Malicious PDF — malware analysis report

Static analysis result for SHA-256 5105a667aa6b4488…

MALICIOUS

PDF

74.2 KB Created: 2021-02-17 20:45:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3eef8ee00a14a21efb4813c70c22c852 SHA-1: 359e6657569afb88c6664991b8c6e7ea73ecdb47 SHA-256: 5105a667aa6b44889de052af73adceeb819a5552268303d351ad19beafcda93b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://jottigo.ru/wb?keyword=lotos%20ltp5000d%20plasma%20cutter%20tips PDF link annotation
    • https://cdn.sqhk.co/papedajapej/gCIHjjT/welcome_to_the_future_old_man.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393631/normal_5ff4628d72547.pdfIn PDF document text
    • http://bilabugova.iblogger.org/marvel_avengers_alliance_redux_alpha_3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420468/normal_600b6380f12b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417995/normal_60273ce81918d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392199/normal_5ff2631462d04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375350/normal_600f523bc412a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4531523/normal_600faa6cdd18e.pdfIn PDF document text
    • https://cdn.sqhk.co/wusirilunoko/M5giShf/slapping_sound_effect_mp3_free_download.pdfIn PDF document text
    • http://zipufofofize.22web.org/d-_link_dsl_2750b_adsl_setup_guide.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/fikuvine/be_going_to_exercises_with_answers.pdfIn PDF document text
    • http://wuparol.epizy.com/anime_wallpaper_engine.pdfIn PDF document text
    • http://lununobasafino.rf.gd/calendar_invite_meeting_template.pdfIn PDF document text
    • http://zasufogokalo.rf.gd/autodesk_building_design_suite_premium_2014.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/comparative_adjectives_and_adverbs_worksheets.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_off0000e14d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14D 5428 bytes
SHA-256: d96aeeab6f3a6b702f59c71cad0c90b6d66e32a0c6acf689f90cf94c3a8beac1
font_01_sfnt_off0000f3b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B2 11444 bytes
SHA-256: e54594c3dd1a986de1a67c41f476332b3039bee9786bc0c36efe86c9ae2b6c0a