Malicious PDF — malware analysis report

Static analysis result for SHA-256 946b07874c6ef91b…

MALICIOUS

PDF

39.9 KB Created: 2020-08-29 23:32:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 068697b5652f6d66355ec516f39d8d95 SHA-1: 4f300864720aa5d859917b9f4cc4a37235f549e5 SHA-256: 946b07874c6ef91b53458b0e77b67354916e8e61f17484c9ed149274b693cad1
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to watching a movie online and includes the same malicious URL. This suggests the PDF is designed as a lure to redirect users to malicious sites, likely for further exploitation or phishing. No scripts were extracted from this sample.

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=watch+happy+gilmore+online+free
    • https://cdn.shopify.com/s/files/1/0437/8984/4641/files/41724168080.pdf
    • https://cdn.shopify.com/s/files/1/0429/8109/7631/files/libudoleniruxetu.pdf
    • https://cdn.shopify.com/s/files/1/0437/5026/0890/files/ncert_maths_book_class_10.pdf
    • https://static.usrfiles.com/ugd/8b97dd_3c82e71b7ebc44da8b21d91bb1578def.pdf
    • https://static.usrfiles.com/ugd/b8c837_9cb0c7f7e05c460f8636592472dbac9e.pdf
    • https://cdn.shopify.com/s/files/1/0460/7138/2180/files/h_d_u_ka_full_form.pdf
    • https://cdn.shopify.com/s/files/1/0437/6081/2190/files/garupesiviwusaxexepeziro.pdf
    • https://cdn.shopify.com/s/files/1/0429/2853/7753/files/gufazufobiwedak.pdf
    • https://cdn.shopify.com/s/files/1/0436/1093/1358/files/tokofakemerufipefupu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4323/2661/files/92683336176.pdf
    • https://cdn.shopify.com/s/files/1/0432/1060/4705/files/samigavimojokatubija.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.

FilenameKindSourceSize
font_00_sfnt_off00005ea9.bin
2b3f52ee31d005e296a5985881a7dcc1fc03508a6b6add7b6d546b35d55f63c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA9 5368 bytes
font_01_sfnt_off000070dd.bin
8d3b6fc54f888d84377512dbc8393bdca6cc2f56cd36733ba91fcf4b3a420973		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70DD 10040 bytes

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