Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dabf7df3b9fc55a…

MALICIOUS

PDF

31.2 KB Created: 2020-06-11 19:38:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6eea6f69d66504974d9c8b7d7ec1c487 SHA-1: 60f13a9bd887df251896db6abd3d2de8f405f145 SHA-256: 4dabf7df3b9fc55a12563b00c481f49afe624cee2cb88f6617c99af904d7b7bf
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 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 partially corrupted, contains text related to 'Science worksheet first grade', suggesting a lure to attract educational users. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, with 'gingerontheglo.com' being a dominant host, and 'PDF_URI' points to 'sandragalindoonline.com'. These elements collectively suggest a phishing or redirection attack.

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://sandragalindoonline.com/uploads/1/3/1/3/131383242/131383242.html#science+worksheet+first+grade
    • http://gingerontheglo.com/uploads/1/3/0/5/130543848/2063976.pdf
    • http://mail.jsmilitaria.com/uploads/1/3/0/5/130552097/2975709.pdf
    • http://mail.meemar.com/uploads/1/3/0/7/130775800/zajojakisovu-wuwenulap-gimib-patitututa.pdf
    • http://northwashingtonvfd.com/uploads/1/3/0/5/130589353/munux-rofepu-veworafezijovin.pdf
    • http://thegrizzlybeardco.com/uploads/1/3/0/3/130323675/dd48f.pdf
    • http://mail.joanwalker.com/uploads/1/3/0/6/130639517/9073674.pdf
    • https://zetamuse.files.wordpress.com/2020/06/furut.pdf
    • https://vibuxenex.files.wordpress.com/2020/06/vumufa.pdf
    • https://lomawewaba65132079.files.wordpress.com/2020/06/kumerefexi.pdf
    • https://xajiwazep851788274.files.wordpress.com/2020/06/sazuvekam.pdf
    • https://sakadukil.files.wordpress.com/2020/06/kikowigeduxizafimik.pdf
    • https://pawojoteloje.files.wordpress.com/2020/06/16803822977.pdf
    • https://zajejudiku.files.wordpress.com/2020/06/podedegovipe.pdf
    • https://valekakixov.files.wordpress.com/2020/06/kujotipitixes.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_off000050b8.bin
cb6c3e84f71b095b77d5ae343b720e8c4df69755b2cf59eb83004ee80244f6ba
pdf-font-stream PDF embedded font (sfnt) at offset 0x50B8 9692 bytes