Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa9c3ceb1464052e…

MALICIOUS

PDF

43.2 KB Created: 2020-09-01 21:11:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82fd8d664a16a2a00453a8e44da98f9a SHA-1: f52996869354c92de1330468aa81676e7e74eb9a SHA-256: aa9c3ceb1464052e6f779c4348ca57aaad357b65ff6a28876e0b462b5de88d53
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=electrode+placement+guide+video', suggesting a lure to a malicious site disguised as a guide. No scripts were extracted from this sample.

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=electrode+placement+guide+video
    • https://cdn.shopify.com/s/files/1/0431/4536/3610/files/wadojewiwemigaratolaxox.pdf
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/31262059841.pdf
    • https://cdn.shopify.com/s/files/1/0427/9602/3975/files/45501997697.pdf
    • https://cdn.shopify.com/s/files/1/0428/5821/7631/files/76754606599.pdf
    • https://cdn.shopify.com/s/files/1/0460/1289/1297/files/radugefabuso.pdf
    • https://static.usrfiles.com/ugd/b8c837_b72dee6326534a7fa73e2601425d7c25.pdf
    • https://static.usrfiles.com/ugd/9b7d8a_d3ccc4cb4fcd4eb282d8a2d79be3ce4d.pdf
    • https://cdn.shopify.com/s/files/1/0436/4405/9806/files/radojimanolukapibo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/zilujuzexizilevus.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9028/files/mp_cabinet_ministers_list_2020_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0434/2772/5474/files/jaxodovozixonuj.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_off000069d2.bin
4818e01300ebaa8182acb23e35c08f759de12dd75226f291e92b9457cd990f8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69D2 5232 bytes
font_01_sfnt_off00007b95.bin
34cd14761f24eb3248da11a86a7c0882633f2b583aeb9947491a7f010867082d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B95 10316 bytes

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