PDF malware analysis — malicious · 2c2fad22995d47f2

MALICIOUS

PDF

45.3 KB Created: 2020-08-31 09:43:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a3e89569a92ffc3b970502d33d9b79fc SHA-1: b2742ade1e591b31b3d50b39544f9400309545ac SHA-256: 2c2fad22995d47f2c2452cdcd46547f6ce475d75b782080de7b81140547d6e7a

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, suggesting an SEO manipulation or link farm tactic. The primary malicious URL identified is ttraff.com, which is known to host redirectors. While no scripts were extracted, the sheer volume of outbound links and the specific heuristic firings strongly indicate a malicious intent to lure users to external, potentially harmful, content.

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.com/wix?keyword=how+to+make+a+popup+book
- https://static.usrfiles.com/ugd/599026_2961b4be52a94392983235af0984c067.pdf
- https://static.usrfiles.com/ugd/0adedf_2fa1dc9702d34bab9f1ecae69c8738f1.pdf
- https://static.usrfiles.com/ugd/ef7b09_2965174643664e25b05861fbfc346a86.pdf
- https://static.usrfiles.com/ugd/0cd3a8_779071fa26d14c4fb7d24b84cda073db.pdf
- https://cdn.shopify.com/s/files/1/0428/4379/9719/files/operational_problems_in_activated_sludge_process.pdf
- https://cdn.shopify.com/s/files/1/0433/3669/5959/files/apple_checklist_template.pdf
- https://static.usrfiles.com/ugd/d7ba0f_3c0fdd29cc054e46b8eb618c150e330b.pdf
- https://static.usrfiles.com/ugd/b8c837_b54901a16fa140ae866ad1d87633440b.pdf
- https://static.usrfiles.com/ugd/227d0f_5e45c27708054e64bf134ee2ac6bc726.pdf
- https://static.usrfiles.com/ugd/ac51ce_61939d57821b4802b2ca6bdf75f3cbbd.pdf
- https://static.usrfiles.com/ugd/b8c837_9d11b6247966490d9a33fece389ace91.pdf
- https://static.usrfiles.com/ugd/b7ed05_35fbdbba41104513afd5756f8bd4f10a.pdf
- https://static.usrfiles.com/ugd/b8c837_888f59ec70074bd3a5890c41ceb6bcb8.pdf
- https://static.usrfiles.com/ugd/edb4a7_d8d5ba487f0f448ea5b60b77f9bf9d7e.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_off00006768.bin` `172d51be306826b6217446ea3ab77b2cfd2d16bc80aa56e04559f28f55db1d73`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6768	4644 bytes
`font_01_sfnt_off00007740.bin` `f6c854743293fe388a66569131d5cc6cf24c18dfb8f7715094b51eae4bda3831`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7740	10328 bytes
`font_02_sfnt_off00009a5b.bin` `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A5B	4324 bytes

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