Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdc4782102574d55…

MALICIOUS

PDF

36.3 KB Created: 2020-09-01 01:26:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e70586415b5c677d4110b531e40dbf5 SHA-1: df735f240c1f953fce254389314d7f0727ffbb54 SHA-256: cdc4782102574d55d75231e82fdee98633e83ca457e11b1a373654e862435681
120 Risk Score

Malware Insights

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

The PDF file contains embedded links, one of which, https://ttraff.com/wix?keyword=south+movie++3gp+mp4+2018, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to movie-related terms and the malicious URL, suggesting a lure to entice users to click the link. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO poisoning attempt to distribute the malicious content.

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=south+movie++3gp+mp4+2018
    • https://static.usrfiles.com/ugd/61f964_9088df36f2994cc6a67e2c8bd7a2f7e5.pdf
    • https://static.usrfiles.com/ugd/a18aa6_f5ce6963f05741c99bf0cb5df384d113.pdf
    • https://static.usrfiles.com/ugd/b8c837_7c92dc5782b14e0b80868bdc27535de6.pdf
    • https://static.usrfiles.com/ugd/d5d855_d63cfe3274f84812bc47ffd7ac7a2315.pdf
    • https://cdn.shopify.com/s/files/1/0432/5025/3979/files/erick_sermon_vernia_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/5821/7631/files/kusazuzijekolabibupi.pdf
    • https://cdn.shopify.com/s/files/1/0437/3869/3797/files/lozif.pdf
    • https://cdn.shopify.com/s/files/1/0440/8947/5237/files/banderas_de_la_primera_guerra_mundial.pdf
    • https://cdn.shopify.com/s/files/1/0433/3427/1126/files/gunuwuropowikamavovem.pdf
    • https://cdn.shopify.com/s/files/1/0438/8257/8088/files/irs_form_8812.pdf
    • https://cdn.shopify.com/s/files/1/0432/4058/7423/files/rumurekuluza.pdf
    • https://cdn.shopify.com/s/files/1/0428/8416/9894/files/zelebufufu.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_off00004483.bin
bdcf7b4245da0715fa69bfe73418e44812806e3ba3af02343d03c95c8a897b87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4483 5652 bytes
font_01_sfnt_off000057c6.bin
67828f74a04497b866c7bc9b772cd6f60ecc709af0cecfe7afd60e83fb748b43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57C6 14256 bytes

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