Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa29761beeefa0c6…

MALICIOUS

PDF

46.8 KB Created: 2020-08-17 10:38:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd62f47f534691629cb6b47fe51c14ae SHA-1: c166c15a40a3065abd78e90bb8f805889068a60f SHA-256: fa29761beeefa0c694608d06e83a2d0e9dcc7645302bbc3da932b1fba29ac66b
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=adobe+photoshop+cs6+mac'. This URL is presented within the document body, suggesting a social engineering lure to trick users into downloading potentially malicious content. The presence of a PDF link farm heuristic further indicates a pattern of distributing links, likely for SEO poisoning or to obscure the true destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=adobe+photoshop+cs6+mac
    • http://files.sapphiredobermans.com/uploads/1/3/1/4/131453395/c16ea.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/40613198741.pdf
    • https://cdn.shopify.com/s/files/1/0436/9845/4693/files/worafibatesiri.pdf
    • https://cdn.shopify.com/s/files/1/0438/4813/8912/files/36258184468.pdf
    • https://cdn.shopify.com/s/files/1/0433/7152/8344/files/celeron_j3355_performance.pdf
    • https://cdn.shopify.com/s/files/1/0437/6245/0586/files/aprender_portugues_para_estrangeiros.pdf
    • https://cdn.shopify.com/s/files/1/0432/1820/6887/files/287538378.pdf
    • https://cdn.shopify.com/s/files/1/0436/5362/8062/files/54243372531.pdf
    • https://cdn.shopify.com/s/files/1/0436/4409/2566/files/tovawalakugop.pdf
    • https://cdn.shopify.com/s/files/1/0431/5945/3860/files/29557177643.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/samogobinusafawebeviguvad.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_off00007902.bin
4633465127ac7a5f516ca846288ee8ae788dc9bd5b6328af7c05edf72ae4ab8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7902 5468 bytes
font_01_sfnt_off00008b74.bin
d428f7914e5206ed98ac634cbf44c321cea1b35182ee3660000e7f6067b26842		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B74 10336 bytes

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