Malicious PDF — malware analysis report

Static analysis result for SHA-256 7894b590636402ab…

MALICIOUS

PDF

31.6 KB Created: 2020-05-15 20:39:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b6fbf0adc6699c6a21aa28d7e543a48 SHA-1: 8b5472b8bf74cf4e11682b4f2cdb50bf40b5400a SHA-256: 7894b590636402ab0e1ae0131a311039fc90e78844592399b63cda9c5f7392f7
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded external links, identified as a PDF SEO link farm. The primary URL, http://sweetonketobakery.com/uploads/1/3/1/4/131453329/131453329.html#my+little+bastard+game, is likely part of a campaign to drive traffic to numerous websites. No scripts were extracted, but the heuristic firings strongly suggest a link-farming or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://sweetonketobakery.com/uploads/1/3/1/4/131453329/131453329.html#my+little+bastard+game
    • http://amishcraftcabinetry.com/uploads/1/3/1/8/131871439/838453.pdf
    • http://mmwallandcompany.com/uploads/1/3/0/7/130739809/265bce4ffca42.pdf
    • http://o-x-i.net/uploads/1/3/0/6/130620494/a726a.pdf
    • http://thevapeladies.com/uploads/1/3/1/3/131383204/neluzaxire_debidedejarilon_dubax.pdf
    • http://simplelivingsolutions.org/uploads/1/3/0/5/130539049/5559958.pdf
    • http://gopfranklin.org/uploads/1/3/0/2/130292007/jexovevexuz.pdf
    • http://luxurystuccollc.com/uploads/1/3/0/3/130323260/dbc3bb39935967.pdf
    • http://ezeweb.biz/uploads/1/3/1/4/131437756/tixalisolotitus.pdf
    • http://alphabetearth.com/uploads/1/3/1/1/131164159/aa07444e46bb.pdf
    • http://travelwithatwist.org/uploads/1/3/0/5/130550772/2329470.pdf
    • http://mew-ville.shop/uploads/1/3/0/6/130605331/e67985e89c08019.pdf
    • http://anathemamaranatha.com/uploads/1/3/1/1/131164534/7763418.pdf
    • http://jacquelinereneking.com/uploads/1/3/1/6/131636665/sitekorotanomo_putulida_tovopekenasuso.pdf
    • http://florian49.com/uploads/1/3/1/3/131379830/nunujipexoset.pdf
    • http://i-contract.org/uploads/1/3/0/5/130552017/73c27f944c8d33.pdf
    • http://marieandreehoude.ca/uploads/1/3/0/6/130622012/wafawujugenerag.pdf
    • http://agm-handmade-designs.com/uploads/1/3/0/7/130739457/4ddcde88032425a.pdf
    • http://classichobbyinc.com/uploads/1/3/1/1/131164352/7679333.pdf
    • http://alleykatcreations.com/uploads/1/3/0/6/130621093/4875945.pdf
    • http://joyahcreations.com/uploads/1/3/0/7/130739419/mavuxijit.pdf
    • http://dessante.com/uploads/1/3/0/9/130969354/1832638.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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/
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f81.bin
b7a24c706aaeb5fedc345d23fab342f9e6487594b580ad398d230fd15d07f0b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F81 9856 bytes

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