Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec635bf3d9b9f231…

MALICIOUS

PDF

69.6 KB Created: 2021-02-25 00:39:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6d6bbf6ab3ce5e175154b803153b0ef6 SHA-1: 723cbc5d37caa21dd44e3ab820e7194f3a4c72d8 SHA-256: ec635bf3d9b9f2312b78564b2b40ef11454a5c9f7106a245097799b8a053b57d
126 Risk Score

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
  • 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/aws?utm_term=how+to+reset+code+on+schlage+connect PDF link annotation
    • http://ibkreactiva2020.com/tegomifepirewila8d331.pdfIn PDF document text
    • http://xariketixagat.mypressonline.com/niv_zondervan_study_bible_premium_leather.pdfIn PDF document text
    • http://redit.fun/klein_tools_ncvt-2_non_contact_voltage_testerxd8hd.pdfIn PDF document text
    • http://raxejudesezix.scienceontheweb.net/tracfone_samsung_galaxy_a20.pdfIn PDF document text
    • http://podarokinsta365.site/logo_pertamina_hitam_putiha1bt6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414176/normal_6032a4204950b.pdfIn PDF document text
    • http://pigigozoruda.mypressonline.com/compare_and_contrast_essay_examples_8th_grade.pdfIn PDF document text
    • https://lijepaxo.weebly.com/uploads/1/3/5/3/135324298/piritebubiniwuwari.pdfIn PDF document text
    • http://magicwoolshop.com/somedijadomugikedominc5v14.pdfIn PDF document text
    • https://zevebijupaxize.weebly.com/uploads/1/3/4/7/134754497/bipagubiva.pdfIn PDF document text
    • http://usejus.club/honeywell_thermostat_display_not_working_after_battery_changey044g.pdfIn PDF document text
    • https://vepufekuso.weebly.com/uploads/1/3/0/7/130775624/4989850.pdfIn PDF document text
    • http://small-italy.space/novezaganopabyg0j.pdfIn PDF document text
    • https://notolunezoxab.weebly.com/uploads/1/3/4/8/134846452/kusaf-kofaxafajelugow-kumuf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415739/normal_5fcc4449ce682.pdfIn PDF document text
    • https://luzenesezenobo.weebly.com/uploads/1/3/5/3/135307250/4917121.pdfIn PDF document text
    • http://wifunagidoli.mypressonline.com/norcold_refrigerator_not_working_on_electric.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bodegifu.atwebpages.com/calories_in_dunkin_mocha_swirl_pump.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_off0000d4a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A6 5252 bytes
SHA-256: 2708a0f770c0a272ee22a0dcb311a999739a430c019a100fff35de4a980b6aba
font_01_sfnt_off0000e68f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE68F 10364 bytes
SHA-256: 174d66fa22d4af13516ed245b302d75062e66da43ab064cfe487263715c0ae27