PDF malware analysis — malicious · d3123d76748e0751

MALICIOUS

PDF

47.2 KB Created: 2020-08-30 05:27:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bc5f56601ef98fd88c29921de262985e SHA-1: 5dbdbea4e2ece3c63f02fe67a7031ee9173819e2 SHA-256: d3123d76748e075148a37387c0d1baa6e7de7d1da87f71798171de5bd81184a4

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a redirector URL. The document body text, though heavily obfuscated, contains the target URL and references to 'mods de vegetta 777', likely a lure. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or redirection attempt. No scripts were extracted, but the PDF structure itself is used for the attack.

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.cc/wix?keyword=todos+los+mods+de+vegetta+777
- https://static.usrfiles.com/ugd/c4ccc4_7eb03d54ae2943d58d32bad2a4a6f0b5.pdf
- https://static.usrfiles.com/ugd/82e28d_bba365d492e74d918771acf7ba43e04f.pdf
- https://static.usrfiles.com/ugd/b8c837_85610b545a39410487a610b3e7dfc8c2.pdf
- https://static.usrfiles.com/ugd/b8c837_17843f1b74f547aab2b79d085ca6893f.pdf
- https://static.usrfiles.com/ugd/b8c837_667dfbe41eec4e3195ef6593cafb208b.pdf
- https://static.usrfiles.com/ugd/b8c837_6b55a81714a74976b0b84c4e3d273943.pdf
- https://static.usrfiles.com/ugd/4bb894_25dc38573f2b4ebf8eb01b9ec1e4b2c0.pdf
- https://static.usrfiles.com/ugd/5de1df_99967d4afa7e49dbabd54a4c94d3dc00.pdf
- https://static.usrfiles.com/ugd/49be48_e67b69c5038346d1a061b0cd10f36d0f.pdf
- https://cdn.shopify.com/s/files/1/0431/6564/7002/files/gumafubevadomoter.pdf
- https://cdn.shopify.com/s/files/1/0429/9613/8137/files/79870067074.pdf
- https://cdn.shopify.com/s/files/1/0431/5630/8123/files/bodmas_worksheets_for_grade_7.pdf
- https://cdn.shopify.com/s/files/1/0437/6264/7191/files/scientific_names_of_common_plants_and_animals.pdf
- https://cdn.shopify.com/s/files/1/0429/0989/2767/files/compound_sentences_worksheets_with_answers.pdf
- https://cdn.shopify.com/s/files/1/0440/2721/6037/files/14753180737.pdf
- https://cdn.shopify.com/s/files/1/0436/5628/2265/files/57324855167.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_off00007988.bin` `9748453a47606d2d9b7b9354c0cb2a55b1858db7e57eae1b90bd0df4b280bc3b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7988	5140 bytes
`font_01_sfnt_off00008b09.bin` `a7d7314d7163fc49c27523ac14d574deb36dc0c06b38c0a050833164dd9c2332`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B09	10872 bytes

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