Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6ff6e1c44a9f1bd…

MALICIOUS

PDF

39.6 KB Created: 2020-06-21 08:41:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80a407711659bb7b11fc95ea9d9a30e4 SHA-1: 33e9357f8c585099fa08bb1b45945b9a3c1556f6 SHA-256: e6ff6e1c44a9f1bdc398947abe7df87e5e2eaa2f543b07978945ec69a5bd8201
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, many of which are hosted on domains that appear to be part of a link farm. The document body text and embedded links suggest a lure related to purchasing textbooks, but the primary function appears to be directing users to a network of potentially malicious or spam-related PDF files. No scripts were extracted, limiting the analysis of direct payload delivery.

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://ojrservices.com/uploads/1/3/0/5/130551399/130551399.html#cheapest+way+to+buy+textbooks
    • http://transformengineering.com/uploads/1/3/0/7/130738497/b73731c95c.pdf
    • http://joeveltrimusic.com/uploads/1/3/1/3/131380564/ff83eb.pdf
    • http://americanmatco.com/uploads/1/3/0/5/130589322/wuwamuxep.pdf
    • http://in-study.org/uploads/1/3/1/6/131606066/a252882d070c7.pdf
    • http://wolfecityhomecoming.com/uploads/1/3/0/3/130379049/vigira.pdf
    • http://mta-sts.mail.thetexangroup.com/uploads/1/3/0/5/130542718/mifetovidojojo.pdf
    • http://lip-service-beauty.com/uploads/1/3/1/4/131453145/7303ebbdad3f.pdf
    • http://happyparentslangley.com/uploads/1/3/0/5/130551064/02e1ca7b8f.pdf
    • http://cpanel.cabincreekfarmstudio.com/uploads/1/3/1/0/131070566/gadorusupomob_vebate_janejati.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b11.bin
46c6fdd41dc584b1c9c92c43d2b3df7a4ed23f3038d7c9ca748ae625f14b11b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B11 4996 bytes
font_01_sfnt_off00006c36.bin
082361e2d6ef6eccde2657d759b13deab7ebb31bf25ba5d62286f1af308ea1b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C36 10864 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.