Malicious PDF — malware analysis report

Static analysis result for SHA-256 14b5cddd303ac00c…

MALICIOUS

PDF

71.7 KB Created: 2021-02-27 22:01:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cab34c2215a3d3c52c1b14a1718aea17 SHA-1: 1c98514ef8bedd53ac4186667489f36a94110f24 SHA-256: 14b5cddd303ac00cf4638cc2ad09e74a97929500a9124eb31b25ba2039338e69
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/award?keyword=questions+to+ask+marriage+counselor PDF link annotation
    • http://pasetbs.xyz/5141048523455f5u.pdfIn PDF document text
    • http://rilomenininun.getenjoyment.net/zixaj.pdfIn PDF document text
    • http://manamuposa.getenjoyment.net/everstart_maxx_3_amp_6v_12v_automotive_battery_charger_bc3e.pdfIn PDF document text
    • https://liberiloro.weebly.com/uploads/1/3/4/5/134589576/lodarufat-wazuzevizilu-nogazekesovorez.pdfIn PDF document text
    • http://mestorating.ru/what_is_carrier_services_app_on_android_phone9sgtv.pdfIn PDF document text
    • http://leduxebawini.22web.org/weekly_calendar_google_sheets_template.pdfIn PDF document text
    • https://pesosadat.weebly.com/uploads/1/3/4/8/134885101/folumumexa.pdfIn PDF document text
    • https://fafiwopadatomag.weebly.com/uploads/1/3/5/3/135326984/kawebina_xofiwob_tisusisomi_bowajine.pdfIn PDF document text
    • https://votujejigep.weebly.com/uploads/1/3/1/3/131380583/5937763.pdfIn PDF document text
    • https://nodeseverew.weebly.com/uploads/1/3/5/3/135323512/7022086.pdfIn PDF document text
    • http://maporirunigis.22web.org/do_infjs_and_infps_get_along.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nutimuratibuzur.epizy.com/guia_de_alimentacion_para_pacientes_diabeticos.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/19531840614.pdfIn PDF document text
    • http://zumewozuzetarun.epizy.com/accented_form_of_you_for_hagrid.pdfIn PDF document text
    • http://pipimavejolupu.rf.gd/sevegigevajafef.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/free_bookkeeping_software_for_small_business.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF38 5124 bytes
SHA-256: a12a793265eeca8c24124b42c6fb2aa27e22b22300bbd96edc44f19d2312d6fe
font_01_sfnt_off0000e08d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08D 10268 bytes
SHA-256: a71a529201c4ca3ca79c3aa205cb4d319be34a111587159ea1b72dee297e9954
font_02_sfnt_off000103b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103B5 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f