Malicious PDF — malware analysis report

Static analysis result for SHA-256 464bbec9bd693142…

MALICIOUS

PDF

41.0 KB Created: 2020-08-31 00:47:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c33ccd61260e110d80cda4aa6289cd8f SHA-1: b2cccffa76e6a0659c22af6ef67a4f93186075f8 SHA-256: 464bbec9bd693142c88122d8bb592d195cda79869f6ad4bbd14f5b3ee03c98fc
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a large number of embedded external links, with a critical heuristic firing indicating it's a malicious redirector. One of the primary links points to 'ttraff.cc', a known malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the document's purpose is to lure users to malicious sites. The ML classifier also strongly flagged this PDF as malicious.

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=five+languages+of+apology
    • https://static.usrfiles.com/ugd/0d2908_a47ec79a040740348bc12e61c9f50ae7.pdf
    • https://static.usrfiles.com/ugd/b8c837_1f2ba7c7dd6148fb955195fcd3266268.pdf
    • https://static.usrfiles.com/ugd/9219f8_29c44a840c9c4973aac5a04c25ed45b7.pdf
    • https://static.usrfiles.com/ugd/8e1900_c5cba3ae5d9f483cbab7ebed8f6ebd79.pdf
    • https://static.usrfiles.com/ugd/b8c837_8fd79bb1f9024c4aa36f6bef30a955dc.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mijafovaginidobu.pdf
    • https://cdn.shopify.com/s/files/1/0439/8150/4670/files/nijuvivulozepoligi.pdf
    • https://static.usrfiles.com/ugd/b8c837_c692caf4a0a64d8ca1ba09c60602eacc.pdf
    • https://static.usrfiles.com/ugd/b8c837_0252aac7b25f41178d4ae09497bf6393.pdf
    • https://static.usrfiles.com/ugd/fef806_a0852cc4a12e4f32b71c9a602e9454b6.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_832238c8cbdc4776ace71100c99994f4.pdf
    • https://static.usrfiles.com/ugd/221f3a_2b87c553e3bb4f6786a02f73d5def182.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdf
    • https://cdn.shopify.com/s/files/1/0431/6944/8096/files/giwumudonojeneganer.pdf
    • https://cdn.shopify.com/s/files/1/0429/6392/7206/files/what_is_lcore._exe.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_off00006374.bin
80fb4c88d7fa761636e00e062ed22547864ea834bfb335a4732508a45a7a0880		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6374 5092 bytes
font_01_sfnt_off000074f4.bin
548b032d360d1f225c7bfb632c9110fdaaa6dc1f2be945eb066c5e6ffce0523c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74F4 10088 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.