Malicious PDF — malware analysis report

Static analysis result for SHA-256 00470e1dca5c009b…

MALICIOUS

PDF

100.4 KB Created: 2021-02-25 01:46:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: c778b84cfccef29d4d82e278751734a3 SHA-1: bc73e64224aee0bfaafc5a1af82b0e40869de247 SHA-256: 00470e1dca5c009bbe62dea221e1e9a0abb5fe59ed1af04e0c6c6be34d07b4f7
126 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one prominent URL suggesting a phishing lure related to 'xfinitywifi network security key'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to trick users into visiting a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jacksth.ru/strik?utm_term=xfinitywifi+network+security+key PDF link annotation
    • http://zexaribamemavi.sportsontheweb.net/xajakutabudivaki.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/jack_reacher_full_movie_streaming_free.pdfIn PDF document text
    • http://wejowadizabudex.mypressonline.com/the_logical_song_supertramp_tab.pdfIn PDF document text
    • http://golixudib.mypressonline.com/how_much_is_a_soda_machine_worth.pdfIn PDF document text
    • http://dumubemajizukov.medianewsonline.com/excel_vba_function_call_on_left-hand_side_of_assignment.pdfIn PDF document text
    • http://daludaja.getenjoyment.net/whats_the_money_cheat_code_for_gta_5.pdfIn PDF document text
    • http://lixorajepidil.mygamesonline.org/howls_moving_castle_wallpaper_engine.pdfIn PDF document text
    • http://xepidenad.scienceontheweb.net/96752813433.pdfIn PDF document text
    • http://bidizujimon.getenjoyment.net/wuwexagipiji.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • http://sutexuvidag.myartsonline.com/how_long_to_read_the_handmaids_tale.pdfIn PDF document text
    • http://bijiwamosijiw.epizy.com/bergey_s_manual_classification.pdfIn PDF document text
    • http://kakasis.onlinewebshop.net/fijuwepolakosikuxenoraki.pdfIn PDF document text
    • http://sasukagisodubex.onlinewebshop.net/73050349250.pdfIn PDF document text
    • http://nexaware.epizy.com/80779483184.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off000154d8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x154D8 26368 bytes
SHA-256: 4f32e512c9778b70a4d0e9e522a813fa2a58d252e241ff3066327fce2e6a7c8b
font_00_sfnt_off000110bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110BD 4868 bytes
SHA-256: cca26c77f4f62ff4be4bd90bcd85fec428d84c68de5c68d424ced7b31fec3661
font_01_sfnt_off00012178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12178 3052 bytes
SHA-256: 41eab73d62668ba066282017424436b21010b9cac3a213fa5b6de2f8764237bd
font_02_sfnt_off00012d81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D81 11464 bytes
SHA-256: e5708d111a0b8b16621ac180c4568875dea2cb9551c345a7d541ad164684a1e6

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