Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec0f3e79d6809352…

MALICIOUS

PDF

40.0 KB Created: 2020-08-22 05:48:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8baa054aeb202949d59019b7433d5e01 SHA-1: d0f3d81b6e62fecfaa458a0ef546b559efd6d25f SHA-256: ec0f3e79d6809352931a60604dcf929d1f374f9194c9c8154d19c646850b161e
120 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 'https://ttraff.com/pify?keyword=format+json+chrome+plugin'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the same redirector URL. The primary intent appears to be directing users to malicious infrastructure via a deceptive 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.com/pify?keyword=format+json+chrome+plugin
    • http://files.cgcpoems.shop/uploads/1/3/2/7/132740307/5461417.pdf
    • http://files.mitchgerber.com/uploads/1/3/2/6/132681698/xoxozixixorewo.pdf
    • https://cdn.shopify.com/s/files/1/0438/8447/8632/files/91995436952.pdf
    • https://cdn.shopify.com/s/files/1/0434/3277/1734/files/medical_genetics_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rowogumidakedodovejizana.pdf
    • https://cdn.shopify.com/s/files/1/0429/3728/6812/files/14497858398.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/23607686804.pdf
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/zuledavatazoletofubeke.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9041/files/62236963987.pdf
    • https://cdn.shopify.com/s/files/1/0437/6900/4190/files/50838776449.pdf
    • https://cdn.shopify.com/s/files/1/0437/6798/8376/files/tamil_books_online_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/8549/6482/files/56617372284.pdf
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/bartender_basic_2016.pdf
    • https://cdn.shopify.com/s/files/1/0437/4816/3738/files/35561093895.pdf
    • https://cdn.shopify.com/s/files/1/0436/2590/6336/files/bunty_babli_movie_song.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_off00006001.bin
e49528df916e277ae899d970f18c839facf737d132f45d9f4af4fc7b0d38cd01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6001 5380 bytes
font_01_sfnt_off0000721e.bin
c5f8eaf88854275c1d42d40a0ed5ae499d6538d50d80002ac41524ea2fc01a69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x721E 9680 bytes

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