Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe04fd2115b6f8e2…

MALICIOUS

PDF

47.9 KB Created: 2020-10-16 10:21:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1564072b87c613ff15ceae0fe8df16e2 SHA-1: 6155219e4b805572064c2d557f606825bf092936 SHA-256: fe04fd2115b6f8e24dcc66faa0e5c77895226bac81b9c6fc502570884297764e
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://gettraff.ru/123?keyword=android+training+by+google In PDF document text
    • https://naxizugopigonav.weebly.com/uploads/1/3/1/4/131408516/ruronuxigefaza_galewuxobomu_magikapisi.pdfIn PDF document text
    • https://rolosakuzorega.weebly.com/uploads/1/3/1/3/131379035/8909761.pdfIn PDF document text
    • https://tenagudewujuga.weebly.com/uploads/1/3/1/1/131164273/tefavusixafoba.pdfIn PDF document text
    • https://mapipuluzobeb.weebly.com/uploads/1/3/1/3/131398440/lulazuna.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/devuxupujikeninaferi.pdfIn PDF document text
    • https://netulomite.weebly.com/uploads/1/3/2/8/132814473/nofuxebunem.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://uploads.strikinglycdn.com/files/bc00f007-6596-44c6-a1db-e8424a0ee98d/temegubepusijuwuderiter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee2b4a0d-57a0-4220-a5ba-c0c5d9743511/87446957400.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa60034a-e198-4942-a90d-5b5d75d12e48/fenexoboxinojez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d64e537b-8b81-4fa4-a346-9d8ef3c31da2/wajevuxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acf82009-9e64-4e3e-9b40-1c85b175cfe9/25427423577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39876cbe-c847-44df-989d-ec079175d076/34848584059.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cf0f059-f313-446e-bd94-f707849b276e/goxumotifilavimidugelimo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0fc4259-6dec-4c9e-8a7d-c332e789772b/bakovizedaluxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4119/6712/files/dakifetonipowaforisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5538/0630/files/filarafugij.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_off00007136.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7136 4832 bytes
SHA-256: f8c15e516d21528bafa546295c3df057478506c9d4e707864a8a6714fa61689a
font_01_sfnt_off000081ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81AB 10088 bytes
SHA-256: 399966ca1813c7cca5daee2685b03f9854d65c0486504f4f2699687a9bd4248a
font_02_sfnt_off0000a41e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA41E 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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