Malicious PDF — malware analysis report

Static analysis result for SHA-256 79260862fc60a2d7…

MALICIOUS

PDF

47.3 KB Created: 2020-10-16 15:10:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1ef24631e48a84a61fbc1b2fbd1b4d4b SHA-1: 0f6a1acdcea9ec6b8d83669501af868ef842dbcf SHA-256: 79260862fc60a2d7f47582709f2b07bea80ffd5c456b2a6eb58120ece0144eb5
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://cctraff.ru/strik?keyword=moon-+touched+sword+5e In PDF document text
    • https://zukamukenipebo.weebly.com/uploads/1/3/1/3/131380388/6253e.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/1302795.pdfIn PDF document text
    • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/7099023.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/44d87feaf8ee.pdfIn PDF document text
    • https://vekejuritikoj.weebly.com/uploads/1/3/1/8/131857631/pazebazew.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/3373854.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/zidebesirolabavo.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/e08bf043-d8b0-4971-b146-468f90f68da4/zuvuvunaterewobidigeronin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3dad093-bc48-4780-be46-7dd277c5885a/govugudapaxadegerulefi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b1fce72-b8c2-4f87-a270-3444af8c2dc6/jegexefeguzamigikagop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4f91a93-cd1e-445b-be37-7ed83c8eac5e/69130006442.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96dde05e-1f82-407a-8133-5cce5be20685/bajegadazaxakezekozuvot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9800/8472/files/golden_tabby_tiger_cub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/8422/2116/files/sweet_selfie_app_for_android_phone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2586/6662/files/fitezadaxumituxelivimura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e25bd736-8fa8-4b28-ad27-1eea188641a6/pakuzerugolajelisat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e25bc59d-c072-499e-a046-cb88d96543ce/33645355799.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90192e23-3527-4509-869b-9aa40d9e7bfc/kopexajugiguge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5dac912-3c78-4073-8f64-06e0d27d2d1f/95860727055.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21d6b394-566a-4b9a-a52d-c4f53344569d/wumukuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/617a466b-9e33-414e-abcf-b1f34c504a53/43731572982.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19bf60fd-d728-4450-b4cd-cd39d922c92d/xopexerapukotamom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a22b2900-37b4-4416-9cc4-d5bd1d55fcef/kiboduwinomimimema.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d271b907-6752-4cdd-9e36-161145e2a366/puworuxaremer.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_off00007b4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B4D 5040 bytes
SHA-256: 5f894b8245ed616ff1064a55efaeab12b17ad1a8c308ec844df3033f39ac64de
font_01_sfnt_off00008c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C93 10388 bytes
SHA-256: 339a89c5368df04cf848613ee7130aec5f045417fb5c7f23b6946e4f2519f05d