Malicious PDF — malware analysis report

Static analysis result for SHA-256 26d723a955a7e84b…

MALICIOUS

PDF

83.5 KB Created: 2021-03-04 19:15:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0fd8ec17e177f5680274c40588db3e16 SHA-1: 51e7f2278fa84134c117daa890cbc990084d7830 SHA-256: 26d723a955a7e84bf1e9817c9517930a066319b6f95ad276f3130492494d3c0e
186 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/award?keyword=what+does+it+mean+when+your+whirlpool+washer+says+sud PDF link annotation
    • https://ninuxegomozul.weebly.com/uploads/1/3/1/8/131871835/013d5dbc9d8cf5.pdfIn PDF document text
    • https://cdn.sqhk.co/litazujizime/jimQhix/puvopunoxeju.pdfIn PDF document text
    • http://wosozage.mypressonline.com/monutotijifufabinokalop.pdfIn PDF document text
    • https://xenesadu.weebly.com/uploads/1/3/0/7/130739949/2508926.pdfIn PDF document text
    • https://cdn.sqhk.co/tatiderubota/hagciiR/tv_nfl_games_tonight.pdfIn PDF document text
    • https://gufekesunix.weebly.com/uploads/1/3/4/8/134888283/2338354.pdfIn PDF document text
    • http://topukovatawosu.sportsontheweb.net/masterbuilt_electric_turkey_fryer_and_seafood_kettle_parts.pdfIn PDF document text
    • http://turodes.iblogger.org/sams_club_members_mark_grill_review.pdfIn PDF document text
    • http://sagedix.medianewsonline.com/who_is_doing_free_covid_testing_near_me.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d4e0ba7-d11c-48d8-917c-1dda9bf2b6fd/xonataderox.pdfIn PDF document text
    • http://punexowimuseva.epizy.com/tension_pole_shower_caddy_directions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a8a16fc-3a80-4e53-9f66-66e34c8c6891/59243594634.pdfIn PDF document text
    • http://momibur.rf.gd/how_to_change_daylight_savings_on_g_shock.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10fd7f2a-c39c-42b7-ab56-dc133e01aa96/live_life_before_life_leaves_you_meaning_in_marathi.pdfIn PDF document text
    • http://tapoloferazuziw.atwebpages.com/gem_of_the_ocean_full_play.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7235a2a5-b9b0-45cf-ba3d-3ffc68340546/biology_genetics_review_worksheet_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d03d6d8-7a19-4826-960b-5f729324a1c4/638933318.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f52297c6-2f8b-4188-8eb8-582e0d69d701/73552762894.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_off000109c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109C0 5408 bytes
SHA-256: a9f59d93291478ab31e20035ce762f426dce7cf60bfef7e2979856b06ea12b11
font_01_sfnt_off00011c10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C10 10704 bytes
SHA-256: 4014026e3bc188d43a27c8e5d8566f1452d7b808f69f125be995da7f94ba09bd