Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbb06f1dbeb0b50d…

MALICIOUS

PDF

46.4 KB Created: 2020-04-10 09:55:08 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2021-03-31
MD5: 567884ac2eb12db1bfdab18a1b83a840 SHA-1: b93d4e74b9e5ebd4d82d92ca42bc1e9cc6672d80 SHA-256: dbb06f1dbeb0b50d770b6d88c99223fa7f5aa64e4b77d469fafa706f5e4f1bc2
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://llyon.us/uploads/1/3/0/6/130605388/130605388.html#b%C3%ADblia+de+jerusal%C3%A9m+em+portugu%C3%AAs+download+pdf PDF link annotation
    • http://niagaramedia.us/uploads/1/3/0/6/130639800/vubifosofivav-dunojuse-zoraposurapodox.pdfIn PDF document text
    • http://solidoldies1350.com/uploads/1/3/0/4/130477533/84a46c8.pdfIn PDF document text
    • http://highbrowjackson.net/uploads/1/3/0/2/130291471/7a22266.pdfIn PDF document text
    • http://visualimpactlandscaping.com/uploads/1/3/0/7/130775376/32cb9bfe.pdfIn PDF document text
    • http://telethonforsavinglives.com/uploads/1/3/0/5/130588191/fd29ba7.pdfIn PDF document text
    • http://mccaweast.com/uploads/1/3/0/2/130289563/legekuwuwoj.pdfIn PDF document text
    • http://clashmir.com/uploads/1/3/1/0/131070656/veparevobax.pdfIn PDF document text
    • http://letssimplify.us/uploads/1/3/1/3/131383678/wunusebu.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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000848d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x848D 11844 bytes
SHA-256: 9450a0c8d0343f0c6fca34b76272102fafc26363db5d00e267b6be0b2a1b5a83

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