Malicious PDF — malware analysis report

Static analysis result for SHA-256 82d162b7f3b3dfe8…

MALICIOUS

PDF

77.2 KB Created: 2021-02-11 07:10:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4b677b7ecd90f4f31c810d075b76d189 SHA-1: 458970caf064c520c970de228426fc72b2156681 SHA-256: 82d162b7f3b3dfe8d815b9c7a2f06bf2e6e6cdbd64ef0dcc32e1925b32f6c316
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://maypoin.ru/123?utm_term=morgan+freeman+matrimonio+jeanette+adair+bradshaw PDF link annotation
    • https://fawurefo.weebly.com/uploads/1/3/4/4/134441885/zepefakavaba.pdfIn PDF document text
    • https://cdn.sqhk.co/wabasenenem/NDRhajj/3_doors_down_away_from_the_sun_dvd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479446/normal_5ff8d35e2ad1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427519/normal_5fd66e4b7b31a.pdfIn PDF document text
    • http://adanakebap.org/86870507126ws9x4.pdfIn PDF document text
    • http://kanshoper.site/86041168406cqf9h.pdfIn PDF document text
    • https://cdn.sqhk.co/tibakekavero/igfghib/ledawibewejegazosoziteraf.pdfIn PDF document text
    • http://womenit.space/a_kirlyn_teljes_film_magyarulqqpue.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484631/normal_5fcc47262bfc7.pdfIn PDF document text
    • https://cdn.sqhk.co/dufelogaruf/icfmgds/fuxuraregikut.pdfIn PDF document text
    • http://cardioactiveuficiale.site/590481790365k9pj.pdfIn PDF document text
    • https://cdn.sqhk.co/verikiweneza/u79ggim/54065313612.pdfIn PDF document text
    • http://menformula.xyz/13352591812rmcwd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408719/normal_5fc8b86b2d934.pdfIn PDF document text
    • http://wbigs.space/chokher_bali_novel9t8zn.pdfIn PDF document text
    • http://idealica-italiauficiale.website/xuwerobowxxefz.pdfIn PDF document text
    • http://1freedom.space/52593221591mxfk1.pdfIn PDF document text
    • https://wijirejilape.weebly.com/uploads/1/3/2/8/132816202/livuxagalawotupod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f07f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF07F 5600 bytes
SHA-256: 80eeb62afc696ccf15406150c8afbafed5dab007156d6273a238429f284346e8
font_01_sfnt_off0001037f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1037F 10816 bytes
SHA-256: 844d663cb5994298620175ad1a151fffb907590665405a05a3397307ded432bf

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