Malicious PDF — malware analysis report

Static analysis result for SHA-256 67d4422a170b2f9c…

MALICIOUS

PDF

76.1 KB Created: 2021-03-06 00:06:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c1daf43e79e69d17e56ac541eeb31d17 SHA-1: 0731c9560ea9c3b918e6216e55fd2c505d22d958 SHA-256: 67d4422a170b2f9c3aad9161d2864ea18612bc9f5067978540bf33cd3946601c
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 and an ML classifier, indicating malicious intent. It contains numerous embedded URLs, with at least one, 'https://baarspo.ru/wix?keyword=garfield+county+warrant+list', appearing to be part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text related to 'Garfield county warrant list', suggesting a lure to trick users into visiting the malicious URLs.

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://baarspo.ru/wix?keyword=garfield+county+warrant+list PDF link annotation
    • http://libidisebosuv.22web.org/university_swot_analysis.pdfIn PDF document text
    • http://lixidavek.22web.org/54008843416.pdfIn PDF document text
    • http://fumegowo.iblogger.org/62786643611.pdfIn PDF document text
    • https://cdn.sqhk.co/rozesivotix/Ykic1ja/dream_player_for_android_tv_apk_crack.pdfIn PDF document text
    • https://cdn.sqhk.co/nobutowug/ihjhbmj/metal_slug_code_j_date_de_sortie.pdfIn PDF document text
    • http://powojisanenod.iblogger.org/pta_chair_report_agm.pdfIn PDF document text
    • https://cdn.sqhk.co/puxolika/fugfr24/when_will_cruise_ships_sail_again_royal_caribbean.pdfIn PDF document text
    • https://xajasirofoxuki.weebly.com/uploads/1/3/5/3/135330212/rikejoxosemu.pdfIn PDF document text
    • https://mijonuguvozu.weebly.com/uploads/1/3/1/8/131871478/raragi.pdfIn PDF document text
    • https://cdn.sqhk.co/rotexopapi/ZjiLsdL/kart_racing_products.pdfIn PDF document text
    • https://sipizoreju.weebly.com/uploads/1/3/4/1/134131451/xitib_soken_wukemabezo_zidokenuvonok.pdfIn PDF document text
    • https://cdn.sqhk.co/midusuworab/jgheidM/tuzoxipunerukesepatete.pdfIn PDF document text
    • https://nubavusixid.weebly.com/uploads/1/3/5/3/135348304/2dc3522ae9.pdfIn PDF document text
    • https://cdn.sqhk.co/tinulafi/AhhhhW7/sizadivigaro.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://runesufosufej.rf.gd/afunika-_nakulalolela_video.pdfIn PDF document text
    • http://ginokiximoz.rf.gd/38905122013.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/wegefamuwarajuzosixake.pdfIn PDF document text
    • https://s3.amazonaws.com/debamijizozexo/al_quran_arabic_bangla.pdfIn PDF document text
    • http://zilokujidetomo.epizy.com/spider_man_comics_ebook_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tuletivotarupu/live_wallpaper_landscape_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/fashion_designer_portfolio_template_free.pdfIn PDF document text
    • http://sefogapilaz.epizy.com/what_is_the_main_theme_of_the_yellow_wallpaper.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_off0000e4fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4FA 5240 bytes
SHA-256: ad26d6bf7a8a399507112229ab70b747034422ad3b813a6291470df3b9e4f34c
font_01_sfnt_off0000f6f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F6 14216 bytes
SHA-256: 30a73cfe24fded7e88471e035b907d8cf7ea574d24f2daf6dce83130ce1264e8

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