Malicious PDF — malware analysis report

Static analysis result for SHA-256 22f0f7ffc2cc9680…

MALICIOUS

PDF

88.4 KB Created: 2020-06-05 03:02:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4df07380cf9debdb6ea7721b93bcbb81 SHA-1: 02b4a0ac0dd911fa0586af785cf3db10dc169320 SHA-256: 22f0f7ffc2cc9680686d16e30a99c89707dc79240bde2abf281337397e1d4e05
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are disguised as academic resources. The primary heuristic indicates a PDF link farm designed to lure users to external sites. The document body, though heavily obfuscated, contains a URL that appears to be part of this lure. The embedded links and the overall structure suggest a phishing or malware distribution attempt.

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://mail.familyandbusinesslearning.com/uploads/1/3/0/4/130488229/130488229.html#cost+accounting+a+managerial+emphasis+15th+edition+solutions+chapter+2
    • http://kidscook4acause.org/uploads/1/3/0/4/130491008/192461.pdf
    • http://mgodfreycreative.com/uploads/1/3/0/4/130436080/4620370.pdf
    • http://heidislbc.com/uploads/1/3/1/3/131384602/zejadupotuje.pdf
    • http://salusmentalhealth.com/uploads/1/3/0/7/130776756/649445.pdf
    • http://mail.familyandbusinesslearning.com/uploads/1/3/0/4/130488229/terms.html
    • http://mail.familyandbusinesslearning.com/uploads/1/3/0/4/130488229/dmca.html
    • http://mail.familyandbusinesslearning.com/uploads/1/3/0/4/130488229/policy.html
    • https://gopapuwoko.files.wordpress.com/2020/06/19958099194.pdf
    • https://bozumar.files.wordpress.com/2020/06/20473881003.pdf
    • https://luxupode.files.wordpress.com/2020/06/fenejebuta.pdf
    • https://gukubulori.files.wordpress.com/2020/06/tubosadevupib.pdf
    • https://dajejunej.files.wordpress.com/2020/06/24654913980.pdf
    • https://xivatuzivo.files.wordpress.com/2020/06/mepukotejamanededo.pdf
    • https://jimiluwubu.files.wordpress.com/2020/06/tapemasufizawevadamebaxu.pdf
    • https://rojevaliri.files.wordpress.com/2020/06/rapet.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_off00012b49.bin
9523081ecf4dabd634ff6e85d05107754acd64f2ca44ab523f2de2e2eb54ed16
pdf-font-stream PDF embedded font (sfnt) at offset 0x12B49 12328 bytes