Malicious PDF — malware analysis report

Static analysis result for SHA-256 d38043fc18795c9c…

MALICIOUS

PDF

37.1 KB Created: 2020-04-09 08:59:15 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5f838f51e20076fe8092a60e25a26f38 SHA-1: 380fe4d42521fb009659a1440899846cd156ff56 SHA-256: d38043fc18795c9c9c2bdef2091dc337cdf8493f3a41c4431b64638cac15e288
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files with numeric slugs, indicating a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a movie title. The presence of numerous external links suggests the document's primary purpose is to redirect users to potentially malicious or spam content hosted on these external domains.

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://kbknitsforyou.com/uploads/1/3/0/4/130436141/130436141.html#ast%C3%A9rix+et+ob%C3%A9lix+cl%C3%A9opatre+film+complet
    • http://hotinktoner.com/uploads/1/3/0/4/130476340/luwuropa-gajaneno.pdf
    • http://normantest.com/uploads/1/3/0/2/130271219/zisokatapezite.pdf
    • http://lilubeauty.com/uploads/1/3/0/6/130604310/topuzamefanuk.pdf
    • http://propertymaintenancellc.net/uploads/1/3/0/3/130313702/bifabimev-fubined-zebusiboboji.pdf
    • http://deposema.net/uploads/1/3/1/3/131381553/kimebiv.pdf
    • http://cbdshopinabox.com/uploads/1/3/0/6/130603832/zawud.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_off00006247.bin
a45661512e386cfafc64444d2589870bdb34f995c55f0e5ece0fe7a70c7e1173		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6247 10244 bytes

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