Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc38fb16b50eb16c…

MALICIOUS

PDF

40.1 KB Created: 2020-09-08 12:54:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5673e7eb8ddb5a922333cb191f8e21b0 SHA-1: 68c3b581d085a94406013b8eab6e81a6a1f6eb4a SHA-256: cc38fb16b50eb16cd11a391cf4674be7cb41d84a67f083f7d30a0fa71fa119ea
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a mass of external links, with one critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains the text 'Sky movie family tv guide' and the malicious redirector URL, suggesting a lure. The primary attack pattern involves tricking the user into clicking the malicious link, which is identified as 'https://ttraff.link/wix?keyword=sky+movie+family+tv+guide'. This link is likely used for phishing or to initiate a malware download.

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.link/wix?keyword=sky+movie+family+tv+guide
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.pdf
    • https://cdn.shopify.com/s/files/1/0436/9999/4789/files/iphone_to_android_audio_adapter.pdf
    • https://cdn.shopify.com/s/files/1/0433/8008/0801/files/frankfurt_eating_guide.pdf
    • https://static.usrfiles.com/ugd/5899d5_cd57ce58f746496baa8fe01deaf33c28.pdf
    • https://static.usrfiles.com/ugd/8da65f_8feb2bb9ccd54ca18c7f8649fb9a8cb8.pdf
    • https://static.usrfiles.com/ugd/b4bf80_340259fe80634f9387429ac5aa84c26b.pdf
    • https://static.usrfiles.com/ugd/740d8c_39c773135fdf4a8595b8c7879e4df814.pdf
    • https://cdn.shopify.com/s/files/1/0430/2091/0746/files/89951992437.pdf
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/sazemajiwefejar.pdf
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/kovusadi.pdf
    • https://static.usrfiles.com/ugd/717a42_c99c0ddac3f447c8a64fa4294b83a442.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f9da9d239c04b9490fcdb421235720b.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_off00005e95.bin
b02b7275d3273be9810d375cf070cdc8e1a1f721ddf951ad785855a1ab84e97d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E95 5280 bytes
font_01_sfnt_off00007095.bin
c6d289e64ac65a5bf25b6d3d069ac8cd61ebd6707383d7dd5781fac1c4b173c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7095 10392 bytes

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