Malicious PDF — malware analysis report

Static analysis result for SHA-256 58137c818365b8f3…

MALICIOUS

PDF

56.5 KB Created: 2020-09-10 19:28:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d0efa92223dbb68b7413a07a85d0926 SHA-1: 41377a7d5d5f7af85e92e4926b7a93b2e588303f SHA-256: 58137c818365b8f32530df3486ea5bed298d5927338ea6077f2cd64ebad9cae0
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1200 Hardware Add-in Systems

The PDF was flagged for containing a malicious redirector link and a large number of external links, suggesting a link farm. The primary malicious URL identified is 'https://ttraff.me/wix?keyword=inquisitor+pathfinder+character+sheet'. The document body contains obfuscated text and embedded URLs, reinforcing the malicious intent. No scripts were extracted, and the family is unknown.

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.me/wix?keyword=inquisitor+pathfinder+character+sheet
    • https://cdn.shopify.com/s/files/1/0430/9290/2039/files/88373206363.pdf
    • https://cdn.shopify.com/s/files/1/0434/0649/1797/files/advantages_of_free_trade.pdf
    • https://cdn.shopify.com/s/files/1/0431/5702/9018/files/39243178554.pdf
    • https://cdn.shopify.com/s/files/1/0432/9183/6571/files/zuxisotowamite.pdf
    • https://cdn.shopify.com/s/files/1/0438/6347/4331/files/88200815961.pdf
    • https://cdn.shopify.com/s/files/1/0431/1787/1265/files/pdf_bestanden_samenvoegen_tot_1_bestand.pdf
    • https://cdn.shopify.com/s/files/1/0438/9827/3944/files/zumadubulopa.pdf
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/dawn_of_war_soulstorm_unit_guide.pdf
    • https://static.usrfiles.com/ugd/c34aa9_03647006d988496d81050ffa02efa979.pdf
    • https://static.usrfiles.com/ugd/e745be_f2efe2a02edb4d4590295286a31f3b16.pdf
    • https://static.usrfiles.com/ugd/16a96a_56ac103b63104f04813a4c4cd194faa7.pdf
    • https://static.usrfiles.com/ugd/b7306e_7797de002fbb4b3a8329ac68d542c15c.pdf
    • https://static.usrfiles.com/ugd/12daa7_2f5fcb5766514a44813824f4b819b2d8.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_off0000a009.bin
42e7a09620b33c7218c0b199f801a918ce215050f880c84a868694a3b156795c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA009 5272 bytes
font_01_sfnt_off0000b1ef.bin
1bc77f4236c468584776a39ed264936a9815bead331b45e937f49956eba60683		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB1EF 10344 bytes

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