Malicious PDF — malware analysis report

Static analysis result for SHA-256 d61add4bfab816ab…

MALICIOUS

PDF

41.8 KB Created: 2020-11-07 16:19:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 481fd2a4c71bf85f1cfb3b43f3391554 SHA-1: c50c46d369c323d2a675e01899819d61eb91700f SHA-256: d61add4bfab816abfaa2c6a6c7c1a423c5ae7d11c19fec5d08da7b997ac03b0e
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafffi.ru/123?keyword=harris+lake+park+boys+basketball PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367621/normal_5f8a96fb6b26f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454179/normal_5fa4641c5b833.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371808/normal_5f8e399727375.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408878/normal_5f9e7aebe444f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382406/normal_5f90af61deee3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://juvibix.files.wordpress.com/2020/11/wazasusegupaxusijip.pdfIn PDF document text
    • https://fizafadolozu.files.wordpress.com/2020/11/31713389540.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c6b7df8-bff6-4e8e-8ef9-b4e6a7578332/pixipuvodunuku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a39ac2a-dfac-4f22-8409-65324240748b/fulofobekadakox.pdfIn PDF document text
    • https://wipijituwo.files.wordpress.com/2020/11/21383294300.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/6915183092.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/kujikimora.pdfIn PDF document text
    • https://metabufag.files.wordpress.com/2020/11/scorpion_king_2_full_movie_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/98186413805.pdfIn PDF document text
    • https://sufuvuse.files.wordpress.com/2020/11/3074016501.pdfIn PDF document text
    • https://pazeden.files.wordpress.com/2020/11/86767518253.pdfIn PDF document text
    • https://karepoxazul.files.wordpress.com/2020/11/the_vampire_diaries_book_1_summary.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000597d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x597D 4760 bytes
SHA-256: c4c92098ae7843c7ea4441344be60a044070b372a614eb78e370eb6b63a26f4e
font_01_sfnt_off000069b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B5 9932 bytes
SHA-256: e231f9cc82520afd4cae409af2b398eb840bdd9c4f3b4653d242709b40ca7d58
font_02_sfnt_off00008b9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B9A 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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