Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0c033e8480e8041…

MALICIOUS

PDF

52.9 KB Created: 2020-08-29 09:21:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63e97c830a720ddb35cf76b69c03f41f SHA-1: ddcd90468450ef3a3a00e6d9cc8c8bfd43a9b004 SHA-256: a0c033e8480e8041a2ecb68f721893fedcad66405884da9a4e12c9bfde8214d3
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to a known malicious redirector. Additionally, PDF_SEO_LINK_FARM indicates a large number of external PDF links, with the primary malicious link being ttraff.com. The document body contains obfuscated text and the malicious URL, suggesting a phishing or redirection attempt.

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=captured+by+dark+elves
    • https://cdn.shopify.com/s/files/1/0428/2066/5510/files/bella_ciao_piano_sheet_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/7015/3113/files/72491286269.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/35871351632.pdf
    • https://cdn.shopify.com/s/files/1/0431/7102/0954/files/negobazine.pdf
    • https://cdn.shopify.com/s/files/1/0433/6307/4213/files/33544560099.pdf
    • https://cdn.shopify.com/s/files/1/0438/2500/4706/files/ansys_fluent_meshing_tutorial.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb33f4e8c93a45b0a8f7d5170809031b.pdf
    • https://static.usrfiles.com/ugd/b8c837_7d10fabd072346dda4cf7dba52b25347.pdf
    • https://static.usrfiles.com/ugd/b8c837_b9464c5a347c4eaf88625084b4a2eb7a.pdf
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/hitchhiker_s_guide_poster.pdf
    • https://cdn.shopify.com/s/files/1/0462/7261/0464/files/fortinet_100d_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/liselidapulogajivetag.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_off000091cd.bin
298f35c3d6bfa7269f9a302c61a585b81b50b14505e3cee7e52c6972676fe68c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91CD 5224 bytes
font_01_sfnt_off0000a3ab.bin
4efc947ad290f27c47a43fc8d765a79c5beb7809b26750add9830f5f4e16c2da		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3AB 10380 bytes

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