Malicious PDF — malware analysis report

Static analysis result for SHA-256 9118d40666f543d1…

MALICIOUS

PDF

59.4 KB Created: 2020-08-25 10:39:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f456c397cdf22a732b826127c0687a3 SHA-1: 004ba84fc33513dd3082e04a641f571817f88a78 SHA-256: 9118d40666f543d1ffaeeb7acc70d2e97028f298d85710f57276a794d3fc9090
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same lure text as the redirector URL, suggesting a phishing attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=looksmax+guide+lookism
    • http://vujuku.mvfsilverton.com/uploads/1/3/1/6/131606490/rinuk.pdf
    • http://jafusaxi.southwoldholiday.com/uploads/1/3/1/8/131871390/737e1cc65a006.pdf
    • http://files.rosmanith-mclean.com/uploads/1/3/1/6/131606169/rozikoxozoxol.pdf
    • https://cdn.shopify.com/s/files/1/0439/5194/7931/files/java_code_file_from_server.pdf
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/86748622659.pdf
    • https://cdn.shopify.com/s/files/1/0438/1478/1085/files/63348330923.pdf
    • https://cdn.shopify.com/s/files/1/0428/3976/9254/files/79294133084.pdf
    • https://cdn.shopify.com/s/files/1/0432/6667/0745/files/jiladudigatuzi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/45072490945.pdf
    • https://cdn.shopify.com/s/files/1/0434/6878/3773/files/19734121007.pdf
    • https://cdn.shopify.com/s/files/1/0435/1809/9615/files/dupuwamugefofuwos.pdf
    • https://cdn.shopify.com/s/files/1/0434/3486/8897/files/86655228589.pdf
    • https://cdn.shopify.com/s/files/1/0430/9221/3911/files/antimony_msds.pdf
    • https://cdn.shopify.com/s/files/1/0436/0847/3763/files/speak_english_like_an_american_amy_gillett.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/
    • https://cdn.shopify.com

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000942b.bin
5794e27b36b14e98e81cc7866e0489390a4e5200d03fe6b1270eb82c6edbe5b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x942B 5124 bytes
font_01_sfnt_off0000a593.bin
d7278bfcdba23484d885273dee23036971e137143b67bf24bc3a5e925983ab2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA593 10916 bytes
font_02_sfnt_off0000cb27.bin
5f4709fe43ba94fbaee4a0030b36a38a9279278718ec6e4c647891603f676a3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB27 16088 bytes

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