Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa0846588e3f012e…

MALICIOUS

PDF

46.6 KB Created: 2020-07-30 19:11:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f5e8e4420a5644cc09c3ea03aa0dd8b SHA-1: 3a78ba83d9fb770e7a8c260f030d94fa0972669c SHA-256: fa0846588e3f012e3dbb90c96bd3dfbd61ffcb147ff2d1447138532fb3c351aa
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector. Another critical heuristic identified a link farm, suggesting an attempt to manipulate search engine results or distribute content across multiple sites. The primary malicious URL identified is ttraff.cc, which is used in conjunction with a keyword suggesting a datasheet lure.

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.cc/pify?keyword=datasheet+arduino+nano+pdf
    • http://files.catherine-coolidge.com/uploads/1/3/0/8/130874582/0fef77372964d.pdf
    • http://files.melrosechristianschoolhouse.com/uploads/1/3/1/4/131454151/3979623.pdf
    • http://files.musicaextrema.nl/uploads/1/3/1/8/131856860/f87ad5c88.pdf
    • http://files.barbarawirthart.com/uploads/1/3/1/4/131453007/xepakekeg.pdf
    • https://cdn.shopify.com/s/files/1/0434/4007/9005/files/gelasafenopinomoxatozol.pdf
    • https://cdn.shopify.com/s/files/1/0434/7353/5142/files/xanel.pdf
    • https://cdn.shopify.com/s/files/1/0433/9751/3381/files/90954948267.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/gapovoj.pdf
    • https://cdn.shopify.com/s/files/1/0438/8565/8280/files/wagivenefipoladij.pdf
    • https://cdn.shopify.com/s/files/1/0435/3720/3364/files/16258703311.pdf
    • https://cdn.shopify.com/s/files/1/0431/5178/6135/files/muzasedaxubakanopiwurotus.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejukimuvili.pdf
    • https://cdn.shopify.com/s/files/1/0430/7622/3129/files/junoluz.pdf
    • https://cdn.shopify.com/s/files/1/0434/8366/0441/files/78947357703.pdf
    • https://cdn.shopify.com/s/files/1/0432/3799/8754/files/78713515983.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.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_off00007a38.bin
69d908e67d569521fabb483968b087e51781d7a1780fb7779fb1020022decab0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A38 4980 bytes
font_01_sfnt_off00008b1b.bin
8ad1a57be41851a0c0bf4ad2bddc38517323832deb9f7827bbe565f39a706074		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B1B 9940 bytes

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