Malicious PDF — malware analysis report

Static analysis result for SHA-256 32fbcb36dfa363c6…

MALICIOUS

PDF

43.2 KB Created: 2020-10-05 06:54:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: c353173e2a6602cf4fd3fbef334229a4 SHA-1: 62d931610e554100e0b001a236a637158315924a SHA-256: 32fbcb36dfa363c64d751702c3f4f7212a31b1ac61246529802a54114d89f5d4
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/pify?keyword=sorcerer+spell+casting In PDF document text
    • http://laranijim.lizbowdenbeads.com/uploads/1/3/1/4/131452860/3649e8b2dd9.pdfIn PDF document text
    • http://lowasako.wanderlustneverdies.com/uploads/1/3/0/7/130776007/lupolutivobome-raxezugoma-nelilumawekagu-zenufomaxazibom.pdfIn PDF document text
    • http://files.designforcecorp.com/uploads/1/3/1/3/131380601/narunewijuz_sodajil.pdfIn PDF document text
    • http://xagepov.cleocork.com/uploads/1/3/0/7/130776760/c4a3324dfc.pdfIn PDF document text
    • http://files.iambriontv.com/uploads/1/3/0/7/130740184/1848838.pdfIn PDF document text
    • http://sumos.studiomindbox.com/uploads/1/3/0/9/130969352/gaworatebusuwax.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/b1a2eb5f-9328-40c4-98a1-4099bf350029/bizopovawinivetegakaniw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fd9ded2-c84e-4f95-b6aa-c37cf5eb5879/fosigaxezuxex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b069faf-3544-4031-98be-c0f425e73241/63206120491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/boxing_gym_hurricane_wv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5460/7777/files/blush_wedding_dress.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5791/7335/files/82396346949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/7242/5636/files/capital_de_italia_roma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0903/1840/files/snap_on_xt7100.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_off00006a3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A3B 5204 bytes
SHA-256: 85c8128d1ea5a526c0b3a22a7317830d43ca615ece65d3ca5418920c7353e298
font_01_sfnt_off00007bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFC 10588 bytes
SHA-256: 431b42c0a9d962757a47f1032ce5491a45cdcbc760b3b069dd32241fbe221244