Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee6c1ab4e1f0edcc…

MALICIOUS

PDF

72.1 KB Created: 2021-03-25 00:10:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7557aac3151957cc5c9226ac5bf06dc3 SHA-1: b1588bc297c962b8f60c9ff74cd8f9384db96711 SHA-256: ee6c1ab4e1f0edccbe5f9a19ef8f5f9a0ba145c4354a5e40a109af2f2e3c5311
116 Risk Score

Malware Insights

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

The file is a PDF document that contains a lure related to a 'Baby gap snowsuit sale'. It embeds external URLs, one of which is identified as a callback phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to a phishing site or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://zajinet.ru/strik?utm_term=baby+gap+snowsuit+sale
    • https://cdn.sqhk.co/tefupudoma/5vicoje/34686174006.pdf
    • https://static.s123-cdn-static.com/uploads/4401971/normal_5fc5bc3723fa0.pdf
    • https://cdn.sqhk.co/pujixefan/dbRmMif/video_status_song_download_new.pdf
    • http://melomone.scienceontheweb.net/learning_python_2020_free_download.pdf
    • http://badoxik.scienceontheweb.net/altera_fpga_tutorial.pdf
    • https://cdn-cms.f-static.net/uploads/4427795/normal_600f1f3e997d0.pdf
    • https://cdn.sqhk.co/wepiwojeta/giKzhb5/zumiv.pdf
    • http://xulazawelinuze.scienceontheweb.net/gusodarebupotuji.pdf
    • https://cdn.sqhk.co/bedimiwojam/WjeI95P/jumarigixasivowi.pdf
    • https://cdn.sqhk.co/feripamapuv/YVHzYii/sudajezezekek.pdf
    • http://dizofuses.mypressonline.com/the_bronze_horseman_book_2.pdf
    • https://static.s123-cdn-static.com/uploads/4408172/normal_5fce1800a64e4.pdf
    • https://cdn.sqhk.co/loberutebe/iqidXMB/6219620206.pdf
    • https://cdn.sqhk.co/wexovezojab/cgePif6/download_balls_brick_breaker_for_pc_free.pdf
    • http://tamasolesodaj.mypressonline.com/thanthi_today_news_paper_in_tamil_download.pdf
    • https://cdn.sqhk.co/zogowefu/hfBjaNW/red_balloon_chicago.pdf
    • https://cdn.sqhk.co/livefivepa/gW9ijhg/32840043629.pdf
    • http://vexasefagi.scienceontheweb.net/what_does_blinking_red_light_mean_on_lg_tv.pdf
    • https://cdn.sqhk.co/jivumigen/WJzghjg/snake_in_toilet_uk_2020.pdf
    • https://cdn-cms.f-static.net/uploads/4496584/normal_605b3e019cd35.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wetevali/nulopijaxi.pdf
    • https://s3.amazonaws.com/nojemi/wipufudi.pdf
    • http://besafetusupug.atwebpages.com/ejercicios_de_lectoescritura_para_segundo_grado_de_primaria_para_imprimir.pdf
    • http://vorisenunajix.myartsonline.com/adobe_reader_free_download_full_version_for_windows_7.pdf
    • https://s3.amazonaws.com/kelukakeb/kogepefusedi.pdf
    • https://s3.amazonaws.com/kodipopujufipig/bauhaus_latin_font_apk.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • https://www.gap.co.uk/gap/baby-coldcontrol-ultra-max-snowsuit/000592811.html
    • 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_off0000d8e3.bin
a4f483e64d23846d3573a1b1d8c78065e9f5ecc04936076f8cfa2e0cd5c5e9a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E3 5276 bytes
font_01_sfnt_off0000eb00.bin
23c66ba9852272a1096827acb769edc67906bbdf0510128a7e3782bfc5a28653		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB00 11388 bytes

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