Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea150ebabad0d72d…

MALICIOUS

PDF

38.9 KB Created: 2020-10-30 10:50:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3a5a92572e5cfb0c2870d8fdb5b6458f SHA-1: 11a9ed003b084e730df199e855b43d978bda9a5a SHA-256: ea150ebabad0d72deed582c97ce7f81a50410d63339e11e0dedf60be0442afa1
124 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 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=david+rossi+wife In PDF document text
    • https://nijubalalo.weebly.com/uploads/1/3/1/4/131453980/sewewemelituxo_zejobibosezoloz_sisokepaz_tozimibosolofo.pdfIn PDF document text
    • https://fusesekomufe.weebly.com/uploads/1/3/1/6/131606177/8316043.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369769/normal_5f979d79c1453.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370062/normal_5f88b006a2858.pdfIn PDF document text
    • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/vikisetifi.pdfIn PDF document text
    • https://rixokofumi.weebly.com/uploads/1/3/1/3/131380985/vupubem_tidezupiratasan_lijuf_vepoluwa.pdfIn PDF document text
    • https://numuluga.weebly.com/uploads/1/3/4/3/134307024/5ee9d304204.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/438ffe59-747e-4afa-8475-4a3e9a3f0ef3/printable_paper_rocket_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a61262f2-fc96-46ae-92ad-85ef5d067c41/78740069869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0475/3073/7830/files/ymusic_premium_apk_terbaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3179/7149/files/57734764336.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_off00005bb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB7 5020 bytes
SHA-256: 37f31a36861cfb7f3433e541dc3ac49fd614ccb2a3627e874904b6844ba95ae9
font_01_sfnt_off00006cf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF7 10244 bytes
SHA-256: 6047aad726fc98341803e304aa99d90d1c7ccac9091c5be48118a16789d2c70d

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