Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ffac59d42663f18…

MALICIOUS

PDF

70.4 KB Created: 2021-02-13 13:46:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 45d72bd69c74a5e22f646ae66c716be4 SHA-1: 207b468d935437ede7b21ef68e5e3e9203409d5e SHA-256: 3ffac59d42663f182092e8d6ce66de7c35eefce4ae33af16b8bceb1f57bc40f4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://bologen.ru/aws?utm_term=anti+tb+induced+hepatitis+pdf PDF link annotation
    • https://cdn.sqhk.co/javeduner/i1pmgfX/bruce_lee_enter_the_game_hack_yeuapk.pdfIn PDF document text
    • https://cdn.sqhk.co/lisutovudaf/9geHii9/nabimujumexipowek.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367944/normal_601d83b7f32e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366654/normal_5fdb32423085a.pdfIn PDF document text
    • http://goodxday.xyz/7516604653404y0q.pdfIn PDF document text
    • http://ziweninuxepip.iblogger.org/musisijixobelowi.pdfIn PDF document text
    • https://cdn.sqhk.co/varomapit/ighggfA/sling_tv_apple_tv.pdfIn PDF document text
    • https://cdn.sqhk.co/sebixodof/jigjiat/world_of_warcraft_original_game_manual.pdfIn PDF document text
    • http://wofomeko.22web.org/beets_nutritional_information.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384819/normal_5fc948a26a34c.pdfIn PDF document text
    • http://memijijarem.22web.org/51399558993.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kusegipe.epizy.com/96564183924.pdfIn PDF document text
    • http://bexudogi.rf.gd/41759508542.pdfIn PDF document text
    • http://xezabesazigida.epizy.com/report_anti_social_behaviour_edinburgh.pdfIn PDF document text
    • http://pegesij.rf.gd/airplay_windows_10_free.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_off0000d8a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8A9 5244 bytes
SHA-256: 4b7a07aae106c4d2b4600b67cb967617b0a99812c012d94ca853814f7d872cfc
font_01_sfnt_off0000ea7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA7D 10132 bytes
SHA-256: 64abf3801fb06fd349629a604e0596eb25a47bf2293f79bb7f19a8db24ebc730