Malicious PDF — malware analysis report

Static analysis result for SHA-256 578f0141b7083cc7…

MALICIOUS

PDF

78.6 KB Created: 2021-04-02 19:06:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: f876a48080cdddd231148ded91aa555d SHA-1: e716633c723bb45b3ccfbd037ab3db32f54970e6 SHA-256: 578f0141b7083cc701193ac3ddf52a36fbc325fc2390bb91b0b344ccea0f117e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document body, though heavily obfuscated, suggests a lure related to a 'Pokemon liquid crystal walkthrough guide'. The presence of numerous external URIs, many hosted on disposable domains, indicates a phishing or malware distribution attempt. The ML classifier output of 0.999574 further supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • 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://bologen.ru/strik?utm_term=pokemon+liquid+crystal+walkthrough+guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4451754/normal_5ffb0b6824da1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382190/normal_5ffcf4bf20a56.pdfIn PDF document text
    • https://gopaxeseje.weebly.com/uploads/1/3/6/0/136082610/luxuwa-nalipojisu-vipoxinoso.pdfIn PDF document text
    • https://cdn.sqhk.co/kajutizikodu/ijSfjaM/zetofawut.pdfIn PDF document text
    • https://tarezusubem.weebly.com/uploads/1/3/5/3/135386237/8128363.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/vhcczih/doom_2_gba_cheats_codes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379720/normal_601a2dbd339e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413462/normal_603ee2ab8caa6.pdfIn PDF document text
    • https://cdn.sqhk.co/tenotitur/ILUggAi/724_phone_area_code_canada.pdfIn PDF document text
    • https://cdn.sqhk.co/rijomawonuj/66JMaia/download_fashion_tycoon_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/wodelaganav/fjbTehb/all_star_soccer_ps1_rom.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/punagilelabon/descriptive_geometry_9th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/itsy_bitsy_spider_song_video_free.pdfIn PDF document text
    • http://fowasabitafal.epizy.com/glass_broken_ringtone.pdfIn PDF document text
    • http://bosadubarelazu.rf.gd/togaj.pdfIn PDF document text
    • https://s3.amazonaws.com/bejokazemur/minecraft_1._14_free_ios.pdfIn PDF document text
    • http://garamerese.rf.gd/5322587700.pdfIn PDF document text
    • http://zetusemikaso.rf.gd/esquema_ligao_ventilador_teto_capacitor_3_fios.pdfIn PDF document text
    • http://rabuvof.rf.gd/43957726534.pdfIn PDF document text
    • http://woduzubede.epizy.com/ayurvedic_books_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/search_icon_vector_free.pdfIn PDF document text
    • http://pofomabagemekut.epizy.com/besojafabud.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_off0000f382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF382 5736 bytes
SHA-256: bcf04945ba83fe94daa2d837f2542d56df0688e90c32614a75237e911a2968a1
font_01_sfnt_off000106f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106F7 11260 bytes
SHA-256: ae3ecd3d5724bd9f88d4f6304ff45016bdb15b5b507b81ffb223d13cda3ba78b

Open this report in the interactive analyzer, or submit your own file for analysis.