Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd81729ffdf974a9…

MALICIOUS

PDF

32.4 KB Created: 2020-08-26 13:18:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f513ee57d06a3af5e77a1a7052e2548 SHA-1: 9060de8e972f138bcb4db7bba45ce1e5cdfa3b13 SHA-256: bd81729ffdf974a999a9f4f8c1b9f6946643c0c896ac7ef94f034e2ab592720c
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=123+free+movies+online'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The document body text also contains the lure '123 free movies online', reinforcing the social engineering aspect. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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=123+free+movies+online
    • http://files.corneliapeckart.com/uploads/1/3/2/7/132712333/xesejumo-jakaxuzenefode-gipaxusaxuf-junaronoje.pdf
    • http://xakig.maldiver.net/uploads/1/3/0/7/130775826/8cf00f80a39c.pdf
    • http://files.jwhitneyart.com/uploads/1/3/2/3/132303151/jixuzizew_zofupefopusut_rujodeg.pdf
    • https://cdn.shopify.com/s/files/1/0438/2556/1757/files/mugudedanagejilovus.pdf
    • https://cdn.shopify.com/s/files/1/0436/8036/6745/files/blood_father_parents_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/2834/9079/files/titorewugi.pdf
    • https://cdn.shopify.com/s/files/1/0436/6663/6953/files/colorbond_fence_sheets_adelaide.pdf
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/83319221941.pdf
    • https://cdn.shopify.com/s/files/1/0427/9926/8003/files/pourquoi_se_brosser_les_dents.pdf
    • https://cdn.shopify.com/s/files/1/0436/0273/9362/files/dolekisurexiwafafu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7804/1244/files/lujetasikakito.pdf
    • https://cdn.shopify.com/s/files/1/0435/2799/5552/files/microbiology_made_rediculously_simple.pdf
    • https://cdn.shopify.com/s/files/1/0429/2742/3654/files/manonevafenalimu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5675/1002/files/sorinifulodiviwiguwo.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_off000044e5.bin
bec40774012b5be2f6965a4383105893dd943e79580666f3f71f4388132f813e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44E5 5016 bytes
font_01_sfnt_off000055e2.bin
75ec4d21f37f1c61be5c37c9cee065d42a162f109dd177e7bd14912a5b778b48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55E2 9200 bytes

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