Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6882b4e6e5a410c…

MALICIOUS

PDF

35.8 KB Created: 2020-08-02 11:37:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 761368537f483ead0ddfe4765e5ff042 SHA-1: f6a2cbb7f266c7522e6380cb619562f57f1cdba6 SHA-256: d6882b4e6e5a410c107a4be67c9dc9de3fe3c506a3969fadb5d6315d3456ed4d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a lure related to 'R Kelly cookies mp3' and a link that redirects to known malicious infrastructure. The document also employs a social engineering tactic to trick users into installing a browser extension or update, a common method for malware delivery. The presence of a link farm further suggests malicious intent, likely to distribute malware or phish for credentials.

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=r+kelly+cookies+mp3
    • http://files.nativlevy.com/uploads/1/3/2/3/132302780/fed752fdaa078.pdf
    • http://files.babylonboatworks.com/uploads/1/3/2/6/132681767/kajojenowometibidafi.pdf
    • http://files.southaustinkarate.com/uploads/1/3/0/7/130740553/tobiguti_fanipexinubut_xoxiwumuzetem_taboku.pdf
    • https://cdn.shopify.com/s/files/1/0431/9451/5614/files/72879930772.pdf
    • https://cdn.shopify.com/s/files/1/0438/5888/6806/files/10412040185.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7719/files/59118996492.pdf
    • https://cdn.shopify.com/s/files/1/0437/1624/7703/files/vosukutixakeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0234/files/14174913318.pdf
    • https://cdn.shopify.com/s/files/1/0432/2168/0283/files/wajasisudixi.pdf
    • https://cdn.shopify.com/s/files/1/0429/5802/8959/files/66378743052.pdf
    • https://cdn.shopify.com/s/files/1/0437/8705/9362/files/39450222243.pdf
    • https://cdn.shopify.com/s/files/1/0437/7876/9045/files/tebupurobebilewani.pdf
    • https://cdn.shopify.com/s/files/1/0431/3235/4711/files/48153232609.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89832202682.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_off00004e19.bin
f65f73109437e2736e7c12557c72f8110f22fc3203effad2f6d7f6819ea49107		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E19 5112 bytes
font_01_sfnt_off00005f86.bin
7a60c04455877d5c79ad6f315d97ab2fc050d0c83a3b9486874144840134fc2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F86 10424 bytes

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