Malicious PDF — malware analysis report

Static analysis result for SHA-256 e090a273bd2b7a62…

MALICIOUS

PDF

32.7 KB Created: 2020-04-30 12:00:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 97654ea5c1b00e2b100956308c970003 SHA-1: ca41f3e36a7197e100d24a60427a24dd8d1d3a51 SHA-256: e090a273bd2b7a6218399703af78783bdfae965755f405a47d689546bbb4beb7
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF file contains a large number of external links, many of which point to other PDF files on various domains. This behavior is indicative of a link farm or SEO spam campaign, designed to drive traffic or potentially distribute further malicious content. The presence of a 'download button' lure reinforces the deceptive nature of the document. No scripts were extracted, limiting the analysis of direct payload execution.

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://myevarsity.com/uploads/1/3/1/0/131070938/131070938.html#aparichitudu+telugu+audio+songs+free
    • http://rexlawllp.com/uploads/1/3/0/7/130776074/wovedavepub.pdf
    • http://toghumble.com/uploads/1/3/0/3/130312937/panuvuvugesitusatas.pdf
    • http://artillerousa.com/uploads/1/3/1/3/131384797/ef78a44.pdf
    • http://taylorsplayground69.com/uploads/1/3/0/8/130874051/4274430.pdf
    • http://hairinmotionbarrie.com/uploads/1/3/0/4/130483650/vulepomebewemav-kavoxulubot-verebujumat-supojise.pdf
    • http://worldrugbyjournal.com/uploads/1/3/1/3/131379506/c49d6f754.pdf
    • http://brothercell.com/uploads/1/3/0/4/130435553/lirar.pdf
    • http://martinezcommercialcleaning.com/uploads/1/3/0/5/130543019/ditawuvet.pdf
    • http://harperstotallawncare.com/uploads/1/3/0/5/130588512/podom.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_off0000577c.bin
80387a5c27574fedd710213649344cdffc7a6587e8ee510321b4647ec76d87b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x577C 8028 bytes

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