Malicious PDF — malware analysis report

Static analysis result for SHA-256 3388936e9924a55c…

MALICIOUS

PDF

48.5 KB Created: 2020-08-31 16:41:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7efc7f3dad83f1ada0cc72de8e69f73a SHA-1: 6ad82fbe702d2e5162ba4f0660d4ddb475e2f5b3 SHA-256: 3388936e9924a55c0a3cde43c367c0f0f416fcf6b4fb55a90632b76fb4366fbd
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=free+menu+design+templates+word'. This indicates an attempt to redirect the user to a malicious site, likely disguised as a free template download. The document body, though heavily obfuscated, contains references to the redirector URL and numerous benign-looking Shopify URLs, suggesting a link farm or SEO poisoning tactic to attract victims. The presence of a malicious redirector strongly suggests a phishing or social engineering attack.

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.ru/wix?keyword=free+menu+design+templates+word
    • https://cdn.shopify.com/s/files/1/0435/8311/1325/files/design_thinking_powerpoint.pdf
    • https://cdn.shopify.com/s/files/1/0432/7761/5262/files/81231626695.pdf
    • https://cdn.shopify.com/s/files/1/0432/0077/4307/files/simplifying_algebraic_expression_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0436/1938/5504/files/fosefororirovij.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/20897299531.pdf
    • https://static.usrfiles.com/ugd/b8c837_0f8bb2eb0fc340af9d1700524db704ec.pdf
    • https://static.usrfiles.com/ugd/83b1b3_694f220142da46ad9ef16ae6ff143480.pdf
    • https://static.usrfiles.com/ugd/6924eb_0866064595314fc1b8b694070c05006a.pdf
    • https://static.usrfiles.com/ugd/5be868_dfd43adc5dad4fb383ed51783ac294ac.pdf
    • https://static.usrfiles.com/ugd/b8c837_3815727925dd42259fa02637e1780102.pdf
    • https://static.usrfiles.com/ugd/c7a620_9011c59c0b01443e8834112504b0d567.pdf
    • https://static.usrfiles.com/ugd/b8c837_63c0b9f2540f43eb8908bfb08b4540fe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007286.bin
6894dbcc1f207325cdd09ea905a4d81dc4bfd16bc44e47d77d41e36c73951c43
pdf-font-stream PDF embedded font (sfnt) at offset 0x7286 5208 bytes
font_01_sfnt_off0000842a.bin
e2abdfff3c42e61c803758f6a05a405b85401aafe21b9f31d7f2e9f6ed6740b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x842A 10272 bytes
font_02_sfnt_off0000a70f.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA70F 4324 bytes