Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce7ea0e4f0a8c9b4…

MALICIOUS

PDF

38.6 KB Created: 2020-08-10 13:18:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 773e94459d344e67721418990ed45ed0 SHA-1: 4eeef33846077832ea09723712a785de9d90fce5 SHA-256: ce7ea0e4f0a8c9b495a65bc762f85e62ee9a404de11ac333f79799b9b797747f
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm, with many links pointing to shopify.com domains, suggesting an attempt to obscure the true destination or spread content. The document body contains garbled text but includes the same redirector URL, reinforcing its malicious nature. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=c%25E1%25BA%25AFt+file+pdf+b%25E1%25BA%25B1ng+foxit
    • http://dilekenid.jasonfaulstich.com/uploads/1/3/1/6/131636612/fd4d63341ee.pdf
    • http://bugupe.cedarcreekcorgis.com/uploads/1/3/1/3/131384169/9268190.pdf
    • http://nakimesu.beautyescapades.com/uploads/1/3/2/3/132302780/gufibepedigapor.pdf
    • http://files.jaredjaggers.com/uploads/1/3/1/4/131453111/susezotuwimut_vanela_babokejite.pdf
    • https://cdn.shopify.com/s/files/1/0429/5032/8486/files/icici_bank_balance_sheet_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2305/files/gibufazifupure.pdf
    • https://cdn.shopify.com/s/files/1/0435/8779/7160/files/15631279835.pdf
    • https://cdn.shopify.com/s/files/1/0433/6356/5718/files/borulepisinejaresekolo.pdf
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/bolijijujitu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0228/1633/files/32547951.pdf
    • https://cdn.shopify.com/s/files/1/0436/4248/6934/files/sofuduzipopeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dekafarisajanitid.pdf
    • https://cdn.shopify.com/s/files/1/0435/5624/1557/files/21813163706.pdf
    • https://cdn.shopify.com/s/files/1/0437/6569/4613/files/jafosasexivop.pdf
    • https://cdn.shopify.com/s/files/1/0433/8289/8840/files/butefutoxarofatasebav.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_off000058c7.bin
65f2f8471aaca6879af52bf9d2e063a789172362b8020db35354d968d10fe4c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x58C7 5416 bytes
font_01_sfnt_off00006a79.bin
cb60e78c61aae936c682c518d16e08d3a89ec6aebf61017b566565550065f0d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A79 9792 bytes