PDF malware analysis — malicious · 9f1fba2a892d122f

MALICIOUS

PDF

49.7 KB Created: 2020-08-30 10:07:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 64153b762f290bfb51183a6d53c63517 SHA-1: 1194bb00f90180e230b714a46bc0a77b9be220bc SHA-256: 9f1fba2a892d122f75903cd9ba3aa7cdb0fc3dcb326e86b9f50dd352b264e9a1

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic indicating it links to known malicious redirector infrastructure. The embedded URL, https://ttraff.cc/wix?keyword=exercice+accord+participe+pass%25C3%25A9+3eme+pdf, is the primary indicator of malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a PDF exercise, aiming to trick the user into clicking the malicious link.

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.cc/wix?keyword=exercice+accord+participe+pass%25C3%25A9+3eme+pdf
- https://static.usrfiles.com/ugd/b8c837_4f3c77502bd8481685a7886b86258d2a.pdf
- https://static.usrfiles.com/ugd/b8c837_2f3a53aed817421298ef206ac3598351.pdf
- https://static.usrfiles.com/ugd/b8c837_276d3c03b4504be19a1ccddf857fb248.pdf
- https://static.usrfiles.com/ugd/b8c837_b11fb9b6e82542b783bc017fea5d10af.pdf
- https://static.usrfiles.com/ugd/b8c837_9f6098a780084613aac26b7d57425968.pdf
- https://static.usrfiles.com/ugd/a382ee_75380ac191e5449b8b17c5b9ccfd17e3.pdf
- https://static.usrfiles.com/ugd/b8bbd7_223591c7d9f14a5cbbe81304a509c3c1.pdf
- https://static.usrfiles.com/ugd/b8c837_3f4f84a6a05a415fadeb236f94690782.pdf
- https://static.usrfiles.com/ugd/760101_e3802c650af445e49780591a6b4be838.pdf
- https://cdn.shopify.com/s/files/1/0434/3041/2454/files/45248622030.pdf
- https://cdn.shopify.com/s/files/1/0432/7407/6315/files/navy_advancement_manual.pdf
- https://cdn.shopify.com/s/files/1/0429/7487/1711/files/filubizufovizuwiwujata.pdf
- https://cdn.shopify.com/s/files/1/0435/2314/5896/files/bamuboralegevatudozawed.pdf
- https://static.usrfiles.com/ugd/b8c837_421e14b7ca234560853dc5bebd232cee.pdf
- https://static.usrfiles.com/ugd/b8c837_fef08631cb184895a3de57d13cc79efe.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/
- https://cdn.shopify.com/s/files/1/0429/7487/1711/files/filubizuf

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006983.bin` `8f8281bbfb78e1a3bd0368d95a62fdc564402888fb6b6097c99eb7f33aecc489`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6983	5600 bytes
`font_01_sfnt_off00007c34.bin` `d58e3d0c1ab4634d45a87e84b513d3b275819cae89cf3a4404d699d58bd4184f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C34	12272 bytes
`font_02_sfnt_off0000a26a.bin` `bf2bb651642035a19e1b8bf5dc55c4db7948913289cd11d1f66f0c65c0fed8c7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA26A	16080 bytes

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