Malicious PDF — malware analysis report

Static analysis result for SHA-256 e187d7884541fa11…

MALICIOUS

PDF

50.8 KB Created: 2020-08-02 07:12:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f834d6dea1ff151162546d17241c8e4 SHA-1: d352420286ecf09aafbdda13d4709df853d7be44 SHA-256: e187d7884541fa1182d38a0aace3127e707d1043b022079f2c3dd4f5906e6fd1
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=naanum+rowdydhaan+songs', which is flagged as malicious. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, likely for SEO manipulation or to host further malicious content.

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=naanum+rowdydhaan+songs
    • http://files.thoughtfulhen.com/uploads/1/3/2/8/132814166/7722132.pdf
    • http://files.naomiandco.com/uploads/1/3/1/4/131438847/d9111e2d0f.pdf
    • http://files.gwrrautahhome.org/uploads/1/3/1/6/131637839/zexixe-fogudevele-xuriwida.pdf
    • http://files.regionfiveadulted.com/uploads/1/3/1/3/131380641/tomivapaguzovix_levuzupito_tibunimebex.pdf
    • http://files.architecture-walks-and-talks.net/uploads/1/3/2/7/132740633/676393.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/92787176176.pdf
    • https://cdn.shopify.com/s/files/1/0431/0827/0244/files/88637100613.pdf
    • https://cdn.shopify.com/s/files/1/0436/5074/4478/files/lojorabuwusul.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2831/files/sizoxivebuma.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/zovegelizidufudixiwab.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/646255477.pdf
    • https://cdn.shopify.com/s/files/1/0431/5345/7320/files/87643244018.pdf
    • https://cdn.shopify.com/s/files/1/0431/1079/3382/files/78441552659.pdf
    • https://cdn.shopify.com/s/files/1/0431/3785/9735/files/zoronor.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7362/files/power_electronics_hart.pdf
    • https://cdn.shopify.com/s/files/1/0434/4463/3756/files/21098063719.pdf
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/42864145228.pdf
    • https://cdn.shopify.com/s/files/1/0432/9691/5616/files/vibepitoduseb.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/pofufuxumikunavibes.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_off000071c6.bin
4503ebe746d995109f992fa3edcfcf41623e43e7ebc1b64e6ee720bc47cbd8bd
pdf-font-stream PDF embedded font (sfnt) at offset 0x71C6 5368 bytes
font_01_sfnt_off000083fa.bin
bf1b1d6c909fa616ad4c24455cdc031bc09cb218e579bb0984c0db3bba0a4eaf
pdf-font-stream PDF embedded font (sfnt) at offset 0x83FA 7952 bytes
font_02_sfnt_off00009adf.bin
183e30c6eb1bf2f6e41629d0dcb97ce3aa8ec7317812a32b4249a8dbbd08e20c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9ADF 10248 bytes