Malicious PDF — malware analysis report

Static analysis result for SHA-256 517b9380d6b43189…

MALICIOUS

PDF

42.6 KB Created: 2020-08-22 11:45:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ee6caad5d0038d96106fee8117c58e68 SHA-1: 8b86a0691c09e26d730c52f485cb9b7cc9cbe7d7 SHA-256: 517b9380d6b43189b25b44ead89d53eb988b96478f0f66934642c74bb8f3d161
142 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.ru', which is a known malicious infrastructure. Additionally, it features a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt. The document body also contains a callback phishing lure, indicating a potential social engineering tactic to trick users into calling a fraudulent support number.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=cra+representative+authorized+form+business
    • http://gojoto.sporkbooks.com/uploads/1/3/2/6/132681862/fatoriw-zasorokiw.pdf
    • http://xawepur.shandsschool.org/uploads/1/3/0/7/130776819/6fec18fe19ca.pdf
    • http://vedopu.bernardfraga.com/uploads/1/3/2/6/132681579/kuvusulibitisiw_salurerowox_kupubasevi_noditi.pdf
    • https://cdn.shopify.com/s/files/1/0437/7578/7162/files/80496266864.pdf
    • https://cdn.shopify.com/s/files/1/0460/3651/7028/files/camscanner_for_pc_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/9726/0192/files/puzodoludexavalo.pdf
    • https://cdn.shopify.com/s/files/1/0433/2965/0856/files/working_capital_analysis_excel_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/8202/3061/files/stretching_bob_anderson.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6041/files/desozefifu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/4109309590.pdf
    • https://cdn.shopify.com/s/files/1/0430/7540/3929/files/demopolis_alabama_arrest_reports.pdf
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/gifizidajir.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8360/files/96053468706.pdf
    • https://cdn.shopify.com/s/files/1/0430/4096/4759/files/ovulation_calendar_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/7244/4823/files/gezebiwawe.pdf
    • https://cdn.shopify.com/s/files/1/0430/4162/0119/files/tableau_priodique.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_off00006808.bin
5f0f9881d3dd51ae79eba7f458c3fde8e1be633e97c9beac0df5a3afd14a2aeb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6808 5404 bytes
font_01_sfnt_off00007a43.bin
eac5dac5c098f02d478706097caf783ee7b8b78fdbd689c677d24ce23591f55b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A43 10164 bytes