Malicious PDF — malware analysis report

Static analysis result for SHA-256 f08c2bfdc89f7362…

MALICIOUS

PDF

52.4 KB Created: 2020-07-29 17:02:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9793950604dd41c9995f6ef0139cc618 SHA-1: dc7e283a028aecdec8a1735ec52e2d5b11d2b3ca SHA-256: f08c2bfdc89f7362d70540dc60d4d3852b8d70942e3f8193f958b179352ffb0e
150 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting a link farm for SEO manipulation or to host further malicious content. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves luring users to click on these links, which likely lead to phishing sites or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=no+sugar+food+list+pdf
    • http://files.youthvoicesandiego.com/uploads/1/3/0/7/130739029/2100000.pdf
    • http://files.coupadvantageportal.com/uploads/1/3/2/7/132740463/bitipema.pdf
    • http://files.packmeinursuitcase.com/uploads/1/3/1/6/131606366/d791f3a.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/72183247402.pdf
    • https://cdn.shopify.com/s/files/1/0435/5702/8001/files/408851528.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/bijaxeravuxomifeninek.pdf
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/magetikovuboj.pdf
    • https://cdn.shopify.com/s/files/1/0434/9899/5877/files/tupatedi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9940/5977/files/74764523998.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/veladazojex.pdf
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/97217653060.pdf
    • https://cdn.shopify.com/s/files/1/0433/7975/3109/files/12360026093.pdf
    • https://cdn.shopify.com/s/files/1/0434/2733/2252/files/bunavaxutugafi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6231/2616/files/62570960842.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_off0000910d.bin
d5007505454eb23e6d1cf30003c3de97aa83b67b9535e6597b4350bffb1c4005		 pdf-font-stream PDF embedded font (sfnt) at offset 0x910D 4836 bytes
font_01_sfnt_off0000a191.bin
8e0ae0998a3d402aea2c5aba6a413c1a27f763ec18d37e1c53eb0dced74f1a69		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA191 10260 bytes

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