PDF malware analysis — malicious · ccde3beb5d6c1d17

MALICIOUS

PDF

53.8 KB Created: 2020-08-31 11:57:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6cce10658620459e429e373d966bd26f SHA-1: 4e656019d4682a525cb345430f4b482fe877eed3 SHA-256: ccde3beb5d6c1d1797d3b96930e1b2c7b5351b0ef0ad237ecabf0d0211c815fa

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to its structure, which includes a large number of external links. One of these links, 'https://ttraff.ru/wix?keyword=pre+parade+toradora+lyrics', is flagged as a known malicious redirector. The document body contains garbled text but also includes the same URL and a list of other PDF URLs hosted on static.usrfiles.com, suggesting a link farm designed to lure users to malicious content.

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=pre+parade+toradora+lyrics
- https://static.usrfiles.com/ugd/6d59ab_61e62caad9f9468fa2c6b0cc0359deff.pdf
- https://static.usrfiles.com/ugd/ade4e6_fdff9db4f89a479a98a2e4020480c0b7.pdf
- https://static.usrfiles.com/ugd/b8c837_fab6ea02989040ffa9f81bd0e7f73aa6.pdf
- https://static.usrfiles.com/ugd/f65175_deabea73801d427680fad8ca4d0a50d7.pdf
- https://static.usrfiles.com/ugd/451a43_5b7f378526ee48a7853dc43d8a51d199.pdf
- https://static.usrfiles.com/ugd/6cf392_7551cdc644264e94ab690399fc202e56.pdf
- https://static.usrfiles.com/ugd/e3834b_4d4ab5d0e80a4e76838568a493ece4ea.pdf
- https://static.usrfiles.com/ugd/ce0e6d_606565310b5f4bd0b67552afd440c95a.pdf
- https://static.usrfiles.com/ugd/b8c837_a7c462d476e04256a53a9cc320975875.pdf
- https://static.usrfiles.com/ugd/516793_8665e7e604b942be94ec35cab0a2682f.pdf
- https://static.usrfiles.com/ugd/b8c837_89d332af4a29486188fe47c5a757534d.pdf
- https://static.usrfiles.com/ugd/b8c837_059c75bd1f784c759520fbf3d2df20cb.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 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000064c6.bin` `02201fdaf2752f4422f7629c71039e5f766ffabbddac837aa70011d2fb945b01`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64C6	2828 bytes
`font_01_sfnt_off00006ed0.bin` `190bd31686db170944d1a5e1d49d569ed64d7108154944fbe89981dc1cb7477e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6ED0	4852 bytes
`font_02_sfnt_off00007f62.bin` `af22bb446f96e330f28049f802c0c7cad8eb295e3178885515f9e8e209c2a568`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F62	12124 bytes
`font_03_sfnt_off0000a657.bin` `0318b400cbd4eb80818b7eb131bcca2e18f343f850c5eb1573e525fea31f4d56`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA657	16204 bytes
`font_04_sfnt_off0000bba5.bin` `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBBA5	4324 bytes

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