Malicious PDF — malware analysis report

Static analysis result for SHA-256 384976121c7be0f7…

MALICIOUS

PDF

39.2 KB Created: 2020-08-30 17:55:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5782df1b31ae41eca25f93b8f16b4f81 SHA-1: a98735a82e8b070684f89c4e82e28a5bbc660d66 SHA-256: 384976121c7be0f75e50fb7865e7a64434e69c42fd0d44e798760c32c2397a80
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 'https://ttraff.com/wix?keyword=pokemon+black+2+randomizer'. This URL is presented within the document body, suggesting a social engineering lure related to 'pokemon black 2 randomizer'. The file also exhibits characteristics of a link farm, with numerous embedded URLs, though most resolve to benign content. 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/wix?keyword=pokemon+black+2+randomizer
    • https://static.usrfiles.com/ugd/b8c837_e28f30ce82144481a06ca84e8cbf376e.pdf
    • https://static.usrfiles.com/ugd/b8c837_4e20110fd41f4636b6ca4aa6395a8683.pdf
    • https://static.usrfiles.com/ugd/e3834b_0240779657274a7f843ae787e96fb22d.pdf
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/old_astrology_books_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0440/3019/7925/files/68652839990.pdf
    • https://cdn.shopify.com/s/files/1/0435/6793/9743/files/chinese_language_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51108684678.pdf
    • https://cdn.shopify.com/s/files/1/0432/1653/5720/files/48069723605.pdf
    • https://cdn.shopify.com/s/files/1/0433/6841/5400/files/tutorial_arduino_uno_bahasa_indonesia.pdf
    • https://cdn.shopify.com/s/files/1/0433/9207/3895/files/scp_from_local_to_remote.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/59082830734.pdf
    • https://cdn.shopify.com/s/files/1/0435/8812/4829/files/incident_at_absalom_station.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_off00005798.bin
067b5cf7bba3a012b5f667565bcf786f82cc276323251c5ec735b5cb3fa0b384		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5798 5296 bytes
font_01_sfnt_off00006985.bin
3539824843721e155e94e54190aeabf62fcdaeae1e4be1bc6c7776cdefcc2e27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6985 12252 bytes

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