Malicious PDF — malware analysis report

Static analysis result for SHA-256 77d253732dc4cdd3…

MALICIOUS

PDF

81.5 KB Created: 2021-03-15 00:20:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2fe9365185335d06200f80e4ab247ac3 SHA-1: 6a58eb8fd77851fa4eeabbef9d2543db24248792 SHA-256: 77d253732dc4cdd386ac469a8e39019fa0f7ce74174618dd85c771cd301c005b
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, and it contains an embedded URI pointing to a suspicious domain. The PDF structure also indicates potential manipulation, with duplicate object bodies. The presence of external URIs suggests an attempt to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://vilenefex.ru/strik?utm_term=the+power+elite+c+wright+mills
    • http://momsmall.space/4797959017299bfh.pdf
    • http://polypak.site/rokiruxepogujho8g.pdf
    • https://static.s123-cdn-static.com/uploads/4414341/normal_5fcf6ba80ff42.pdf
    • https://cdn.sqhk.co/jifigetuxu/igjg2ic/ice_cream_places_open_today_near_me.pdf
    • https://cdn.sqhk.co/jalotenabo/ZhfkLgh/tuzob.pdf
    • http://reduslim-italy.site/jorge_luis_borges_booksd2ntq.pdf
    • http://krepezh.guru/fibinasulutiwt1af5.pdf
    • http://bbcua.site/2547818760iamr3.pdf
    • http://ribadubeko.scienceontheweb.net/free_will_brewing_kragle_ipa.pdf
    • https://cdn-cms.f-static.net/uploads/4453118/normal_600cf19571dfc.pdf
    • https://static.s123-cdn-static.com/uploads/4449417/normal_5fe575907af51.pdf
    • http://50offstore.info/7036055061764i4r.pdf
    • https://cdn-cms.f-static.net/uploads/4426556/normal_60386bcf94c8f.pdf
    • http://amorexpo.com/717105581488ur7e.pdf
    • https://cdn.sqhk.co/komagiju/jcaidjf/sideload_launcher_for_android_tv.pdf
    • http://bnl-jobs.com/how_to_make_a_fake_bookshelfapdz6.pdf
    • https://cdn-cms.f-static.net/uploads/4419441/normal_601a1a13d43cb.pdf
    • https://cdn.sqhk.co/nukunudakiju/nrygfig/video_alffy_rev_official_asian_games.pdf
    • http://topmassage.net/atlantis_odyssey_game_apkniq5n.pdf
    • http://trackengine.host/fluke_dtx_1800_otdr_manualpu6a6.pdf
    • http://ryukzak.digital/muvozabibilomad6zmwi.pdf
    • http://xosubowavenu.mypressonline.com/35596233915.pdf
    • http://lady-bug.club/fundamentos_de_enfermeria_susana_rosales_y_eva_reyes_gratis1xsa0.pdf
    • http://alifan.store/spongebob_sponge_on_the_run_netflix_release_date7lejn.pdf
    • http://com-signto5.xyz/futavofitowiziwikkr2y.pdf
    • http://vikiduxa.mywebcommunity.org/fantastic_beasts_and_where_to_find_them_book_movie.pdf
    • https://cdn.sqhk.co/madagijoj/Rheids0/1182635382.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000100f7.bin
65b4f381398aa2f9c98d7e179584c2a948cd2787efb2fa87c0fc7e16ca956771		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100F7 5176 bytes
font_01_sfnt_off00011282.bin
a70907b7b36f3959c22041207f684e6edbd6021a180fc2ad4388c32460db843f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11282 10924 bytes

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