Malicious PDF — malware analysis report

Static analysis result for SHA-256 040deb4443635bd3…

MALICIOUS

PDF

44.0 KB Created: 2020-11-05 05:03:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-10
MD5: fe05aad451be2d50a19b0c0dcd20aebd SHA-1: 49e9c4516eee08079deed9c6e667678ec772ae31 SHA-256: 040deb4443635bd3a5796ea88297b0c23a3be1062b86ba01e8264fdfb064153f
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/aws?keyword=apple+watch+instruction+manual+video In PDF document text
    • https://rulakufip.weebly.com/uploads/1/3/4/4/134489053/c6ccf58f06f.pdfIn PDF document text
    • https://visenapanelowoj.weebly.com/uploads/1/3/4/5/134581819/venezata_buvivaviguxe_lanokujiresabev.pdfIn PDF document text
    • https://ginamelemu.weebly.com/uploads/1/3/4/6/134624442/sugedani_dafoma_zopoxenoru_denuriruw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369318/normal_5f8bda764b37d.pdfIn PDF document text
    • https://vofixerexelisat.weebly.com/uploads/1/3/4/3/134311693/jazubilur.pdfIn PDF document text
    • https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/papimi-nefewekapojerof-vorur.pdfIn PDF document text
    • https://lizapomed.weebly.com/uploads/1/3/4/5/134511268/6024078.pdfIn PDF document text
    • https://faxitovi.weebly.com/uploads/1/3/4/3/134379512/guzifiseti.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000607d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000607d.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00009511.bin)
    • https://uploads.strikinglycdn.com/files/34576619-7d49-40e1-bcc9-65be431b4743/3981301046.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/mozad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56e45f2e-f632-4bf2-9a53-a2c9f07c6956/zeraketif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99d5e9f8-07fe-4515-926c-c1c7f8f67298/kitatinapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/4154/4121/files/mickey_mouse_full_body_cake_pan_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/gafedakerofariseka.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 extracted file (font_00_sfnt_off0000607d.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000607d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607D 5336 bytes
SHA-256: 3143efc7d87a7a6ea346b5d691d0cdaf13be9987e8dbf015974a5d2212a61b13
font_01_sfnt_off0000727c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727C 10084 bytes
SHA-256: c74276deffb29d17b398f08f0163225539143ef146969d8f9a8d2e76f045adbe
font_02_sfnt_off00009511.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9511 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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