Malicious PDF — malware analysis report

Static analysis result for SHA-256 842fc3514019f46a…

MALICIOUS

PDF

45.4 KB Created: 2020-08-12 06:54:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ac96992fa2d47c2e9ef01e7af1baa2dd SHA-1: c22eb56ce6cb331df1d75ca8f43031073bf6cb20 SHA-256: 842fc3514019f46a99b22a8b5f24c66a89be15c2c61a657ffa3eb7cb23008429
150 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, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and keywords suggesting a lure. The presence of numerous other links, many hosted on 'cdn.shopify.com', indicates a link farm strategy, likely to obscure the malicious destination. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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/wb?keyword=inspirational%20graduation%20speech%20pdf
    • http://todekate.whisperwindaussies.com/uploads/1/3/0/9/130969862/6177889.pdf
    • http://noburiv.astridweversphotography.com/uploads/1/3/2/7/132712358/4986741.pdf
    • http://files.wangmoney.biz/uploads/1/3/1/3/131398334/3e662942f6a5e0f.pdf
    • https://cdn.shopify.com/s/files/1/0430/2051/7537/files/65202742227.pdf
    • https://cdn.shopify.com/s/files/1/0432/9524/4441/files/what_is_polarity_in_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0429/9200/9365/files/81139104565.pdf
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/daxatotemutebo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3495/9259/files/lg_chiller.pdf
    • https://cdn.shopify.com/s/files/1/0434/1514/2567/files/63179361318.pdf
    • https://cdn.shopify.com/s/files/1/0437/4344/5141/files/the_emerald_tablets_of_thoth_the_atlantean_doreal.pdf
    • https://cdn.shopify.com/s/files/1/0437/6156/5850/files/6939611879.pdf
    • https://cdn.shopify.com/s/files/1/0434/2277/7496/files/alzheimer_tratamiento_psicologico_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0430/8205/5842/files/42401299402.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/arrancame_la_vida_libro_completo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0737/7567/files/senisetatiwutonuvokewaj.pdf
    • https://cdn.shopify.com/s/files/1/0428/0382/2755/files/semelavirisapotopol.pdf
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/zagagovitisiwe.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_off00006647.bin
5c79014e23520120a12e8a00f9e036d4edddebb1c5e35f398544e84f7357a9f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6647 5236 bytes
font_01_sfnt_off00007803.bin
2b40bd2f2e109c427d34c168bc3a45de15a301134beff0fef87e45a4aa08a9a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7803 10088 bytes
font_02_sfnt_off00009a8e.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A8E 4324 bytes