Malicious PDF — malware analysis report

Static analysis result for SHA-256 52d18cb855d2da13…

MALICIOUS

PDF

50.7 KB Created: 2020-08-31 01:03:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e04b03c3bfae96a1e467135bd63fa4f SHA-1: a51ec554b217dc366c0ebc27fa540f8e2de65ced SHA-256: 52d18cb855d2da13c63735f1512728a2105dfcc2438eab817e58afbe50f4c246
130 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, including one pointing to a known malicious redirector. The document body text, though heavily obfuscated, contains a URL that appears to be a lure for downloading content. The presence of a 'download button' heuristic further supports this. The primary malicious URL identified is ttraff.com, which is likely used to redirect users to a final malicious destination.

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=correspondance+majuscule+script+maternelle
    • https://cdn.shopify.com/s/files/1/0428/6568/8743/files/diduzazobolenir.pdf
    • https://cdn.shopify.com/s/files/1/0440/6027/8949/files/62084291426.pdf
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/vigigateveginavikizepu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/70043790547.pdf
    • https://cdn.shopify.com/s/files/1/0435/4785/2959/files/camisa_do_flamengo_3_uniforme_2019.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9037/files/jafugunapoputomif.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/85804634464.pdf
    • https://cdn.shopify.com/s/files/1/0432/7201/1931/files/21195382628.pdf
    • https://static.usrfiles.com/ugd/4dd980_f7ced0d894db42fb867d2196ee8b9e27.pdf
    • https://static.usrfiles.com/ugd/de3d83_8f85502dab6a4304acddcf7ae3894cca.pdf
    • https://static.usrfiles.com/ugd/8127dd_56b9c84ddc7a4412a080798ad7a552c6.pdf
    • https://static.usrfiles.com/ugd/b8c837_baf03b0f78af4595a2ef86900b87d4ac.pdf
    • https://static.usrfiles.com/ugd/b8c837_ca5af8255dab4f77b418bf4e95e8d011.pdf
    • https://static.usrfiles.com/ugd/b8c837_0bcdf6cb6138444387f37b9c07b1e985.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_off0000814c.bin
6114bf32acf4fa59e845ea0a6b3aa1164d1027cd381e924e81f13068f3756d36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x814C 5200 bytes
font_01_sfnt_off000092e0.bin
9fdf53d77504c6e212c0d0a74e9b705701d65372ebb97970cb338ffc0eb64850		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92E0 13624 bytes

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