Malicious PDF — malware analysis report

Static analysis result for SHA-256 000fc5c5a7e47a9f…

MALICIOUS

PDF

44.4 KB Created: 2020-09-16 21:57:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9fabdc42d8e8a410704951269270dbf SHA-1: aeb92f1b50935ba20f3a59b52d40d637eebf7c17 SHA-256: 000fc5c5a7e47a9ff86235fbd05a11fa7cbce7f517ad9a4384ac13558c65544b
154 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.me/wix?keyword=%25EC%2595%2588%25EB%2593%259C%25EB%25A1%259C%25EC%259D%25B4%25EB%2593%259C+adobe+flash+player+11+apk
    • http://files.grammalink.org/uploads/1/3/1/4/131453018/lakilipezamarod.pdf
    • http://bixomobus.eatingwellisthebestrevenge.com/uploads/1/3/1/3/131398332/jafovamor.pdf
    • http://dosig.shivakannan.me/uploads/1/3/0/7/130776445/5243961.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://0af14f5c-ca22-4bc2-8646-5af6df61b7f8.filesusr.com/ugd/2dbf5a_70b2149578384cf799e4ca1a5e58474a.pdf?index=true
    • https://60e07c24-0657-45af-b5f2-f93f3dbe94c2.filesusr.com/ugd/daca0d_a8ded93e0bf745b592c9b3380cae5dc0.pdf?index=true
    • https://c998a909-3c9e-414e-bdb5-ea5d748d6de6.filesusr.com/ugd/e3ff21_c657ce867c0c4793b9ba47c65d8db486.pdf?index=true
    • https://d3512314-0a3d-4b19-b85d-0cf7d3d214a5.filesusr.com/ugd/738632_12c8c7bdf9064c62ba84114e036820b6.pdf?index=true
    • https://396eb942-3df9-480f-abaa-1e170cc7edd3.filesusr.com/ugd/b5472a_de639caa079845cc89bc59aa7c1b2c78.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0430/7877/9047/files/pijotasijanolufujusofif.pdf
    • https://cdn.shopify.com/s/files/1/0433/7909/7758/files/lagalawuzo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8862/5316/files/cv_resume_template_word_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/2457/9736/files/44135902034.pdf
    • https://cdn.shopify.com/s/files/1/0433/8004/8023/files/formato_revision_adhesiva_amparo_indirecto.pdf
    • https://4dced4cc-f675-49d4-ab46-4312946daa17.filesusr.com/ugd/49f5ef_f3cd2770f8dd42acba0e8d9024ab6d3d.pdf?index=true
    • https://f3f4038c-14f7-4067-a954-768afae3284e.filesusr.com/ugd/7c1f05_cdbd09bedc1146bb8fa5a156f1ee3105.pdf?index=true
    • https://5f676ef3-4719-4c71-a4e8-88143b68ebe7.filesusr.com/ugd/26481d_e1511075beaf4f44b3baeb8b32d027ab.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000610f.bin
6a8d33c1f3d493ec21d0219057f03a5c24c711d5a9fc7e0af084f41b6f2e0bca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x610F 3324 bytes
font_01_sfnt_off00006cd6.bin
186578b50610f5d58b552109fe762595ca0f124b67c6f70d0d53312c819c10ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD6 5392 bytes
font_02_sfnt_off00007f28.bin
18059f714fce3a47cc9d7f64e7bd1db653c74c79a340375341acfb97dc287b70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F28 10192 bytes

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