PDF malware analysis — malicious · f6ca822492ad69d9

MALICIOUS

PDF

50.4 KB Created: 2020-09-01 04:30:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 56de52427a80674edfe483b35606a36e SHA-1: 6b61a583070254bedbe8110e6032b06cacef88de SHA-256: f6ca822492ad69d9907381612a5c3fb6a0aa3d24b95ba1deb240dfe54133c0db

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.club'. This URL is embedded within the document body, disguised as a download link for a camera manual. The PDF also contains a link farm heuristic, indicating a large number of outbound links, many of which point to 'static.usrfiles.com'. The presence of a visual download button lure further supports the phishing attempt.

Heuristics 4

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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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.club/wix?keyword=canon+eos+rebel+t3i+digital+camera+manual
- https://static.usrfiles.com/ugd/b8c837_b72dee6326534a7fa73e2601425d7c25.pdf
- https://static.usrfiles.com/ugd/ae15ca_3fee062838a642c4bbaf08d76c62c7dc.pdf
- https://static.usrfiles.com/ugd/e2f197_3d0aa9ae993b47ccaf2f09397b0b0731.pdf
- https://static.usrfiles.com/ugd/c5d40f_5acf91dd08d7484a80cf24d61072280b.pdf
- https://static.usrfiles.com/ugd/dd4472_f3907db345cb433f967df56de04a1c97.pdf
- https://cdn.shopify.com/s/files/1/0440/1161/8462/files/cbse_class_12_english_question_paper_2020_solved.pdf
- https://cdn.shopify.com/s/files/1/0437/1375/7339/files/81816169185.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86662201832.pdf
- https://static.usrfiles.com/ugd/b8c837_11d6c5dc5fcd45b691e18ddb7d4e19c8.pdf
- https://static.usrfiles.com/ugd/cbdbb6_5add591ff0344a069d2a5ec79b18ca30.pdf
- https://static.usrfiles.com/ugd/b8c837_0ee06d60f0284a798a6b926a51b6b185.pdf
- https://static.usrfiles.com/ugd/37428b_ba8ce97eca5b4a01b52de249f5374212.pdf
- https://static.usrfiles.com/ugd/9c0842_10c2e49e4a5e4fecaf259b3520b8641c.pdf
- https://static.usrfiles.com/ugd/76156b_bc1743b85d20498c81fbb80eae2f0ae2.pdf
- https://static.usrfiles.com/ugd/2d1648_effaab0ffcf24259a00db7f0788a5c01.pdf
- https://static.usrfiles.com/ugd/63d3ad_f604bc038d8b4b6fa31060ff700fea88.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00008806.bin` `3cc749af176285efc38d15f489d55f517c9341c62209402f0100c0ece2e540e7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8806	5468 bytes
`font_01_sfnt_off00009a81.bin` `06a1bc1c95212f5a6456cd51e3ec7ebd4590048516e4b521381e55b609ae817c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A81	10012 bytes

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