Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee9683f24f4f05d0…

MALICIOUS

PDF

45.1 KB Created: 2020-08-04 06:51:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c63d7f6d71c014f78cf85f953ba78e0 SHA-1: 3e7cd3052dd6d61f9979317548a5a55959d6ed79 SHA-256: ee9683f24f4f05d01cb0f176bc6ebd271abc995f8c2532f4abe64e688bafa9e1
120 Risk Score

Malware Insights

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

The PDF document contains numerous links, including one to a known malicious redirector at `ttraff.com`. The document body text, though garbled, suggests a lure related to 'blacksmith lessons pdf'. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to attract search engine traffic and potentially distribute malware. The primary malicious URL is `https://ttraff.com/pify?keyword=blacksmith+lessons+pdf`.

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.com/pify?keyword=blacksmith+lessons+pdf
    • http://files.treasuremeworld.com/uploads/1/3/1/4/131407465/2002191.pdf
    • http://files.nenevalleydragons.org/uploads/1/3/0/8/130874523/degavazufadedune.pdf
    • http://files.bamyield.org/uploads/1/3/0/9/130969430/saromo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3907/2161/files/lobab.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6384338271.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kufotiniponekurek.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2791/files/public_financial_management_reform.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/74954037238.pdf
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/54919636590.pdf
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/pexejoziwapidorole.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/gedivejebazimodexirujol.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/7806151601.pdf
    • https://cdn.shopify.com/s/files/1/0430/0213/4681/files/zoxozuliji.pdf
    • https://cdn.shopify.com/s/files/1/0428/3518/1724/files/walowuvugudikunavetewaje.pdf
    • https://cdn.shopify.com/s/files/1/0428/8764/3303/files/410_shotguns_prices.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/zimogowununefadi.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_off000065f1.bin
9e1f78aff21d15c2d6e0143c288f0e2afd1780f5b9c010c80a27323b703fbf55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65F1 5412 bytes
font_01_sfnt_off00007839.bin
0b0cd996df5560223e086b53d54991a12c991544ac3f631e313b86491d200f6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7839 15380 bytes

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