Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f39bbf2da5fb514…

MALICIOUS

PDF

40.7 KB Created: 2020-03-11 05:05:56 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4425a3f02f7bb26a8405a2017469c5cd SHA-1: 5ccd52f2d4fd48600609015c1f3f5c8605df4530 SHA-256: 4f39bbf2da5fb514618125493bb3d59bc9b40060d05bfc21a81164cc8fd86846
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of external links, many pointing to similarly structured URLs on different domains, indicating a link farm or redirection scheme. The document body, though heavily obfuscated, contains text related to 'Neumonia por adenovirus pediatria' and references to 'wkhtmltopdf', suggesting a deceptive lure. The primary attack pattern involves directing users to a network of external sites, likely for further exploitation or credential harvesting.

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://avabaycompany.com/uploads/1/3/0/8/130874400/130874400.html#neumonia+por+adenovirus+pediatria
    • http://www.shafterpride.com/uploads/1/3/0/5/130551141/tivezovi.pdf
    • http://lets-goto-the-zoo.com/uploads/1/3/0/6/130604924/gamelel.pdf
    • http://jkcivilwa.com/uploads/1/3/0/6/130620198/f3a5b1.pdf
    • http://partyblitzindiana.com/uploads/1/3/0/2/130272937/bokagel-lokixegiluj-ravolubuni.pdf
    • http://littlewhitefoxdesigns.com.au/uploads/1/3/0/6/130639542/c1436.pdf
    • http://thehealingvine.net/uploads/1/3/0/2/130272350/nigamarix_kodifade_majozav_konekuzakupa.pdf
    • http://jahomecarellc.net/uploads/1/3/0/6/130605289/vaxuwusajilamotisawo.pdf
    • http://counseling.rigbytrojans.org/uploads/1/3/0/6/130604027/pabojukirodif.pdf
    • http://rohitmahajan.com/uploads/1/3/0/4/130476076/fobiluvetofedilira.pdf
    • http://www.jpgirls.us/uploads/1/3/0/4/130476880/zizexi_pesuvesafa_kojezo.pdf
    • http://onlinebossllc.com/uploads/1/3/0/9/130969588/7865844.pdf
    • http://the-boujee-boutique.com/uploads/1/3/0/7/130776349/2859014.pdf
    • http://hostmaster.brockenhurstvipcars.co.uk/uploads/1/3/0/6/130604110/xutaroxulonu.pdf
    • http://www.wolfforms-boutique.com/uploads/1/3/0/7/130740573/3717432.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • https://medlineplus.gov/spanish/pneumonia.html
    • 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_off0000741c.bin
7db6f3c066edd1be87ccae8b25ce3f7e9b31c3e8e51eaad0cd725b71613abf39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x741C 8760 bytes

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