com/conduction_convection_radiation_evaporation1xix1.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/tonemakopinibem/91784657890.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/minidivevevesusutanibam.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/appraisal_form_2055.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/13681893360.pdfIn PDF document text
    • http://tozoxefig.rf.gd/widiwabaxosiwulimidelu.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/duct_tape_single_sheets.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_off0000ffd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD0 5080 bytes
SHA-256: 0051aa9d80020d4844fb99e0fa0cc8816146fe3525f90051d69461f15560816f
font_01_sfnt_off0001112e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1112E 11184 bytes
SHA-256: 4ef9a24cb3ba74f99e830463015a71af50d3311aee1d10e393fe361ab99c0c8d

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