Malicious PDF — malware analysis report

Static analysis result for SHA-256 f86a703ece22ecbb…

MALICIOUS

PDF

69.1 KB Created: 2020-09-01 02:59:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58f07518d6443fe05c314f4f1ddaa2a2 SHA-1: 43645384d9e82ba62eb46a237f66c4aa9eaf3fa8 SHA-256: f86a703ece22ecbbd909b4ae658dd0af5cafec094d3523fb7eda720f8f3dd4a7
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ttraff.cc/wix?keyword=balu+balu+songs' is the primary indicator of malicious intent. The document body contains garbled text and what appears to be the same URL, suggesting it's a lure. No scripts were extracted, and the PDF structure itself does not indicate further exploitation beyond 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=balu+balu+songs
    • https://static.usrfiles.com/ugd/1813b3_fec3b13c106d42e9a5929636c5296310.pdf
    • https://static.usrfiles.com/ugd/b8c837_0ddab2ec31584d88b077cba969f071b2.pdf
    • https://static.usrfiles.com/ugd/429b25_d8fa189b1522409daebcdd102ca6b070.pdf
    • https://static.usrfiles.com/ugd/b8c837_6e7907bb8ad34464a06d44978dde9dd4.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinubigelezegir.pdf
    • https://cdn.shopify.com/s/files/1/0428/6572/1503/files/82181647517.pdf
    • https://cdn.shopify.com/s/files/1/0435/8710/9023/files/37970205331.pdf
    • https://cdn.shopify.com/s/files/1/0434/0177/3212/files/4563052067.pdf
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/kenmore_bottom_freezer_ice_maker_not_working.pdf
    • https://cdn.shopify.com/s/files/1/0463/1166/9917/files/68429489629.pdf
    • https://cdn.shopify.com/s/files/1/0431/8307/9592/files/jamutadofebawu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3616/4774/files/ninil.pdf
    • https://cdn.shopify.com/s/files/1/0440/5483/9461/files/99557269314.pdf
    • https://cdn.shopify.com/s/files/1/0434/3375/4773/files/tuvivavi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8714/2819/files/jadetewopefuxurefuruz.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_off0000ceb5.bin
4cde4f751ad8e6ada4b091a89c72f6e241997c0e3f3069e3a46299165b4ad383		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB5 4944 bytes
font_01_sfnt_off0000df9d.bin
1e597ba0c875ff08e7405c35d0f53c618352c300693c16a73e7ad82a71485e67		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF9D 12740 bytes

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