Malicious PDF — malware analysis report

Static analysis result for SHA-256 307e22280c233a96…

MALICIOUS

PDF

52.3 KB Created: 2020-08-21 00:25:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bfa02fbf582c70f345b188c9153adb52 SHA-1: f97aa909573a47a3a9d7714d26c35afd933b7ceb SHA-256: 307e22280c233a962076e6d89a8151e83fea4b6ea2aeac2cc707067fb668937e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=megequip+customer+details+listening+answers'. This URL is likely used to redirect the user to a malicious site for phishing or malware delivery. The document body, though heavily obfuscated, contains text fragments and URLs that suggest a lure related to customer details or forms. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm strategy to obscure the ultimate destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=megequip+customer+details+listening+answers
    • http://getol.catherinedanielfitness.com/uploads/1/3/0/8/130874388/gexivumodarafagufap.pdf
    • http://files.brandonreedsounddesign.com/uploads/1/3/1/1/131164202/tugipumitivi.pdf
    • http://files.briannaholt.com/uploads/1/3/1/3/131384583/jotelinitegexe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/11028510921.pdf
    • https://cdn.shopify.com/s/files/1/0434/6285/2773/files/31184718815.pdf
    • https://cdn.shopify.com/s/files/1/0446/7402/3577/files/html_code_for_admission_form_of_college.pdf
    • https://cdn.shopify.com/s/files/1/0434/3663/8369/files/1682608311.pdf
    • https://cdn.shopify.com/s/files/1/0434/5374/3270/files/understanding_the_bias_variance_tradeoff.pdf
    • https://cdn.shopify.com/s/files/1/0430/5344/9367/files/jio_store_whatsapp_app_jio_phone.pdf
    • https://cdn.shopify.com/s/files/1/0432/9386/8187/files/atma_vidya_vilasam_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6035/3429/files/sonic_rush_rom.pdf
    • https://cdn.shopify.com/s/files/1/0430/9460/5975/files/30305380142.pdf
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/gimuzubuze.pdf
    • https://cdn.shopify.com/s/files/1/0431/4995/1138/files/segodofefup.pdf
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/kolarilamitakugefujaxe.pdf
    • https://cdn.shopify.com/s/files/1/0434/6055/9013/files/solucion_hipertonica.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_off00008b3a.bin
95f1d9b26d6e2e468cbf094523e29bca91b6487334d2659d58986fd257e40783
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3A 5616 bytes
font_01_sfnt_off00009e49.bin
891f157b2ca2daad316b446610b32df45d9b366ede7f8d01ff27055a92666880
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E49 10588 bytes