Malicious PDF — malware analysis report

Static analysis result for SHA-256 2293ad32acec355f…

MALICIOUS

PDF

27.1 KB Created: 2020-06-14 20:37:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cb09885b3974bcb249993341bd2da7f SHA-1: 42d831617691ea5ff05476745d609121437eda43 SHA-256: 2293ad32acec355fdb91c6e919ab21b0bd341f01b30cbc8db1bfc56eb933b722
82 Risk Score

Malware Insights

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

The PDF is identified as an image-only lure, typical of phishing campaigns. It contains numerous external links, with a primary focus on 'teshuvah.international' and 'wilsonwebworksnc.com'. The document body, though heavily obfuscated, contains these URLs, suggesting they are the intended destinations for the user. The presence of a link farm heuristic further supports the idea that these URLs are part of a broader distribution or redirection scheme.

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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 27 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://teshuvah.international/uploads/1/3/0/3/130379341/130379341.html#ti+nspire+calculator+manual
    • http://wilsonwebworksnc.com/uploads/1/3/0/2/130271171/vubimasiveg_bonuxo_tisuto.pdf
    • http://cristiancimei.com/uploads/1/3/0/7/130739021/8773f12068.pdf
    • http://corporationpablo.org/uploads/1/3/0/2/130289554/xedusirixosok-zusazigif-kuvarijire.pdf
    • https://zawonaj.files.wordpress.com/2020/06/gatoda.pdf
    • https://leforav.files.wordpress.com/2020/06/mixovored.pdf
    • https://dokowigi.files.wordpress.com/2020/06/pajajutolusos.pdf
    • https://mewurelaj.files.wordpress.com/2020/06/57583751599.pdf
    • https://lewupopeg.files.wordpress.com/2020/06/83480155914.pdf
    • https://vigesewidep.files.wordpress.com/2020/06/74638826196.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_off000046a6.bin
5cda0b1abab4013ef8e9463bc8c77be343a273ac9c0bf5c09f01eb04f95ddd8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46A6 7904 bytes

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