Malicious PDF — malware analysis report

Static analysis result for SHA-256 b84c7498c036512a…

MALICIOUS

PDF

35.7 KB Created: 2020-03-09 13:16:41 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4a8b00db5b03b3f00659a089eff79a27 SHA-1: 1b4a916a9f44fc6c7bb5f5bbfaa1a88ecd4088c8 SHA-256: b84c7498c036512aa776c5d6a32b9e3de0c539d4f7d0732a7aa202ff6eed230c
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 spam or to redirect users to malicious sites. The document body, though partially corrupted, suggests a 'school calendar' lure. The primary heuristic identified a link farm with numerous URLs hosted on various domains, all pointing to PDF files. This indicates a coordinated effort to distribute links, likely for traffic generation or phishing.

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://www.truebestself.com/uploads/1/3/0/8/130874591/130874591.html#school+calendar+2020+pdf+qld
    • http://missionbluecamp.org/uploads/1/3/0/5/130542770/sasaletemej.pdf
    • http://misstinksbowtique.com/uploads/1/3/0/3/130313274/gamikakug_musalesuwagefe_bevepug_fekewiwuwep.pdf
    • http://texasstocklawyers.com/uploads/1/3/0/5/130540788/cab3c74466f15.pdf
    • http://snappees.com/uploads/1/3/0/2/130291441/96b18931dade0.pdf
    • http://northernlightspace.com/uploads/1/3/0/5/130547527/sufanevefi.pdf
    • http://mx.eurokreations.com/uploads/1/3/0/6/130604254/14027e421195.pdf
    • http://kidscreativestudio.com/uploads/1/3/0/4/130483507/889945.pdf
    • http://connexionadr.com/uploads/1/3/0/4/130483583/52c339.pdf
    • http://entertempleavalon.com/uploads/1/3/0/4/130488270/3233628.pdf
    • http://five9demos.com/uploads/1/3/0/4/130493816/9449478.pdf
    • http://89cougars30th.com/uploads/1/3/0/4/130436007/22bfe.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_off00006342.bin
2cdd1d5dd3febdc5f08f29062ade8f2e2811039d8cb991109debc8fa6feea3bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6342 7940 bytes

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