Malicious PDF — malware analysis report

Static analysis result for SHA-256 2987bef180d29d8e…

MALICIOUS

PDF

45.5 KB Created: 2020-08-08 18:52:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 943bde188f2df08ca66ea40056b06b98 SHA-1: 0d34df16e318a59e4882e5a247a6f0ca83e62a7b SHA-256: 2987bef180d29d8e25cb9153cda879af52bfeed2efa7699975a61adfe9eccc91
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a mass of external links, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Chicago Blackhawks schedule' and the malicious URL. This suggests a lure to trick users into clicking the link, which then redirects to potentially harmful 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=chicago+blackhawks+schedule+2020+20+pdf
    • http://files.authorjdnelson.com/uploads/1/3/0/7/130776167/medulejudovawif-zafowet-kajevixadaju-mosebu.pdf
    • http://files.stsarkis.org/uploads/1/3/1/8/131872015/7064416.pdf
    • http://vosixise.suzukiworkshop.com/uploads/1/3/0/8/130814297/guxiboxadol_rezebuwusafu.pdf
    • http://files.babbagelovelace.com/uploads/1/3/0/8/130813314/5240177.pdf
    • http://files.troutbum.ca/uploads/1/3/2/7/132710655/046c6686a.pdf
    • https://cdn.shopify.com/s/files/1/0434/7772/9442/files/rokok.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/wojokinirepe.pdf
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/napezenuzoxut.pdf
    • https://cdn.shopify.com/s/files/1/0433/7857/3464/files/sugizuxemiluxibano.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/80935812563.pdf
    • https://cdn.shopify.com/s/files/1/0428/6863/7862/files/ferikokedexawor.pdf
    • https://cdn.shopify.com/s/files/1/0433/2208/1448/files/dureveb.pdf
    • https://cdn.shopify.com/s/files/1/0440/2210/4222/files/90513276637.pdf
    • https://cdn.shopify.com/s/files/1/0431/7885/2507/files/xajifogiliwojeb.pdf
    • https://cdn.shopify.com/s/files/1/0433/2063/9646/files/xipesegewifobike.pdf
    • https://cdn.shopify.com/s/files/1/0429/4492/1766/files/98312557730.pdf
    • https://cdn.shopify.com/s/files/1/0430/0144/6554/files/rigomapalafiviti.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_off00006bee.bin
a686af963d1b1d1deaada584582cce0fbabd9fe946d9c23632ba35d8a1c58924		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEE 5796 bytes
font_01_sfnt_off00007fba.bin
81a0c9fa7c9055f5328fc259d0bada61adc1b9a712140e8cb74dcb95bf62cf27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBA 13044 bytes

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