Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb4849a5527aa7c…

MALICIOUS

PDF

35.8 KB Created: 2020-08-31 00:33:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b170174303c6c3f1c2112a3e401e77fd SHA-1: 3d418323dcb4164494ec9fbedea2ce775f52dc82 SHA-256: ceb4849a5527aa7cb7b58c39dbd2a695f8e36a58628789ef8743072f5c0dd076
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment

The PDF contains a clear call-to-action and embeds multiple links, including one pointing to a known malicious redirector. The document body text and heuristics indicate a lure for cracked software, specifically 'Camtasia studio 8 crack'. The presence of a link farm suggests an attempt to distribute malicious content or engage in SEO poisoning.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=camtasia+studio+8+crack
    • https://cdn.shopify.com/s/files/1/0431/4356/1376/files/wibofa.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/vuwedubetegumojisi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8449/6550/files/86561276816.pdf
    • https://static.usrfiles.com/ugd/b8c837_da0e981594ba4776892747714e25d664.pdf
    • https://static.usrfiles.com/ugd/2ca09c_fbf46cb81abf4525b2b0b574a841466e.pdf
    • https://static.usrfiles.com/ugd/b8c837_275931a6218d46978e50a8921bcc6fe1.pdf
    • https://static.usrfiles.com/ugd/b8c837_c2fb51372f29401490b51c546366477a.pdf
    • https://static.usrfiles.com/ugd/764aaa_9b105c1c63664911b76040680706e967.pdf
    • https://static.usrfiles.com/ugd/455f95_2641e8dd9a4e4eecbcf9abd9e12df26f.pdf
    • https://cdn.shopify.com/s/files/1/0432/8967/3883/files/radial_piston_engine.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/kotor_naga_sadow_puzzle.pdf
    • https://cdn.shopify.com/s/files/1/0430/8588/9689/files/seismic_attributes_analysis.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_off00004ef8.bin
59de213066c040927c088d5056ab414b0640002833ffee688f47e7db3a6fb197		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EF8 5216 bytes
font_01_sfnt_off0000609c.bin
b93fd8fd6ce8e04fb1251096885163ec1886dc80e6446c992db067f7a14a1d47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x609C 10004 bytes

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