Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4193a818668ccca…

MALICIOUS

PDF

47.8 KB Created: 2020-08-19 04:14:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5babbf0b7d44e35df4823d6ded7b6de7 SHA-1: a9c6d97f944bc76266189ffefa360420759e341f SHA-256: b4193a818668cccac17db825155386357b367e102340713b0b7acaaf4e6a12c5
128 Risk Score

Malware Insights

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

The PDF contains a mass of external links, masquerading as a marketing plan template, with a prominent call-to-action. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=sample+marketing+plan+template+excel', is a known malicious redirector. The document likely aims to trick users into clicking the link to download a malicious payload or visit a phishing site.

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.cc/pify?keyword=sample+marketing+plan+template+excel
    • http://files.sanmarcoscamp.com/uploads/1/3/1/4/131483955/denoladu-japodoxetu-waxogugaxabi.pdf
    • http://files.milton-trails.com/uploads/1/3/1/3/131398085/rodigun-wumajo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/basic_geometrical_construction.pdf
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/learn_sql_tutorials_point.pdf
    • https://cdn.shopify.com/s/files/1/0432/0519/7985/files/fufetemulaloga.pdf
    • https://cdn.shopify.com/s/files/1/0430/5348/2135/files/associations_incorporation_act_nsw_forms.pdf
    • https://cdn.shopify.com/s/files/1/0429/4279/1839/files/97867490966.pdf
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/19637064730.pdf
    • https://cdn.shopify.com/s/files/1/0428/6909/6615/files/guvuvanodera.pdf
    • https://cdn.shopify.com/s/files/1/0435/0273/1430/files/91180180304.pdf
    • https://cdn.shopify.com/s/files/1/0437/3990/6197/files/sinapulegibubex.pdf
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/atenas_y_esparta.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_off00007e7d.bin
90a50f12e7d2ee8072e9aea04a3110900aa1b8d0d32f025db962c7241f579c73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E7D 5308 bytes
font_01_sfnt_off00009078.bin
b40eb98f071a9ea04df1036e959cda84b4b684d8db357cde2eec2283e981fac5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9078 9972 bytes

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