Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d563df69c7c6575…

MALICIOUS

PDF

43.6 KB Created: 2020-07-27 19:48:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0487bea727bcb654fb4e69e5f3589691 SHA-1: 3bc1449162b801725e8c4ab8eb00c833473dc193 SHA-256: 2d563df69c7c65754b6b97d7dcaedef545c8c2887428951793146eb4441cdcb6
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=song+waste+my+time+johnny+orlando', is identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and appears to be junk data, suggesting the primary purpose is malicious redirection rather than content delivery.

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=song+waste+my+time+johnny+orlando
    • http://files.realtimecases.org/uploads/1/3/2/6/132695329/padofujujidalezo.pdf
    • http://files.edaumarchitect.com/uploads/1/3/0/9/130969485/nenegus-zejerus-marawudokareb.pdf
    • http://files.429delancy.com/uploads/1/3/1/3/131378950/movew.pdf
    • https://cdn.shopify.com/s/files/1/0430/6780/1749/files/finivuzasukasunomepamuma.pdf
    • https://cdn.shopify.com/s/files/1/0429/9715/3943/files/vogakamuvun.pdf
    • https://cdn.shopify.com/s/files/1/0432/2482/6014/files/korufuvi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7757/4562/files/27177866883.pdf
    • https://cdn.shopify.com/s/files/1/0434/4388/0103/files/vadonivazuzekiwe.pdf
    • https://cdn.shopify.com/s/files/1/0428/5467/8687/files/54169690452.pdf
    • https://cdn.shopify.com/s/files/1/0430/6694/9799/files/35060769614.pdf
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/sidajeredu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2171/3060/files/nuzatotunaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/5209/0022/files/susexojonimupiparekalove.pdf
    • https://cdn.shopify.com/s/files/1/0434/6960/2981/files/lizijafipumiwejilu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4383/1458/files/71807952613.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8011835234.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/
    • https://cdn.shopify.com/s/files

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006de0.bin
41c291a3a9324d9ab3f95df92cd46543d683dcbfc09cf06d2b432f627314c307		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE0 5400 bytes
font_01_sfnt_off00008012.bin
947df10006159085543be742c468b661cdc3f0115eb06b01a8b870779b3a1cd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8012 9632 bytes

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