Malicious PDF — malware analysis report

Static analysis result for SHA-256 e637d40702ea50a0…

MALICIOUS

PDF

79.4 KB Created: 2021-02-11 04:46:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 167f9abcc3fad8e95613d0e04f5235f4 SHA-1: 77a0766e03cb352e7b733fcead8d08481f7e868b SHA-256: e637d40702ea50a0cabe4d7bd151fa068eeb4b694f90df08065ddcb9259ce9e2
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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://baarspo.ru/wb?keyword=hyperlink%20in%20excel%202013%20to%20another%20worksheet PDF link annotation
    • http://axecheat7.xyz/19504234163zaxta.pdfIn PDF document text
    • https://cdn.sqhk.co/bugininaxi/Xggjd7n/gekozajinipofu.pdfIn PDF document text
    • https://cdn.sqhk.co/bigulikexupa/iegjigK/76824286303.pdfIn PDF document text
    • http://dezlice.ru/73210290061f5s82.pdfIn PDF document text
    • https://cdn.sqhk.co/najiligopej/bjeQihR/unity_2d_car_physics_game.pdfIn PDF document text
    • http://opensalon.xyz/22008693511qhzlm.pdfIn PDF document text
    • https://cdn.sqhk.co/zajikeze/iihbgjq/mcdonalds_breakfast_hours_start_time.pdfIn PDF document text
    • https://cdn.sqhk.co/dovawowo/gchcZhv/zombie_invasion_flash_game.pdfIn PDF document text
    • http://graatorama.fun/lanolotagat3yegk.pdfIn PDF document text
    • http://medtechnika1.ru/79942016400bkxlv.pdfIn PDF document text
    • https://cdn.sqhk.co/gewanunu/ijgfdoe/wawulugefabopez.pdfIn PDF document text
    • https://cdn.sqhk.co/jefapukawore/kijlQs2/clash_royale_deck_building_guide_2019.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rajamuviw.epizy.com/7334084187.pdfIn PDF document text
    • http://wefazor.epizy.com/75711438666.pdfIn PDF document text
    • http://befakugidutoj.rf.gd/sosikis.pdfIn PDF document text
    • http://zowipazivavi.epizy.com/nijowe.pdfIn PDF document text
    • http://borovob.epizy.com/wukina.pdfIn PDF document text
    • http://bejuxufuvojofa.rf.gd/hot_dance_dj_mix_song.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_off0000f5c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5C6 5796 bytes
SHA-256: 8020bf90b65006d53570c53e89441ca66372eff83a8f5d95fd70d97838c3d70f
font_01_sfnt_off0001099d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1099D 11360 bytes
SHA-256: cabc7e435b0eee7992f66a5030fb30f41d7476a38e99878db239c75f5864815e