Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9b27e541da66ba2…

MALICIOUS

PDF

35.5 KB Created: 2020-09-17 16:52:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 851c02d74c6f1a75ac4187279048639c SHA-1: 68845c15cd5fdb18f00af643c015a04a3384c8d5 SHA-256: b9b27e541da66ba20a3c191ef20091b0574d92d1c63ed62abccf9610222f6a92
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.me/wix?keyword=newberry+math+and+science+academy+rating'. The document body, though heavily obfuscated, contains text related to an academy rating and the authoring application 'wkhtmltopdf', suggesting a lure. The presence of numerous PDF links, many pointing to suspicious domains, indicates a link farm designed to distribute malicious content or facilitate phishing.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.me/wix?keyword=newberry+math+and+science+academy+rating
    • http://files.glowingmermaids.com/uploads/1/3/0/7/130774993/dowosirajopavo.pdf
    • http://zamoripu.solarpumpindia.net/uploads/1/3/0/7/130740393/f9239ad3544627.pdf
    • http://poxadi.edgewoodlrc.com/uploads/1/3/1/6/131606177/2706999.pdf
    • http://files.rehbocksolutions.com/uploads/1/3/0/8/130873855/5015757.pdf
    • https://708b78dc-b176-4287-ab80-a787f6e990ea.filesusr.com/ugd/e2c6c1_86b0505ec0074e0788f281923b8e920d.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0430/8090/8949/files/21097413099.pdf
    • https://cdn.shopify.com/s/files/1/0434/1451/9973/files/menefaberozobi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3839/1970/files/navolawuwerekafimin.pdf
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/porudinuvobojuluvapinuke.pdf
    • https://0ecd3403-9dd7-4fb9-9d18-3d1d39d52f62.filesusr.com/ugd/a72fa8_eeb466b688214ee4954afc9c11a86f56.pdf?index=true
    • https://6e617479-aa35-4bb9-b050-b53a6793b774.filesusr.com/ugd/f6a907_7efe06f8de814456b669c478d57a5df9.pdf?index=true
    • https://527431ad-bed0-48bd-9d00-2eadf31cf4a2.filesusr.com/ugd/0582e0_2f96afcf6e564c3e8a79cd47b484936e.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000422e.bin
2eaedddc08816007a1ebf284a2266c4e07280cdc73612eb5412d1de461ba5234		 pdf-font-stream PDF embedded font (sfnt) at offset 0x422E 5304 bytes
font_01_sfnt_off0000541d.bin
5230ff6fb80c8929da36f37157365e78c4632dd0ab5f57db0a802a3f4cca3f71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x541D 9148 bytes
font_02_sfnt_off00007346.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7346 4324 bytes

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