Malicious PDF — malware analysis report

Static analysis result for SHA-256 7630f0b9cb988df2…

MALICIOUS

PDF

67.1 KB Created: 2021-02-14 14:16:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f9330f2b34e8ae821284bb449cd3cd6c SHA-1: 5ab3c48b85a7b8627d251d401362b6df24709afa SHA-256: 7630f0b9cb988df277abaa0b376c9fddc4ccc9354f7fa1d07fab30c20f2f91bb
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://jottigo.ru/wix?keyword=minor+hill+school+minor+hill+tn PDF link annotation
    • https://cdn.sqhk.co/vajegipofuz/DNyhjgi/bass_pro_shop_hours_of_operation.pdfIn PDF document text
    • http://remontvorot24.com/millimeter_wave_wireless_communicationsw13em.pdfIn PDF document text
    • http://trylait.club/bhoomi_songs_mp4_freelu9w5.pdfIn PDF document text
    • http://gikisivota.iblogger.org/apache_tomcat_7_server_for_linux.pdfIn PDF document text
    • https://cdn.sqhk.co/xivovido/niargel/dafesupiwajizufunig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378167/normal_601103f0405f1.pdfIn PDF document text
    • https://cdn.sqhk.co/suxepemup/bxjhAVD/spectrum_analyzer_theory_and_applications.pdfIn PDF document text
    • http://fruitslope.online/allotment_letter_format_under_maharerag6kd6.pdfIn PDF document text
    • https://cdn.sqhk.co/xipepovivik/jjd3hge/telehealth_physical_therapy_across_state_lines.pdfIn PDF document text
    • https://cdn.sqhk.co/kososojog/jcDeahf/can_t_repost_instagram_story_with_music.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380545/normal_5fc688792a2b8.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://pasazaxara.rf.gd/netflix_apk_mirror_android_tv.pdfIn PDF document text
    • http://tunemajemopetuv.epizy.com/dukuxigutanas.pdfIn PDF document text
    • http://togugufi.epizy.com/baana_kaathadi_songs_free_masstamilan.pdfIn PDF document text
    • http://pokogasojogev.epizy.com/fabag.pdfIn PDF document text
    • http://juzefabamurever.rf.gd/rikesufif.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_off0000bead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEAD 4504 bytes
SHA-256: b0f7a7b459e5963e393d4ca2d0b852c8f98702d69771c1b17b118670ab07a01a
font_01_sfnt_off0000cdb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDB9 10484 bytes
SHA-256: d1222c75d12379939fe0dfc2b582e6415fed81fadcdb0cac0a6bdc1a7679f893
font_02_sfnt_off0000f192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF192 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f