Malicious PDF — malware analysis report

Static analysis result for SHA-256 cff17e9f6d78047e…

MALICIOUS

PDF

42.6 KB Created: 2020-08-19 11:01:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 947b51fcbf05b342896d30e514a2c07d SHA-1: 6bc99460468bc0511240ce55d0cae7e1a7d5caf0 SHA-256: cff17e9f6d78047ee69b636c7bd19f69012829aadfbc5c594b77c9210dfa4d39
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to traff.com, suggesting a link farm or phishing lure. The document body, though heavily obfuscated, contains the target URL and appears to be generated by wkhtmltopdf, a tool often used to create malicious PDFs. The primary intent is to redirect the user to malicious infrastructure.

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=serotonin+pathway+pdf
    • http://dejibize.bendavies-philosophy.com/uploads/1/3/1/4/131406717/wevilofa.pdf
    • http://files.thefashionanalyst.com/uploads/1/3/1/3/131383624/wezunawe.pdf
    • https://cdn.shopify.com/s/files/1/0440/3865/2069/files/93087807296.pdf
    • https://cdn.shopify.com/s/files/1/0429/5009/9107/files/54801870746.pdf
    • https://cdn.shopify.com/s/files/1/0428/5582/5567/files/lupefijobiviledikilog.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19227598733.pdf
    • https://cdn.shopify.com/s/files/1/0429/6481/1935/files/88895871191.pdf
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/20961691848.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/90425802113.pdf
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/nixomavufunufopog.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/mekolafikukadaleloz.pdf
    • https://cdn.shopify.com/s/files/1/0428/7509/3159/files/xijutedexuwokixi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/abortus_usu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5569/3470/files/lakedalef.pdf
    • https://cdn.shopify.com/s/files/1/0440/7151/8373/files/96651335388.pdf
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/bootstrap_transition_js.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_off0000686a.bin
286759ca85153d7fc14dee1264be673048931d57f6976b195d33d4981c3d2474		 pdf-font-stream PDF embedded font (sfnt) at offset 0x686A 5216 bytes
font_01_sfnt_off00007a32.bin
10a55974df77d4297c67a23812fd661e211c791b383181bb89e018192f867743		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A32 10240 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.