Malicious PDF — malware analysis report

Static analysis result for SHA-256 8199f3044047553d…

MALICIOUS

PDF

41.8 KB Created: 2020-08-22 00:38:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5dae4c476dee5bd608d2e96e7a25f9fd SHA-1: e6ac497f626641d13e62cf59be53b539d78377e0 SHA-256: 8199f3044047553d64ab6f02071dbe93f155a998285113e48bc794371af67747
120 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 'https://ttraff.com/pify?keyword=iron+on+blackletter+font+free'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify-hosted PDFs. The primary intent appears to be SEO manipulation or redirecting users to potentially malicious content via the ttraff.com domain.

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=iron+on+blackletter+font+free
    • http://polorik.charliesblackpudding.com/uploads/1/3/0/7/130775432/67a3f27226b82.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2043/files/5173825114.pdf
    • https://cdn.shopify.com/s/files/1/0434/7658/2552/files/oracle_forms_java_license.pdf
    • https://cdn.shopify.com/s/files/1/0431/5542/3383/files/46922572383.pdf
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/jaspersoft_reporting_tool_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/32600198463.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/carrion_crown_player_s_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/5507/1900/files/streaming_platforms_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0431/3186/3202/files/ccna_sample_questions.pdf
    • https://cdn.shopify.com/s/files/1/0431/7829/5450/files/tudazerafobulofidulo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6694/9786/files/58475676272.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005112.bin
784b686534f8b491a7ff656660327375b33678eb2e1273958c2c7e25d95b816d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5112 4836 bytes
font_01_sfnt_off0000618f.bin
10c31d89950db360d31d0226827d65977737206b5b2dce36fe283c9b6ed47f73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x618F 10464 bytes
font_02_sfnt_off000085b3.bin
ff88491e9b53368aa3a30e8dd34a5b3a2a650623abbadb69eae8d512e7150c33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85B3 16084 bytes

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