Malicious PDF — malware analysis report

Static analysis result for SHA-256 92ff3099eea4b33f…

MALICIOUS

PDF

40.2 KB Created: 2020-08-25 20:58:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52dc18dcd42f70fca95fe6bf6ee203b8 SHA-1: 23840838791bab31b8694a830393136c1e1b3ec1 SHA-256: 92ff3099eea4b33f15261babb5b2fc1f7a82dddd9bf501dc22d6a45ee9bd3439
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF document contains a link farm designed to appear as legitimate content, but the primary link redirects to a known malicious redirector. The document's body text is obfuscated and contains the malicious URL, suggesting a lure to a phishing or malware distribution site. No scripts were extracted, but the PDF structure and embedded links strongly indicate a malicious 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.cc/pify?keyword=sap+gl+account+group+description+table
    • http://files.classiquespa.com/uploads/1/3/2/7/132712302/1121434.pdf
    • https://cdn.shopify.com/s/files/1/0439/2330/8712/files/fevamuvenigi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3821/1228/files/toziwikoralatuzepim.pdf
    • https://cdn.shopify.com/s/files/1/0431/0640/2453/files/wifofivoxazaxumaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/8851/9076/files/bumokopogixixinidafina.pdf
    • https://cdn.shopify.com/s/files/1/0437/8918/9272/files/mabater.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/gapinulokejir.pdf
    • https://cdn.shopify.com/s/files/1/0430/7497/7945/files/34229934161.pdf
    • https://cdn.shopify.com/s/files/1/0435/2311/3119/files/poxogemigudopilisadabokeg.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepikopu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6737/4758/files/bavuxokuvozukopisug.pdf
    • https://cdn.shopify.com/s/files/1/0429/2929/1427/files/61713276226.pdf
    • https://cdn.shopify.com/s/files/1/0437/2630/7480/files/bugopavi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3991/5164/files/derewajeduzumexunirokaluv.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_off00005ef8.bin
2da96ab19abe284288c4c6ae8bd10ec81c17e25d6ad6647320cceeec99194610		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF8 5484 bytes
font_01_sfnt_off00007196.bin
d5682f7a19a2584326f57c542d4a165191168942d4df9601d69354715b607f4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7196 10084 bytes

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