Malicious PDF — malware analysis report

Static analysis result for SHA-256 59691ee1efb2ebb3…

MALICIOUS

PDF

43.3 KB Created: 2020-08-22 20:46:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 063d55f217ddd69f9cc0a6a9e09dde82 SHA-1: 47b64fd5e954ea991f85926d9adc6837ab54b18e SHA-256: 59691ee1efb2ebb3f1e57e00dc9b6e4c66b22e5239ca3a8cd92834bf03b10239
150 Risk Score

Malware Insights

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

The PDF contains a deceptive document body and numerous embedded links. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the primary link redirects to malicious infrastructure, specifically 'https://ttraff.cc/pify?keyword=amenaza+de+aborto+definicion+pdf'. The PDF_SEO_LINK_FARM heuristic reveals a large number of external PDF links, many hosted on cdn.shopify.com, suggesting a link farm designed to distribute malicious content or improve SEO for malicious sites. No scripts were extracted from this sample.

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.cc/pify?keyword=amenaza+de+aborto+definicion+pdf
    • http://danox.martinsvillesoapworks.com/uploads/1/3/2/7/132740185/0f21c.pdf
    • http://wabevime.heatherferrari.net/uploads/1/3/2/6/132681670/650376.pdf
    • http://lemizufon.celestejohnsonlpc.com/uploads/1/3/0/9/130969264/79f2606c.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/44970544970.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/ritirumafun.pdf
    • https://cdn.shopify.com/s/files/1/0436/4982/6969/files/wikabevinub.pdf
    • https://cdn.shopify.com/s/files/1/0431/1279/2221/files/pafaboweni.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/fejumaporodogekaxamuge.pdf
    • https://cdn.shopify.com/s/files/1/0435/4818/0634/files/gubeguwivubilolijilag.pdf
    • https://cdn.shopify.com/s/files/1/0432/8525/0216/files/70077602703.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99914628395.pdf
    • https://cdn.shopify.com/s/files/1/0437/3420/4568/files/22507025648.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/myo_inositol_vs_metformin.pdf
    • https://cdn.shopify.com/s/files/1/0439/6027/1006/files/bwv_998_prelude.pdf
    • https://cdn.shopify.com/s/files/1/0433/5792/9622/files/tokazewogel.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_off00006874.bin
465664b760ec58342925e5a4cbe340519065b5887e8bece57ac30ad576e091ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6874 5268 bytes
font_01_sfnt_off00007a48.bin
11d46b9fcc4c7e012639d98531bfed42687481f75f6642deaa586cff6ab0c8c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A48 11100 bytes

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