Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa98185fdd035dee…

MALICIOUS

PDF

40.9 KB Created: 2020-08-03 01:40:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87704146ab7dabd527d255c1b014de8f SHA-1: e10b9a1c3e4523d69cae7070aca851dc45ddfa75 SHA-256: fa98185fdd035deed179045b8c92c313400db56af45ea05095993815f45d9605
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify-hosted PDFs, forming a link farm. One of the primary links, https://ttraff.ru/pify?keyword=im+with+busey, is identified as a malicious redirector. This suggests the document's purpose is to direct users to malicious infrastructure through a deceptive link farm. 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.ru/pify?keyword=im+with+busey
    • http://files.quigleymusic.net/uploads/1/3/0/8/130814644/kaguxerawufowazosi.pdf
    • http://files.myincredibleangel.com/uploads/1/3/0/7/130740249/dbdf96a9f33f2a.pdf
    • http://files.rexylafemme.com/uploads/1/3/1/4/131483138/1caf418f41e.pdf
    • http://files.escondidotreeservice.com/uploads/1/3/1/4/131406780/2bdbf9c7993dc.pdf
    • http://files.rusticcraftsandcalligraphy.com/uploads/1/3/2/7/132712080/pijedu.pdf
    • https://cdn.shopify.com/s/files/1/0435/5804/3797/files/in_rainbows_disk_2.pdf
    • https://cdn.shopify.com/s/files/1/0441/3915/1512/files/89720088941.pdf
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/vizio_remote_code_for_directv.pdf
    • https://cdn.shopify.com/s/files/1/0434/8107/1782/files/vixoza.pdf
    • https://cdn.shopify.com/s/files/1/0435/8720/7327/files/kunulirivizesuribolilal.pdf
    • https://cdn.shopify.com/s/files/1/0428/0755/8310/files/rijeridemu.pdf
    • https://cdn.shopify.com/s/files/1/0438/4178/1920/files/243625727.pdf
    • https://cdn.shopify.com/s/files/1/0435/3340/2266/files/23427389749.pdf
    • https://cdn.shopify.com/s/files/1/0430/5318/7223/files/sony_rx100_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/gaxisijekuzivojimipu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/38649769150.pdf
    • https://cdn.shopify.com/s/files/1/0431/7629/6614/files/53966851369.pdf
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/71235904337.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_off000064a1.bin
ce3f446b32bc6e0fcedefcd2b81c79064fdeb34d6240106607d20004310bf900		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64A1 4860 bytes
font_01_sfnt_off0000751b.bin
688d5f5a99331fa81b7b7d66107d553aa9c67ee4524e5a12c8d597f1ebe370ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x751B 9896 bytes

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