Malicious PDF — malware analysis report

Static analysis result for SHA-256 9002deb0c27132cc…

MALICIOUS

PDF

72.9 KB Created: 2021-02-10 10:55:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 34ba4bcf3148e3d8a6596aeb67127342 SHA-1: 7c0ef04103ad292a18da20e4f5ddc1b0975befc5 SHA-256: 9002deb0c27132cc668181e35271b06cc0a75f882a3061c69056718216d134d9
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://leonvi.ru/wb?keyword=cd+%20g%20files%20free PDF link annotation
    • https://cdn.sqhk.co/bogabixexuja/gcjexBq/24213479990.pdfIn PDF document text
    • http://fexevosekuzavep.iblogger.org/6986956064.pdfIn PDF document text
    • https://cdn.sqhk.co/zipirevofu/BgiBAbL/marshalls_hours_today.pdfIn PDF document text
    • http://triple-doska1.club/milton_maize_maze_2020by565.pdfIn PDF document text
    • https://cdn.sqhk.co/xutujipux/EhieiiV/lolozumusatavatitada.pdfIn PDF document text
    • https://mekebibarefuj.weebly.com/uploads/1/3/5/3/135335096/3088482.pdfIn PDF document text
    • https://finazevad.weebly.com/uploads/1/3/0/7/130739247/lipojunerux_kavixit.pdfIn PDF document text
    • https://cdn.sqhk.co/nezerozara/igdDjbO/army_clash_of_clans_gameloop.pdfIn PDF document text
    • https://sedixiru.weebly.com/uploads/1/3/0/7/130740143/mogidabimosowujupo.pdfIn PDF document text
    • https://cdn.sqhk.co/mezadisedud/0fjbgiN/fold_up_deck_chairs_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/pasivuzuke/hO4sHjd/kujumitosepakivesigo.pdfIn PDF document text
    • https://cdn.sqhk.co/kinemefuwa/iDGZ5A9/top_20_bollywood_songs_2019_download_mp3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://deravamosu.rf.gd/free_android_mobile_spy.pdfIn PDF document text
    • http://dowupozor.epizy.com/breastplate_of_st._patrick.pdfIn PDF document text
    • http://munoxefarofow.rf.gd/78427684886.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_off0000e106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE106 4768 bytes
SHA-256: 947896c2f42a7d12c51efbdb4b01024f1480a221f9bbea27384eb60e80bbaf0a
font_01_sfnt_off0000f14e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF14E 11316 bytes
SHA-256: 1d7f991981bb0fc00af0bd05fb48067598a795745e9474bfa089b4a5b7cca696

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