Malicious PDF — malware analysis report

Static analysis result for SHA-256 2394ba0371871196…

MALICIOUS

PDF

34.6 KB Created: 2020-04-20 15:14:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 89b94f10178da318b4cb519831b466ab SHA-1: a73e4a6d1950cfc28c8d23d3626d1d0f8c7e57c0 SHA-256: 2394ba0371871196090f715d0531aa97f87dde5917abc9eeaddebdb052653a14
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a link farm of external URLs, disguised as a computer science question paper. This technique is commonly used to drive traffic to malicious websites or to host further stages of an attack. The embedded URLs suggest a phishing or content-luring attack pattern. No scripts were extracted, limiting the analysis of direct payload execution.

Heuristics 3

  • 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
  • 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://thismaycomeinhandy.com/uploads/1/3/0/6/130603810/130603810.html#bihar+stet+computer+science+question+paper+pdf
    • http://wnwn2019.org/uploads/1/3/0/5/130551237/7133323.pdf
    • http://heartbeatforeverything.com/uploads/1/3/0/6/130622068/zaweb.pdf
    • http://txhcis.com/uploads/1/3/0/2/130288589/f76708ffdb954.pdf
    • http://constructiongarantie.com/uploads/1/3/0/4/130488736/xitobu.pdf
    • http://twelve21.ca/uploads/1/3/1/1/131164291/33e39cadf74.pdf
    • http://lc-photobooth.com/uploads/1/3/0/5/130590282/622326.pdf
    • http://anabolicsteroidsunleashed.com/uploads/1/3/0/7/130775551/ed6c27.pdf
    • http://minutegrillers.com/uploads/1/3/0/2/130289288/guwobariweserot.pdf
    • http://salt-boatworks.com/uploads/1/3/1/4/131453807/5281797.pdf
    • http://constructiongarantie.com/uploads/1/3/0/4/130488736/xitobu.p
    • 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_off00006012.bin
85f4174e05f1dfc82b643283f6c36733e11cb39a99255e242fefbc63740e36a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6012 7812 bytes