Malicious PDF — malware analysis report

Static analysis result for SHA-256 89f6808863d40019…

MALICIOUS

PDF

45.0 KB Created: 2020-04-27 00:02:17 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a648cda7cbbd944acb03dba93c1d32e1 SHA-1: ea3ae5b054cd634165a7fbf9a88abc37ea3a2f1f SHA-256: 89f6808863d40019f6ed326a79060e3f09b5b227a7e83c42e0fe80e754d4e87b
70 Risk Score

Malware Insights

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

The PDF file contains numerous external links to various domains, a technique often used for SEO poisoning or to host malicious content. One of the embedded links, 'http://sauerlandhypotheek.nl/uploads/1/3/0/2/130274282/130274282.html#budget+planning+template+pdf', suggests a lure for users interested in financial templates. The heuristic 'PDF_SEO_LINK_FARM' indicates a high concentration of external links, pointing towards a malicious intent to redirect users to potentially harmful content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://sauerlandhypotheek.nl/uploads/1/3/0/2/130274282/130274282.html#budget+planning+template+pdf
    • http://cloud9tv.cc/uploads/1/3/1/4/131407453/d7af1243cc.pdf
    • http://thebirddogapp.com/uploads/1/3/0/6/130620370/9274e1.pdf
    • http://brightstaradopt.com/uploads/1/3/0/3/130323453/5299360.pdf
    • http://jigsawcanvas.com/uploads/1/3/0/7/130775753/gosopiwatad.pdf
    • http://kgcaterings.com/uploads/1/3/0/2/130270899/newego.pdf
    • http://luxoilcollection.com/uploads/1/3/0/9/130969907/bixumadesoma_xunuk_mipadezajogu_zelozolomu.pdf
    • http://jinsbarbershop.com/uploads/1/3/0/4/130489522/luvugep_difed.pdf
    • http://jose-yard-2019.com/uploads/1/3/1/4/131408528/4221154.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_off0000877f.bin
c72c65a11518fbe5bf951666a6bed6e7299b82fe405f82c30e125c4fb37b629e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x877F 8584 bytes

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