Malicious PDF — malware analysis report

Static analysis result for SHA-256 2894d01549189c6a…

MALICIOUS

PDF

52.4 KB Created: 2020-10-26 20:25:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: fab0a09118f26417ac2c45c44932db52 SHA-1: f966fc97efd354829e21f9cbf72c19c9bb157d0c SHA-256: 2894d01549189c6af37810755e2d7e28c675130be8ceba3056e9413f02488fde
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.link/pify?keyword=cassie+edwards+savage+series+pdf In PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4d5351fbb209c0.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/fawafoxatetuwej_duradozu_jixuxekum_rejejiwonupoxu.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/4918653.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/a9134212.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/dekefomivupe-kovak-talajonipa-fedebiraroz.pdfIn PDF document text
    • https://bovexojegej.weebly.com/uploads/1/3/4/4/134481742/morubevewuri.pdfIn PDF document text
    • https://zolezuborejizo.weebly.com/uploads/1/3/4/4/134444688/3717993.pdfIn PDF document text
    • https://lusewixitakotaz.weebly.com/uploads/1/3/4/3/134385759/9375084.pdfIn PDF document text
    • https://pirovosarelivo.weebly.com/uploads/1/3/1/4/131406751/kudodokiretidu.pdfIn PDF document text
    • https://jijalasigode.weebly.com/uploads/1/3/4/3/134344414/vuzajezaponagu-vuzemodip-xojetefifufo-juzediwo.pdfIn PDF document text
    • https://desaviguwogo.weebly.com/uploads/1/3/1/8/131871994/zivumepajupej-pujulorizarap.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/vovofofaverun_sawivurovoj_nifawubazox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381541/normal_5f9273fbe907d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373987/normal_5f8b2f9a69b31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376369/normal_5f8e6a96e02f9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/93abc30e-cafb-46cc-8351-3137c69bde95/aarti_kunj_bihari_ki_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18e096c9-fb95-4787-84b8-1c7e42844c9c/lojexelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8604/4054/files/old_man_and_the_sea_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8924/1258/files/nageteja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3315/0118/files/penuxakuxirezavifabigeka.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_off00008de9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE9 5236 bytes
SHA-256: e305858d5cf68e2a93734ca04c85ad9a09e077b7c5cab03bd120e4eed69a0aa2
font_01_sfnt_off00009fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FDF 10500 bytes
SHA-256: d30701777c0f72b8e4da8b0325501b13adac08a5d78a3ea7eab7e21dbc4bde35

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