Malicious PDF — malware analysis report

Static analysis result for SHA-256 210b2d3881db2ce7…

MALICIOUS

PDF

40.9 KB Created: 2020-08-12 20:12:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 857cee8c8b97d6f8de326e46dce84252 SHA-1: 31b1eda7b5bce780d1c70c1038726670fefb7968 SHA-256: 210b2d3881db2ce700f4911118cc944e03196012fd9809f23b3705e7261629fd
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. This suggests the primary purpose is to redirect the user to a malicious site, likely for further exploitation or phishing. No scripts were extracted from this sample.

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/wb?keyword=chemistry%20formulas%20list%20pdf
    • http://files.robbatesphotography.com/uploads/1/3/0/9/130969862/b8064c02855e.pdf
    • http://gewetivo.mistystevensbluegrass.net/uploads/1/3/1/3/131380600/xobakaboni.pdf
    • http://files.mpwsr.com/uploads/1/3/1/4/131438676/mufidifivivil.pdf
    • https://cdn.shopify.com/s/files/1/0435/5679/8615/files/37037079060.pdf
    • https://cdn.shopify.com/s/files/1/0432/9524/4452/files/ce_technical_file.pdf
    • https://cdn.shopify.com/s/files/1/0430/0131/5491/files/rosudotavexuvulaxumuroz.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/93681431196.pdf
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/likoborikesoxixofikerab.pdf
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/zolorofoz.pdf
    • https://cdn.shopify.com/s/files/1/0430/5007/4269/files/74078617381.pdf
    • https://cdn.shopify.com/s/files/1/0432/2846/3271/files/54740926020.pdf
    • https://cdn.shopify.com/s/files/1/0432/4609/2443/files/oxford_phonics_world_1_teacher_s_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/2058/2050/files/muwinivasodepimir.pdf
    • https://cdn.shopify.com/s/files/1/0433/3194/4602/files/kezixidesujogiga.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/
    • https://cdn.shopify.com/s/files/1/0428/59

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006271.bin
be087bc423656c9820ee9acf8f6b01f6ad75a70d5ac77111d0a817fef28a8280		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6271 5288 bytes
font_01_sfnt_off00007446.bin
0503f541a69b7d24600c8944cef1e672b9f9b0b924cac8ea4f36c419a7a4a7f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7446 10060 bytes

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