Malicious PDF — malware analysis report

Static analysis result for SHA-256 29079c8f220b4029…

MALICIOUS

PDF

36.2 KB Created: 2020-04-07 15:07:42 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: dba7d90e22675669d5f488095074d4d3 SHA-1: f882f72a4219000bf47730dcd872c4c8b39abb14 SHA-256: 29079c8f220b4029c4cea82cdb4f581b7e2b0b6a4d2d6ae8c69598f12dd583c7
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection to malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted from this sample, but the presence of numerous embedded URLs points to a delivery mechanism that relies on user interaction to navigate to external resources.

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://sageoaksphotography.com/uploads/1/3/1/3/131380404/131380404.html#icd+10+cm+code+for+autoimmune+disorder
    • http://socratefuego.com/uploads/1/3/1/3/131384135/bonoz_loporej_levagekalibe_pesoga.pdf
    • http://lovinghandsmedicalclinic.com/uploads/1/3/0/6/130621066/35d6f57.pdf
    • http://awoltees.com/uploads/1/3/0/5/130588499/749dbd5420ba0.pdf
    • http://inter-corporation.pl/uploads/1/3/0/4/130494743/rebeb.pdf
    • http://jfdeals.com/uploads/1/3/0/2/130272512/2770269.pdf
    • http://wobizsor22.com/uploads/1/3/0/2/130289367/zabonutone.pdf
    • http://sloansinventories.com/uploads/1/3/0/5/130539179/loripudavowovodowaj.pdf
    • http://306usa1st.com/uploads/1/3/0/4/130436033/simow-kesutapipokavu.pdf
    • http://tayjamesdesigns.com/uploads/1/3/0/4/130477584/livafuzaworuwem_nezefir_xababito.pdf
    • http://datadrivensocial.com/uploads/1/3/0/6/130605255/af152b0.pdf
    • http://maddsmaxjesty.blog/uploads/1/3/0/6/130604876/xajizide_zipigizoketi_deraginef.pdf
    • http://joannsdotter.com/uploads/1/3/0/6/130603819/fuxujawuwufimanudoma.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066f1.bin
99a49b4bc11c78f92ca4e9de7c4cf1dd220a9cfefedb0fca8e722ff8ca779de1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66F1 7412 bytes

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