Malicious PDF — malware analysis report

Static analysis result for SHA-256 450cec99cb63ed99…

MALICIOUS

PDF

50.1 KB Created: 2020-10-05 00:54:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 11d6f67d8ab3ff493eb5eedea0a2fe43 SHA-1: 2a8054cf1c24308bb5ddc5faa37b4947f3ecffb4 SHA-256: 450cec99cb63ed996b6d4ea75686e8a474dcd7453fc517ad3f8b31bf681bdff0
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://ggtraff.ru/strik?keyword=45+45+90+triangle+worksheet In PDF document text
    • https://site-1039675.mozfiles.com/files/1039675/xifakurefiti.pdfIn PDF document text
    • https://site-1036659.mozfiles.com/files/1036659/95488432550.pdfIn PDF document text
    • https://site-1042938.mozfiles.com/files/1042938/52018131536.pdfIn PDF document text
    • https://site-1036805.mozfiles.com/files/1036805/66209341251.pdfIn PDF document text
    • https://site-1039517.mozfiles.com/files/1039517/38360467738.pdfIn PDF document text
    • http://kumoge.seclairer.com/uploads/1/3/1/1/131163914/5882381.pdfIn PDF document text
    • http://rulaguxa.evolution-erie.com/uploads/1/3/0/7/130739362/c0292ed.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3709/8133/files/lasor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5289/1297/files/liberian_girl_lyrics_translation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3124/4195/files/zazubazetow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5353/1807/files/passive_voice_worksheet_for_class_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/5231/0943/files/wajef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/8561/9094/files/73061939329.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE3 5516 bytes
SHA-256: e59f37c1a4f384dce4293664bf296d7318c6347ef22519cb015f2ea97c33bafc
font_01_sfnt_off000082ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82BA 10460 bytes
SHA-256: d68e7f49720f377de90df01829fe5592aa34301558ec831e57c56b56512bbeea
font_02_sfnt_off0000a6ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6AE 16072 bytes
SHA-256: 4ce97752c8d1ed0b0302a1507788019c6b738cc3ee96ca273f61f92c287db7cd

Open this report in the interactive analyzer, or submit your own file for analysis.