Malicious PDF — malware analysis report

Static analysis result for SHA-256 f14741ab9539e8bd…

MALICIOUS

PDF

63.3 KB Created: 2021-03-03 19:39:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 79fa800212fae03f9b42f17df77a448d SHA-1: abaa6f3c08727896a5a9aa08d2bae7c712435372 SHA-256: f14741ab9539e8bd7eb338011155fc61b9e5da13ee61b4111570b7db94d0a836
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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/wix?keyword=dante+cosplay+black PDF link annotation
    • https://cdn.sqhk.co/laxefotogulo/cnv6Dz5/ms_word_blocksatz_letzte_zeile.pdfIn PDF document text
    • https://cdn.sqhk.co/zupuguvawaj/Cjhjfhh/how_to_type_e_with_accent_capital.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424645/normal_601bc36d553b7.pdfIn PDF document text
    • http://vumamanepu.sportsontheweb.net/how_to_write_a_book_summary_examples.pdfIn PDF document text
    • http://naturwows.space/7073571494674f16.pdfIn PDF document text
    • https://xexiwimelogodit.weebly.com/uploads/1/3/4/5/134593193/2695088.pdfIn PDF document text
    • https://cdn.sqhk.co/rirakibugo/dt0Lqig/73398833406.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502563/normal_603b18fda6c24.pdfIn PDF document text
    • http://kalavar.xyz/fekubamipelewakizuwo0ny3u.pdfIn PDF document text
    • https://cdn.sqhk.co/lafuwexale/ggF0Sgj/poweraudio_pro_music_player.pdfIn PDF document text
    • http://vafuvavepoti.22web.org/5868953832.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zogadawedalifap.onlinewebshop.net/fofuwawi.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_off0000bca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCA0 5136 bytes
SHA-256: 7ed3d730d6163dfd62733520cfab852622db761462c06233d8bef0c57682fbe5
font_01_sfnt_off0000ce3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE3D 10124 bytes
SHA-256: 8ff29c8bd85ade3520c7220236add3233bd94b2e017619dec45aad19b7a92eb4