Malicious PDF — malware analysis report

Static analysis result for SHA-256 c38967a327e53d76…

MALICIOUS

PDF

50.2 KB Created: 2020-08-01 14:42:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c52dff7d1e9875f7d14f03acf9bf0ec SHA-1: 5b7c67e04abbef3d83e9849d9efe46ec442df12e SHA-256: c38967a327e53d76f4226bca6207512cef4bfeb27f621e7b043de03659d33703
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of external links, suggesting an SEO poisoning or link farm attack. The primary malicious URL identified is https://ttraff.com/pify?keyword=vampire+hunter+d+1985, which likely serves as a redirector to further malicious content. The document body contains garbled text along with the identified malicious URL and several benign Shopify URLs, indicating a potential attempt to disguise the malicious intent.

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=vampire+hunter+d+1985
    • http://files.santenkarate.com/uploads/1/3/1/0/131070722/xogid.pdf
    • http://files.sollysummersoccercamp.com/uploads/1/3/0/7/130739616/2273242e0f28fe.pdf
    • http://files.laurenkorshakmft.com/uploads/1/3/1/3/131380651/kodadu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0911/3240/files/bezilazow.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/58068170967.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4665/files/9988291088.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8359/files/33300843551.pdf
    • https://cdn.shopify.com/s/files/1/0437/8938/5888/files/german_shepherd_training_books.pdf
    • https://cdn.shopify.com/s/files/1/0434/2539/8945/files/peter_f_drucker_management.pdf
    • https://cdn.shopify.com/s/files/1/0437/6539/9713/files/telojujevufoja.pdf
    • https://cdn.shopify.com/s/files/1/0428/0382/2755/files/85693389681.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/kugakezawovunuzotig.pdf
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/94088563316.pdf
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/48829027935.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/fadonikolilizi.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000695b.bin
fada5db60050558cfd9c90c6d65beea930fc7b874222d23593895d37e537a349		 pdf-font-stream PDF embedded font (sfnt) at offset 0x695B 3956 bytes
font_01_sfnt_off0000776a.bin
9c76594af7a3884919bb6c393432202b418d5d53e17dff6de039343dc000121b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x776A 5252 bytes
font_02_sfnt_off00008923.bin
da35c9f165489670e0a704e2b198f387588a75a52b767f5b3d5623dafb301cc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8923 10120 bytes
font_03_sfnt_off0000abbf.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABBF 4324 bytes

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