Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9d2c85baab18f59…

MALICIOUS

PDF

69.7 KB Created: 2021-02-09 01:14:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 7778da1ff1ec357c61b499483a6ee2d9 SHA-1: 40301c0fa22096e90ed0b776d5cb513aeab4e585 SHA-256: e9d2c85baab18f5921683304dd9dca7f9fab933bfaf09cb13db46be0071a6563
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://druttle.ru/wb?keyword=plate%20tectonics%20worksheet%208th%20grade%20answer%20key PDF link annotation
    • https://cdn.sqhk.co/duxadikoti/iephj8R/waxovuludogal.pdfIn PDF document text
    • http://stixlife.info/lenovo_t430_bluetooth_drivert8gki.pdfIn PDF document text
    • http://my-favshopd.online/aprende_electrnica_y_robtica_educativaef0bm.pdfIn PDF document text
    • https://cdn.sqhk.co/medujebukoma/hZUwihc/77271983674.pdfIn PDF document text
    • http://ericksandoval.com/skylanders_imaginators_xbox_one_redeem_codern585.pdfIn PDF document text
    • https://cdn.sqhk.co/xemugugafot/5jgFjfk/73721207791.pdfIn PDF document text
    • https://cdn.sqhk.co/mugukawi/jjgYjiA/45323802454.pdfIn PDF document text
    • http://1offpark.xyz/39624579882peapo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408586/normal_5fe7d645e0457.pdfIn PDF document text
    • https://cdn.sqhk.co/gatavikap/yibifjQ/wiraduwitep.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwufupi/ibfQFgi/16581561526.pdfIn PDF document text
    • http://ludunulanara.iblogger.org/nabutiba.pdfIn PDF document text
    • http://summerita.fun/mega_bharti_2019_online_form_date_maharashtraweyag.pdfIn PDF document text
    • https://cdn.sqhk.co/sawitofi/fgjidhd/bepijumejowitinagijonas.pdfIn PDF document text
    • http://pudumalezedokav.22web.org/lesson_plan_template_word_high_school.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sekovukubetib.epizy.com/parkour_maps_in_minecraft_pe_free.pdfIn PDF document text
    • http://vomifavub.epizy.com/call_of_duty_heroes_android_apk_data.pdfIn PDF document text
    • http://fufezexu.epizy.com/alectoris_chukar_sound.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_off0000d255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD255 5656 bytes
SHA-256: 17b5f1150c75701cd84ccc5e99b7e01d0e023bd946fac35c3406b72d8095f1a4
font_01_sfnt_off0000e5a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A7 10552 bytes
SHA-256: b8d58092a811607fc657455b9d9580060613c92e0c3078ad2fd394ca68587f5c