PDF malware analysis — malicious · b53b0e2888610c95

MALICIOUS

PDF

46.7 KB Created: 2020-08-29 13:26:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 584ae766212d382ff9991f718d8549b7 SHA-1: a065e55e93a1b1b29b9c728267d42f8b29a3210b SHA-256: b53b0e2888610c959fd01787723022adf5f18f70b5e763ae1935e86bcc1407ac

120 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 heuristic identifying it as a PDF SEO link farm. Another heuristic flags a link to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.com/wix?keyword=madhuraa+bhattacharya+achyutam+keshavam+download, which likely serves as a lure or initial redirection point. The document body contains garbled text and metadata indicating it was generated by wkhtmltopdf, suggesting it's not a legitimate document.

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.com/wix?keyword=madhuraa+bhattacharya+achyutam+keshavam+download
- https://static.usrfiles.com/ugd/b8c837_1cad664b32c740599c559bfef1fdb2b9.pdf
- https://static.usrfiles.com/ugd/b8c837_b4cc2e1d8739428d80427be9b2dc7698.pdf
- https://static.usrfiles.com/ugd/b52961_d4a3fd03083b4ae295bf9419938a8f86.pdf
- https://static.usrfiles.com/ugd/b8c837_11284874b64c4b7fb20ec187282ca080.pdf
- https://static.usrfiles.com/ugd/b8c837_f034b80f0d474d84949620da31371891.pdf
- https://static.usrfiles.com/ugd/b8c837_2b501853060a42d7b78d1b69e0aee4bf.pdf
- https://static.usrfiles.com/ugd/b8c837_e8ade5e9a72a46d2a013f43be6f77b37.pdf
- https://static.usrfiles.com/ugd/89064d_2ac43ac95a7f458788c9a987041dd87e.pdf
- https://static.usrfiles.com/ugd/b8c837_8a4153a7e19d47fa837278ad535180e7.pdf
- https://static.usrfiles.com/ugd/b8c837_1b398b0a866e4949ac8a67de1f87e682.pdf
- https://cdn.shopify.com/s/files/1/0432/2197/5197/files/wuvigezirozegetifo.pdf
- https://cdn.shopify.com/s/files/1/0429/2732/5343/files/25886669690.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005821.bin` `ad3e795f954a4f6a970a0d003f72de47aeddd9d9afdfac5a310c76f21063c07c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5821	5640 bytes
`font_01_sfnt_off00006b42.bin` `0361c9ca2ca6722fdd30e585011f37fce98485a4ef0cbee83152d30143bb3d13`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B42	13564 bytes
`font_02_sfnt_off00009618.bin` `8933ee990bb2e109e2a2e909ee1c5a0c9029858a1b314bd490be953caa2111f0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9618	6764 bytes

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