Malicious PDF — malware analysis report

Static analysis result for SHA-256 41754b4fe88a70da…

MALICIOUS

PDF

69.1 KB Created: 2021-02-11 16:56:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7e194068d680694c7c0a2b7a709e952f SHA-1: ec7e9fb67cc0731d6449daa4ae15ddcdbdd24c7e SHA-256: 41754b4fe88a70da850ea50cc24a878a3d06cfb645f3bbcfee1371e21d9fc43d
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://maypoin.ru/wb?keyword=geography%20map%20skills%20worksheets%20ks3 PDF link annotation
    • http://znasila.ru/gta_5_cheats_xbox_360e7r50.pdfIn PDF document text
    • http://ezfix.asia/74759292368d2ni6.pdfIn PDF document text
    • https://cdn.sqhk.co/vinusubat/Cshc1El/1890686667.pdfIn PDF document text
    • https://cdn.sqhk.co/pigalixow/0t0QL2h/youtube_music_eagles_best_of_my_love.pdfIn PDF document text
    • http://rm-swis-mine.com/coc_clash_of_clans_apkyzqjc.pdfIn PDF document text
    • https://cdn.sqhk.co/butemobe/iaCUrep/earth_3d_globe_map.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/fCo1cgc/honey_bbq_drumsticks_air_fryer.pdfIn PDF document text
    • http://triple-doska6.club/spanish_prepositions_of_place_worksheetocfk6.pdfIn PDF document text
    • http://autobaff.xyz/panixifipa7nk5u.pdfIn PDF document text
    • http://mugedly.xyz/vedic_astrology_books_free7eme7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374696/normal_6007e4b0e8065.pdfIn PDF document text
    • https://cdn.sqhk.co/kululojilo/7xk9K8K/dial_911_simulator_mod_apk.pdfIn PDF document text
    • http://50off.pro/963925183081r1lp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413590/normal_5ff8d7f5bc4af.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/damerirazib/cash_flow_from_investing_activities_balance_sheet.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_off0000d1ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1AB 5688 bytes
SHA-256: 32079bf9d6cf3cd78cdf92e0fc47aefa35f868a7abe8a16090180a70fde8e6d5
font_01_sfnt_off0000e4fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4FB 10104 bytes
SHA-256: f4f3734184f1f9d7e8f0038de17108e25c971b43c3f670b46743225031cc3497