Malicious PDF — malware analysis report

Static analysis result for SHA-256 735370837f83dabb…

MALICIOUS

PDF

69.3 KB Created: 2021-02-07 02:44:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4363698b257ed870fe83f24a905ff824 SHA-1: b141a04de88e91ed26bb56794ee9e363247d2523 SHA-256: 735370837f83dabba8d41a9990a2077cbc126342745b4d09b14f8e6cbec8d90b
134 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=coweta%20fayette%20emc%20report%20power%20outage PDF link annotation
    • https://cdn.sqhk.co/remowiwa/KlRQqjf/mini_town_summer_theme_park_outfits.pdfIn PDF document text
    • http://prazdnikprosto.ru/fudezozabetemavikezbc8w.pdfIn PDF document text
    • http://letgtma.bid/yamaha_big_bear_400_manual_download1unhw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409122/normal_5ff15dedf17a4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449618/normal_5fcea29cb8b80.pdfIn PDF document text
    • http://gatorama.fun/fenojimeluje0xoam.pdfIn PDF document text
    • https://cdn.sqhk.co/zanudiwageg/oHhbigz/extreme_car_driving_2_mod_apk_unlimited_money.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406812/normal_601e7879752cb.pdfIn PDF document text
    • http://kupivse.xyz/red_ball_hero_adventure_online1r8o7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449615/normal_5feb88b5da8c8.pdfIn PDF document text
    • https://cdn.sqhk.co/sijiposago/jiyUTQq/little_alchemist_time_combos.pdfIn PDF document text
    • http://lami-lashes.site/92841893704orjpd.pdfIn PDF document text
    • https://cdn.sqhk.co/zikonidenijo/Lmtjeha/cars_for_sale_mn_under_10000.pdfIn PDF document text
    • http://paringljkf.com/fuzajuzisifudamezimemnlv2e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fepoxojosatomu.epizy.com/carbohydrates_digestion_in_ruminants.pdfIn PDF document text
    • http://toramowajo.epizy.com/transformers_revenge_of_the_fallen_autobots_ds.pdfIn PDF document text
    • http://denuvifateve.epizy.com/stacy_s_mom_parents_guide.pdfIn PDF document text
    • http://jotikovan.rf.gd/29442620937.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_off0000d39c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD39C 5224 bytes
SHA-256: 75fcb5f7a6429e1d892793870e5d54741acd6924ebc9f4cc6ad2ee5230692faf
font_01_sfnt_off0000e573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE573 10116 bytes
SHA-256: 3e901b86559c7ba843492bbdeba47c510fcf38c5178c8a077385ec4a13df4396