Malicious PDF — malware analysis report

Static analysis result for SHA-256 eda000c049b7017c…

MALICIOUS

PDF

39.5 KB Created: 2020-08-15 05:20:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 877f3b3bd904a6f7a84a24c178ac7a28 SHA-1: f8aa803b3e005f1eb738f88b439dfc59d98f5fa0 SHA-256: eda000c049b7017c11bcb388a5eecb49ff2051b32a42f4eeac0de9180f3db675
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to Shopify-hosted PDFs, creating a link farm. One of the primary links directs to 'ttraff.ru', identified as a malicious redirector. The document body contains text related to 'Google sheets functions sum', likely a lure to attract users interested in spreadsheet functions. The presence of a malicious redirector and a link farm suggests an attempt to direct users to malicious content, potentially for phishing or malware distribution.

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=google+sheets+functions+sum
    • http://files.meetonvliet.com/uploads/1/3/0/7/130775539/bekavidofuzuko-gazijelawudovur-dunojadixagoxa-lepugavideso.pdf
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/foluxuworufoginedasipo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/xiliwatadava.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0845/files/womudonuniluwa.pdf
    • https://cdn.shopify.com/s/files/1/0433/3305/8715/files/92720280341.pdf
    • https://cdn.shopify.com/s/files/1/0429/4764/1510/files/47426439512.pdf
    • https://cdn.shopify.com/s/files/1/0431/8609/4248/files/sap_basis_netweaver_administrator.pdf
    • https://cdn.shopify.com/s/files/1/0433/4908/2261/files/mesugamotofowiloxaro.pdf
    • https://cdn.shopify.com/s/files/1/0430/0954/0257/files/sexupu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9544/0040/files/arginina_akg.pdf
    • https://cdn.shopify.com/s/files/1/0437/7785/1543/files/aptenodytes_forsteri.pdf
    • https://cdn.shopify.com/s/files/1/0437/9977/3341/files/brother_printer_drivers_dcp-_t510w.pdf
    • https://cdn.shopify.com/s/files/1/0436/9140/9562/files/80418361863.pdf
    • https://cdn.shopify.com/s/files/1/0431/9910/3136/files/nikumezokaliruzoberazeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/cashflow_ngcobo_book_download.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_off00005d23.bin
6c1f3b19314e7f37324a9bf274f9ccd8d8a70d53df0bc039cb1f233649686c02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D23 5020 bytes
font_01_sfnt_off00006e20.bin
8c4cd2bbf0e543bf0382ca5d420f8c3673ec85e24146c2fa8d12169662995bbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E20 10328 bytes

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