Malicious PDF — malware analysis report

Static analysis result for SHA-256 f85e877102119056…

MALICIOUS

PDF

52.4 KB Created: 2020-08-31 05:41:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 862b9dcaa9cef230abdc347728fee54e SHA-1: 458cf56442fbd400026bcbfcb8713dfd30188117 SHA-256: f85e8771021190569536fd75e87e3c82596544a55d6a7658f776a2eecc5f436c
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=grim+dawn+spectral+longsword', which is flagged as malicious. The presence of a large link farm suggests an attempt to manipulate search engine results or to distribute malicious content through seemingly benign links.

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/wix?keyword=grim+dawn+spectral+longsword
    • https://cdn.shopify.com/s/files/1/0434/8212/0357/files/1500_color_mixing_recipes_for_oil_acrylic_watercolor.pdf
    • https://cdn.shopify.com/s/files/1/0451/0623/3496/files/darksiders_fury_chaos_form.pdf
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/number_line_to_1000.pdf
    • https://static.usrfiles.com/ugd/ade4e6_4ab70709011b4543bfc1d94238998eed.pdf
    • https://static.usrfiles.com/ugd/d01287_2cc2f5b5732f42ba83f8f84ef38962b4.pdf
    • https://static.usrfiles.com/ugd/b8c837_cc88f8d536d54c9793ab3acb6a5863a3.pdf
    • https://cdn.shopify.com/s/files/1/0435/0846/5828/files/41631542211.pdf
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/gamibubivezujagusobeni.pdf
    • https://cdn.shopify.com/s/files/1/0429/5180/3039/files/25116994649.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4550/files/nesterj_nes_emulator_psp.pdf
    • https://cdn.shopify.com/s/files/1/0438/3562/1536/files/badosajikadurarus.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/36253015513.pdf
    • https://cdn.shopify.com/s/files/1/0432/8361/1801/files/68476422006.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_off0000837d.bin
7e167a2c8e5ed72b08eb656ff4db915646bb70864a08775b63dfd3aa793872ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x837D 5516 bytes
font_01_sfnt_off00009640.bin
4f73aa3bd5b260ce0ad4ccda9a91cc0d4898dce6040c40c89b249feefb4566f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9640 15204 bytes

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