PDF malware analysis — malicious · 2da1d6de2201ea81

MALICIOUS

PDF

38.9 KB Created: 2020-08-29 22:41:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9539990a36dbe9d13ada388f1199bd71 SHA-1: e05f7ffb377d29c3e86749e1a061fb4a4346ca72 SHA-256: 2da1d6de2201ea8197a6dde184846f5a5ce9e897ad198436368c41c728117876

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file exhibits characteristics of a link farm, embedding numerous external links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to ttraff.com. This suggests an attempt to redirect users to potentially harmful content or engage in SEO manipulation. While no scripts were extracted, the presence of multiple embedded URLs and the specific heuristic firings strongly indicate a malicious intent related to link redirection and potentially phishing or malware distribution.

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=tsunami+worksheet+ks3
- https://cdn.shopify.com/s/files/1/0432/9934/0448/files/aplicativo_para_baixar_musica_android.pdf
- https://cdn.shopify.com/s/files/1/0448/6879/6578/files/algal_biofertilizers.pdf
- https://cdn.shopify.com/s/files/1/0429/3427/2159/files/liwum.pdf
- https://cdn.shopify.com/s/files/1/0430/5072/9634/files/wekubi.pdf
- https://cdn.shopify.com/s/files/1/0446/1504/1187/files/10th_class_science_notes_rbse_2020.pdf
- https://static.usrfiles.com/ugd/b8c837_042c7a517b0643419b96d90e413b3267.pdf
- https://static.usrfiles.com/ugd/7e6083_1449c665c179444f8f426f4f8dd544f0.pdf
- https://static.usrfiles.com/ugd/122077_a2417cf143524216b94dca223bd9aa72.pdf
- https://static.usrfiles.com/ugd/b8c837_e9ddf0733eb54bbc9b41d317c0533e6f.pdf
- https://static.usrfiles.com/ugd/c7ef1a_bc5c12fe5066407ebd3aac74012de626.pdf
- https://static.usrfiles.com/ugd/b8c837_75c628a5be214b1691c4ee4cf0d159f7.pdf
- https://static.usrfiles.com/ugd/b8c837_f47ab693e40c4d2d8411d679fbc148b2.pdf
- https://static.usrfiles.com/ugd/b8c837_c4d409b1e6314d6f9d26c7c135f7d402.pdf
- https://static.usrfiles.com/ugd/b8c837_3cd7199bff8d4c31a113bfca1bdf1698.pdf
- https://static.usrfiles.com/ugd/b8c837_1084a64bd8f34b3bb5be5b58ab6427ce.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_off00004d1b.bin` `480f06c47f1ff7143417c256b1e3d75ccedd4251790904183c9d590014181e07`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4D1B	5044 bytes
`font_01_sfnt_off00005e20.bin` `2dfc633c0d6561238615a43623759d3e8311cd5a6847a2ce76b31145ffb2e9be`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E20	10108 bytes
`font_02_sfnt_off0000809b.bin` `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x809B	4324 bytes

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