PDF malware analysis — malicious · 9412c9efbb04ef96

MALICIOUS

PDF

54.0 KB Created: 2020-08-31 07:38:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a1788ffe03ad95f3aecf1a48666ae423 SHA-1: db810096c7a661b62a8b4d7c04ff947b5c86034c SHA-256: 9412c9efbb04ef964bbd514e312d9bbce0936a9b7320410a77ff0b478682c858

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/wix?keyword=ninja+professional+blender+900+watts+review`. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a link farm or redirection strategy. The ML classifier also strongly flagged this PDF as malicious.

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/wix?keyword=ninja+professional+blender+900+watts+review
- https://cdn.shopify.com/s/files/1/0435/2334/2495/files/salakelu.pdf
- https://cdn.shopify.com/s/files/1/0430/7927/0549/files/watch_dragon_ball_z_online.pdf
- https://cdn.shopify.com/s/files/1/0429/8362/0757/files/60454385837.pdf
- https://cdn.shopify.com/s/files/1/0431/2494/9153/files/transformar_angulos_centesimales_a_sexagesimales.pdf
- https://cdn.shopify.com/s/files/1/0432/8436/5468/files/63680987173.pdf
- https://cdn.shopify.com/s/files/1/0438/3742/3776/files/lanitopadajubawuboj.pdf
- https://static.usrfiles.com/ugd/b8c837_99fad0fd65e749edbd69c1ff0b3a1c86.pdf
- https://static.usrfiles.com/ugd/b8c837_48dfbe299e9a4f2b8cf9536bfa38540c.pdf
- https://static.usrfiles.com/ugd/eb6612_31db11ce240d451cac2fca8506840b61.pdf
- https://static.usrfiles.com/ugd/e42ee3_1820004d09654c0c9762bb5bb279ff3f.pdf
- https://static.usrfiles.com/ugd/21e6f2_c9f88bb9ca0140e99e4e66cbb3277dfa.pdf
- https://static.usrfiles.com/ugd/b8c837_c9f6869b972445329dbd2fbf0133938f.pdf
- https://static.usrfiles.com/ugd/f459ea_cf2eba945c2447828ee5e530e0ec9959.pdf
- https://static.usrfiles.com/ugd/cac9e4_910b465b8e634411ac5648f5361365ae.pdf
- https://static.usrfiles.com/ugd/b8c837_c8ee3abb576b4557852bebcd4eb23a4c.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_off00007eb9.bin` `58773626529d77f5a44c9f8f7a148b79080c767047a75b0ddf8e016b9593edc8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EB9	5668 bytes
`font_01_sfnt_off00009224.bin` `55662ced5dffc9597e92012139ba0c5676c2ac8c315e3a51a78785e34bbb8af7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9224	10352 bytes
`font_02_sfnt_off0000b5c7.bin` `c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB5C7	16092 bytes

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