Malicious PDF — malware analysis report

Static analysis result for SHA-256 dacf7c9bbaaafc8c…

MALICIOUS

PDF

41.5 KB Created: 2020-08-24 01:21:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 852a206a6a4e926c944bc59386d2f027 SHA-1: 254b88abf7a423926f6757b7a9e50a06e7b8ffba SHA-256: dacf7c9bbaaafc8c6ae7e8a528fa211b6826f5f95b609462bf1f242e0407b983
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to a malicious site. The document also features a large number of embedded links, many pointing to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, but the presence of a malicious redirector and link farm indicates a phishing or malware distribution attempt.

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.ru/pify?keyword=magellan+rx+pipeline+report
    • http://files.slaterfamilylaw.com/uploads/1/3/0/9/130969291/segesozonetoto.pdf
    • http://files.nimatennis.com.au/uploads/1/3/1/6/131606965/4116325.pdf
    • https://cdn.shopify.com/s/files/1/0434/0409/9740/files/xiviserubelebobevexij.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/libidurekatomanazavevufi.pdf
    • https://cdn.shopify.com/s/files/1/0435/7039/7352/files/29176118922.pdf
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/80373638509.pdf
    • https://cdn.shopify.com/s/files/1/0434/1992/6679/files/amrapali_re_dj_song.pdf
    • https://cdn.shopify.com/s/files/1/0435/3831/7464/files/luvutifodotogejasobulen.pdf
    • https://cdn.shopify.com/s/files/1/0428/4832/1692/files/42697854468.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/19129563270.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3097/files/kolile.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_off000063d7.bin
5c397af0dc7afd64baaa3efdcb614b4b3b3d689034acb42f17e0203b756abbe1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63D7 4884 bytes
font_01_sfnt_off00007486.bin
aecd40e7cb985476d922d766243025450cdc51b068a7691d21f908e17ce9cf4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7486 10884 bytes

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