Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bf100e34f62d8bc…

MALICIOUS

PDF

33.9 KB Created: 2020-06-03 12:55:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83cb523dca56877b22dd59ef6672434e SHA-1: fe1e19d85c7ed75fb967c6a5a0e39cadc11632a4 SHA-256: 7bf100e34f62d8bce4e22838d19ad0509f95f4b8f74ea753197a39fa10576bed
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm. The primary URL, http://moiessentials.com/uploads/1/3/1/3/131384254/131384254.html#popeye%2527s+voyage%253A+the+quest+for+pappy, is also present in the document body. This suggests a tactic to drive traffic to potentially malicious or SEO-abused content.

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://moiessentials.com/uploads/1/3/1/3/131384254/131384254.html#popeye%2527s+voyage%253A+the+quest+for+pappy
    • http://jjjandkconstructionllc.net/uploads/1/3/1/6/131636965/d3b9131.pdf
    • http://debndaveswedding.com/uploads/1/3/0/3/130379049/voxikunonakobo.pdf
    • http://flairparlour.com/uploads/1/3/1/8/131871666/mibigepi.pdf
    • http://ohsnappicture.net/uploads/1/3/1/3/131398241/pugewebedagab-riwek.pdf
    • http://ssandh.org/uploads/1/3/1/3/131383648/57b5f5e6b.pdf
    • http://igexports.net/uploads/1/3/0/2/130289554/7c27c4b.pdf
    • http://theoptimumlife.net/uploads/1/3/2/3/132303035/6559a5ce98c28.pdf
    • http://fadeflix.com/uploads/1/3/1/4/131453733/52110f7d9.pdf
    • http://moiessentials.com/uploads/1/3/1/3/131384254/terms.html
    • http://moiessentials.com/uploads/1/3/1/3/131384254/dmca.html
    • http://moiessentials.com/uploads/1/3/1/3/131384254/policy.html
    • https://tojugodusino.files.wordpress.com/2020/05/18192120137.pdf
    • https://riduvetixaxu.files.wordpress.com/2020/05/jedulukirutajurakefokazin.pdf
    • https://raketulosoke.files.wordpress.com/2020/06/dubuga.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_off000058a3.bin
7668c160ec125bac0d78f0398d6b6e69a413e70f61eaad4a185bb7eb2401083d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58A3 10488 bytes

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