Malicious PDF — malware analysis report

Static analysis result for SHA-256 871d0ded86cb28ef…

MALICIOUS

PDF

41.0 KB Created: 2020-08-25 01:53:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 736724416f3e2bd996306a52ea14f261 SHA-1: d34c7124f9fb798f5f76d6c2ec9cc86562ac328f SHA-256: 871d0ded86cb28ef5d4fa482cc3bd60c902520319585e478504737b1c033c9bb
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a direct link to a known malicious redirector. The document body, though partially corrupted, contains text referencing 'Final fantasy tactics 1. 3 guide' and includes the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous shopify.com links suggests an attempt to blend in with benign content while hosting the malicious redirector.

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.ru/pify?keyword=final+fantasy+tactics+1.+3+guide
    • http://butofe.lebeausejour.ch/uploads/1/3/0/8/130814526/5940941.pdf
    • http://files.kitsuneillustrations.com/uploads/1/3/1/6/131637477/jisor.pdf
    • http://files.mikemarrone.com/uploads/1/3/2/7/132740253/4be074b15fb.pdf
    • https://cdn.shopify.com/s/files/1/0430/7196/3296/files/94518159020.pdf
    • https://cdn.shopify.com/s/files/1/0439/2045/7883/files/my_name_is_yoon.pdf
    • https://cdn.shopify.com/s/files/1/0441/2165/3400/files/lagu_berry_good_oh_oh_ilkpop.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/47801113177.pdf
    • https://cdn.shopify.com/s/files/1/0432/6460/6372/files/bear_emoji_text.pdf
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/4245611647.pdf
    • https://cdn.shopify.com/s/files/1/0437/5203/0357/files/juzebewipinej.pdf
    • https://cdn.shopify.com/s/files/1/0428/2764/5095/files/xforce_autodesk_2014_64_bit.pdf
    • https://cdn.shopify.com/s/files/1/0464/9441/7064/files/kebirorusopanadowatomof.pdf
    • https://cdn.shopify.com/s/files/1/0430/8303/8881/files/eclipse_ide_free_for_java_developers.pdf
    • https://cdn.shopify.com/s/files/1/0438/0416/4257/files/cara_menggunakan_multitester_analog.pdf
    • https://cdn.shopify.com/s/files/1/0439/6243/3694/files/funcion_de_la_hormona_antidiuretica.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_off000062c0.bin
7e3c216402ec9e7a7f22922eec61b30d1f6c1fae195da35b42b7698cb65d37d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62C0 5396 bytes
font_01_sfnt_off00007534.bin
8fe650ef3d0c445ff2ee5d8d1c783ae65e4a5d1edd50da6cc8c1d57983142d2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7534 10012 bytes

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