Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed95badbc647d31d…

MALICIOUS

PDF

43.8 KB Created: 2020-09-03 04:26:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 068da38246fd6d16bd4bf70046e311aa SHA-1: df027e6672d63ab58781af514f65d79367e635e8 SHA-256: ed95badbc647d31d15eeeddef086b5a2b920fafe36eaa7e125045197ca868ca4
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation to increase visibility of the malicious link. The ML classifier strongly supports the malicious verdict.

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/wix?keyword=employee+statement+template
    • https://static.usrfiles.com/ugd/fac845_011f682f8b934fbd92e48f8dce7d2b1e.pdf
    • https://static.usrfiles.com/ugd/b8c837_40c5fd9c944a481ea9dd43ed29ba0cb3.pdf
    • https://static.usrfiles.com/ugd/7a11b0_99708a23b79c482f9ca83c8f819acda0.pdf
    • https://static.usrfiles.com/ugd/8a05ec_2b927d5b07764d1c84bd1e98f28a4c28.pdf
    • https://static.usrfiles.com/ugd/3b47cb_7906a9da57d9475e994932d3589b43a9.pdf
    • https://cdn.shopify.com/s/files/1/0449/5418/9983/files/bahubali_telugu_movie_hd_1080p.pdf
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/80156020879.pdf
    • https://cdn.shopify.com/s/files/1/0434/1468/3813/files/34288992591.pdf
    • https://cdn.shopify.com/s/files/1/0436/2931/4206/files/58859948000.pdf
    • https://cdn.shopify.com/s/files/1/0429/5720/9753/files/common_english_words_used_in_daily_life_with_malayalam_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0431/5847/0816/files/words_words_words_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0433/8404/5719/files/great_fairy_fountain_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0434/6527/7605/files/78148660000.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_off00006f9a.bin
ec41c1a2c7d11e9e23191adbab21246f3d79cf1e71dbfed6d279d63147ef42d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9A 4928 bytes
font_01_sfnt_off00008056.bin
68ab8f4a3a7d3f64092831fb5bd5a60399ec43097745a4a9ce50fe799d556a46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8056 10012 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.