Malicious PDF — malware analysis report

Static analysis result for SHA-256 24dfbacd3f15c048…

MALICIOUS

PDF

60.3 KB Created: 2020-06-05 02:05:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77e02b46f6b899950b25b54c2b480186 SHA-1: 6abb413dc38df3c0e019743e372466c678f91b6a SHA-256: 24dfbacd3f15c0481fea27be7717e0a8ba78b747ffc1167702a4883a48779d25
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous external links, a technique often used for SEO link farming to manipulate search engine results. The document body text, though heavily obfuscated, includes a phrase suggesting it is a lure for "Stp mathematics 3a answers pdf". The primary heuristic identified a link farm with 27 external PDF links, predominantly hosted on sd-homes-llc.com. No scripts were extracted from this sample.

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://web3.pleasingfood.com/uploads/1/3/0/6/130605041/130605041.html#stp+mathematics+3a+answers+pdf
    • http://sd-homes-llc.com/uploads/1/3/0/2/130289587/kurevoki.pdf
    • http://lalunasoul.com/uploads/1/3/0/7/130776319/dbdcb09943.pdf
    • http://kevincourt.com/uploads/1/3/1/4/131452934/diwid.pdf
    • http://missoulawindowtinting.net/uploads/1/3/0/3/130323612/saxefatofipilinukafi.pdf
    • http://web3.pleasingfood.com/uploads/1/3/0/6/130605041/terms.html
    • http://web3.pleasingfood.com/uploads/1/3/0/6/130605041/dmca.html
    • http://web3.pleasingfood.com/uploads/1/3/0/6/130605041/policy.html
    • https://vijulow119455843.files.wordpress.com/2020/06/wonikemubagonife.pdf
    • https://beburan.files.wordpress.com/2020/06/73775908292.pdf
    • https://sunoxel.files.wordpress.com/2020/06/75176510013.pdf
    • https://jedidaridov.files.wordpress.com/2020/06/roxog.pdf
    • https://wuwuwomelar.files.wordpress.com/2020/06/76743713001.pdf
    • https://vafegavajip.files.wordpress.com/2020/06/76936668556.pdf
    • https://wutamewoj.files.wordpress.com/2020/06/pimimofagasufuze.pdf
    • https://kajiwudejov.files.wordpress.com/2020/06/warofexabepiromerikom.pdf
    • https://zojibulo.files.wordpress.com/2020/06/vugisumagumubotakiw.pdf
    • https://degopufavaka197341346.files.wordpress.com/2020/06/78153081130.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_off0000a9a6.bin
d74454bef7f7caecb5d0e8048443ee1e61a62e05458c36f4aaf014d5e9b2ab8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9A6 11208 bytes
font_01_sfnt_off0000d020.bin
f3b752e25d2e3098dc5b351a512c5ca672d2b137fcb7ddb3f81b2384be51d5c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD020 16072 bytes

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