Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6ad9eb8d155e764…

MALICIOUS

PDF

54.0 KB Created: 2020-03-30 01:44:53 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 71b5b816db027446e3fad8d785f40f0a SHA-1: 3407f7a56c3b2655360efa3bf52b6e55c3943bea SHA-256: e6ad9eb8d155e7643e06e8d5b1a71490708c24ca7bf34722b3bbc7e188386489
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though heavily obfuscated, contains references to a 'naval military personnel manual' and includes numerous URLs pointing to similarly structured PDF files on various domains. This suggests a campaign to drive traffic to these sites, likely for phishing or malware distribution.

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://vulturepeaksilverbars.com/uploads/1/3/0/8/130815228/130815228.html#naval+military+personnel+manual
    • http://ushomes888.com/uploads/1/3/0/7/130739298/3048461.pdf
    • http://cbwikia.com/uploads/1/3/0/2/130270937/kepive.pdf
    • http://dqhsolutions.com/uploads/1/3/0/5/130544385/losugejaze-xowinejemed-rugazubapofuju.pdf
    • http://diamondlandscapescolorado.com/uploads/1/3/0/8/130813509/6684142.pdf
    • http://marienvangrondelle.nl/uploads/1/3/0/7/130739074/vukupozisifa.pdf
    • http://scripttoscreenplay.com/uploads/1/3/0/4/130436513/030a7.pdf
    • http://palminc.net/uploads/1/3/1/3/131380253/3898358.pdf
    • http://bgmnephrology.com/uploads/1/3/0/4/130476294/6da0498ca05a0e6.pdf
    • http://resolutionlaw.org/uploads/1/3/0/8/130813945/moxupapenuw.pdf
    • http://smjestaj.delorita.com/uploads/1/3/0/7/130774981/9a44ea116a50.pdf
    • http://laramyelick.com/uploads/1/3/0/6/130620797/tefasakalitebod-butozebafudijud.pdf
    • http://edtech411.net/uploads/1/3/0/8/130814516/2471eb6df28b.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_off0000ad52.bin
f70773a0e7b401ad68139c945588fce0d48de619627709dc954b44f04193829a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD52 7576 bytes

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