Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8c8503e27d19f6…

MALICIOUS

PDF

47.9 KB Created: 2020-08-30 00:06:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a97d6d290ec0d3c85924767dae13586 SHA-1: 004d14e92b4c2c80592ca98fde9f3d5a1667b6be SHA-256: aa8c8503e27d19f6fccfb8016b3893b0e7e88b285dea4261f868f3c424b19853
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of external links, a technique often used in SEO spam or phishing campaigns. One of the embedded URLs, https://ttraff.com/wix?keyword=best+terraria+mount, is flagged as a known malicious redirector. The document body contains garbled text along with this URL and other benign-looking PDF links, suggesting an attempt to obscure the malicious intent.

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=best+terraria+mount
    • https://static.usrfiles.com/ugd/88a84f_4dccd721d82c45bf83762bda3f485ffd.pdf
    • https://static.usrfiles.com/ugd/01e791_b6f66ff7e207471b91d1be75514309c2.pdf
    • https://static.usrfiles.com/ugd/8127dd_ca141b1a706447f2a4ad985d374996ec.pdf
    • https://static.usrfiles.com/ugd/b8c837_6010536cacfd48e2856232d05af34177.pdf
    • https://static.usrfiles.com/ugd/b8c837_0c43ab42b40f4f7a892d247be19dfa8a.pdf
    • https://static.usrfiles.com/ugd/b8c837_15844fb1dc5047559324f2132a9ad118.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdf
    • https://cdn.shopify.com/s/files/1/0432/6745/7188/files/dutinajabuxegadetopinuget.pdf
    • https://cdn.shopify.com/s/files/1/0448/1007/6322/files/ranavomobokososerikumomef.pdf
    • https://cdn.shopify.com/s/files/1/0430/7612/4825/files/8445521654.pdf
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/vifujal.pdf
    • https://cdn.shopify.com/s/files/1/0435/8632/2593/files/lunuvemiwero.pdf
    • https://cdn.shopify.com/s/files/1/0444/2708/3943/files/american_dream_full_song.pdf
    • https://cdn.shopify.com/s/files/1/0439/2402/9608/files/7305517236.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071ae.bin
5509d755ab8402c15232c9e0cfb7fb3492d3547148aedcec600a938f27340e19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71AE 4728 bytes
font_01_sfnt_off0000819d.bin
011d507a1943b101de2b6ecf18ea8ccbc490b9cd933511bcb54b7f6c72392547		 pdf-font-stream PDF embedded font (sfnt) at offset 0x819D 10408 bytes
font_02_sfnt_off0000a505.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA505 4324 bytes

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