PDF malware analysis — malicious · 4bd871d14ea0c4d5

MALICIOUS

PDF

51.8 KB Created: 2020-08-31 03:15:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 47f8f3e470f37e9170dcd173857d531b SHA-1: 9f256c5902522dba9ebcb2e79b90422079b86713 SHA-256: 4bd871d14ea0c4d5bd2ba8a1ed3dae0bd8f80b4462f19b208ece1dc7b33cef7b

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the URL 'https://ttraff.com/wix?keyword=foxwell+nt644+pr%25C3%25B3' is associated with malicious redirector infrastructure. The presence of a link farm further suggests an attempt to distribute malicious content or engage in SEO poisoning. No scripts were extracted, and the document body is largely unreadable binary data, making the primary attack vector the embedded malicious link.

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=foxwell+nt644+pr%25C3%25B3
- https://static.usrfiles.com/ugd/b98abb_ae5e418d97de440e9650d62c481e8fa4.pdf
- https://static.usrfiles.com/ugd/9cc572_f175472295ed48d1b6601de3f6a65dbf.pdf
- https://static.usrfiles.com/ugd/e23fbb_0ad32bf89ad44b90a72bd403dfb4dc39.pdf
- https://static.usrfiles.com/ugd/a467d2_b72844dc7f6b43d1bb59eccbef8636d3.pdf
- https://static.usrfiles.com/ugd/097bd5_50b64f82a50a47de96f8cd703a35173d.pdf
- https://static.usrfiles.com/ugd/74c34a_5e1a5fe19fd541aabbdc553ead7254a1.pdf
- https://static.usrfiles.com/ugd/726ec9_6587e34971d44e4596ac44e04711acc4.pdf
- https://static.usrfiles.com/ugd/b8c837_5c3f0db402aa4661add6d593c1d3be1b.pdf
- https://cdn.shopify.com/s/files/1/0438/6127/8870/files/48056409270.pdf
- https://cdn.shopify.com/s/files/1/0435/9228/6363/files/wezejizuwamufos.pdf
- https://cdn.shopify.com/s/files/1/0463/5200/7325/files/lejilaze.pdf
- https://cdn.shopify.com/s/files/1/0439/1976/9755/files/strago_lore_guide.pdf
- https://cdn.shopify.com/s/files/1/0436/5815/0046/files/devextreme_datagrid_popup_template.pdf
- https://cdn.shopify.com/s/files/1/0440/1466/5878/files/saboteur_2_card_game_rules.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_off0000703a.bin` `d1799877c11568ceaec3a67e8c256413f8596ff96b74a3bfe2ed461171a53251`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x703A	4656 bytes
`font_01_sfnt_off00007ff7.bin` `6f97c0b91644f7678ac55d1e567319382a2bde9530eb485aa858d21a02e31e89`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FF7	16748 bytes
`font_02_sfnt_off0000b27d.bin` `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB27D	4324 bytes

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