PDF malware analysis — malicious · f88035475072fad1

MALICIOUS

PDF

48.8 KB Created: 2020-08-31 12:57:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9083c58742be65ea6ec1b43770e2a3dd SHA-1: 7ebbf5cb7db65d1d1127474a998af7e9ca226776 SHA-256: f88035475072fad1d064f6ea9ada084667d1f03c5c7a36f94c56e997b0ff1119

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/wix?keyword=control+systems+engineering+7th+edit'. Another critical heuristic indicates a PDF link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. The document body, though heavily obfuscated, contains references to technical documents and URLs, reinforcing the lure. No scripts were extracted from this sample.

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=control+systems+engineering+7th+edit
- https://cdn.shopify.com/s/files/1/0435/1157/8776/files/44478938708.pdf
- https://cdn.shopify.com/s/files/1/0440/0162/4214/files/tiradexukisu.pdf
- https://cdn.shopify.com/s/files/1/0432/7325/7118/files/matlab_for_engineers_4th_edition.pdf
- https://cdn.shopify.com/s/files/1/0430/5567/7591/files/36282246297.pdf
- https://cdn.shopify.com/s/files/1/0461/3675/4329/files/51913894451.pdf
- https://cdn.shopify.com/s/files/1/0437/2873/2314/files/91848617387.pdf
- https://cdn.shopify.com/s/files/1/0437/1575/6182/files/ei_reporting_online_call.pdf
- https://cdn.shopify.com/s/files/1/0453/2715/5355/files/pizonexew.pdf
- https://cdn.shopify.com/s/files/1/0437/8555/2030/files/sufujigazifavunijo.pdf
- https://cdn.shopify.com/s/files/1/0430/9227/9445/files/8169827607.pdf
- https://static.usrfiles.com/ugd/b8c837_934e2118687c44ffa2d7841d581f7731.pdf
- https://static.usrfiles.com/ugd/76de1a_d6788eecd0c342819389c54cfe7b50f3.pdf
- https://static.usrfiles.com/ugd/d5415a_795e802b8dee4696bc58a309b6753c78.pdf
- https://static.usrfiles.com/ugd/b8c837_1902b7e3d2804492a3faf56f5da7441f.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/
- https://static.usrfiles.com/ugd/b8c837_934e2118687c44ffa2d7841

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000065f3.bin` `8ac0704dc59d14534d22534ec17e5b5fa004203f3bb05075f5bf7fc10d3e325b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65F3	5020 bytes
`font_01_sfnt_off000076e5.bin` `a8eadc1d3a6cf4916f06ed18e606b384307ed873f3fb550dbd0c2d7bbe7320ce`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76E5	15340 bytes
`font_02_sfnt_off0000a5e5.bin` `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA5E5	4324 bytes

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