PDF malware analysis — malicious · ab79d3cfe4cb06c8

MALICIOUS

PDF

45.5 KB Created: 2020-08-30 02:03:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 902467bdfd7e6ab3bc5197c0633a6bd0 SHA-1: 7727cda4703b6c0c167423afb4df8296b3dec71f SHA-256: ab79d3cfe4cb06c89c8c8baada43377d19f7e0ca9fec70d027a7bb9b72c8ed74

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/wix?keyword=upgrade+film+vf', which is flagged as malicious. This suggests a phishing or redirection attempt to a malicious site.

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.ru/wix?keyword=upgrade+film+vf
- https://static.usrfiles.com/ugd/e2c250_bb2d9dbbe72f4238844c2e6620857fe2.pdf
- https://static.usrfiles.com/ugd/accd1f_3d4b5ec1a5cb4587a30be93dec6f423e.pdf
- https://static.usrfiles.com/ugd/b8c837_3dac6d33d23745beac1c2bc26ccdf979.pdf
- https://static.usrfiles.com/ugd/b8c837_74a5ce99115d458bb9fffb5bc40a766f.pdf
- https://static.usrfiles.com/ugd/bb13a2_37805ec0438b44dc9cb4cbd223e68467.pdf
- https://static.usrfiles.com/ugd/824332_5902b0d6d3434182ab0c6b1163e4b8c3.pdf
- https://cdn.shopify.com/s/files/1/0463/2566/1851/files/board_of_resolution_template.pdf
- https://cdn.shopify.com/s/files/1/0435/0348/5092/files/53309462762.pdf
- https://cdn.shopify.com/s/files/1/0433/6563/0102/files/32137121069.pdf
- https://cdn.shopify.com/s/files/1/0431/9635/0624/files/78349272326.pdf
- https://cdn.shopify.com/s/files/1/0453/8610/5000/files/banda_singh_bahadur_movie_free.pdf
- https://cdn.shopify.com/s/files/1/0438/0088/7457/files/runugojowapokatelujaxud.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lebalod.pdf
- https://cdn.shopify.com/s/files/1/0428/2938/1791/files/xesemibipesamifelim.pdf
- https://cdn.shopify.com/s/files/1/0463/7792/6811/files/sheet_metal_cutter_home_depot.pdf
- https://cdn.shopify.com/s/files/1/0432/6454/0835/files/writing_for_broadcast_media.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000051fc.bin` `e39f8106a3a17940a37dc73396656093bd9cc07bfe885458454b6efee98da065`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x51FC	4728 bytes
`font_01_sfnt_off0000620f.bin` `b55555152d73c21fbec06c749e6387adb7184235d76ad92cf50d061ef5e96ac2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x620F	10048 bytes
`font_02_sfnt_off000084ac.bin` `c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84AC	16092 bytes
`font_03_sfnt_off00009974.bin` `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9974	4324 bytes

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