Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9cd230364149adf…

MALICIOUS

PDF

52.1 KB Created: 2020-08-14 21:50:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6eba8ea772f4fbdb193a738edd38fb5f SHA-1: 4ad8b106b1d404a28598d2579cfb53a98de21044 SHA-256: d9cd230364149adf72dc8bd8653b3d7603fe7c0c38de96c771b482585cbed8dd
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to what appears to be a link farm hosted on Shopify. One of the primary links redirects to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=sad+song+status+video++hd', indicating a lure to a potentially malicious site. The presence of numerous links suggests an attempt to distribute malware or phish for credentials through these external resources.

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=sad+song+status+video++hd
    • http://xotadi.gunitsponsorbootcamp.com/uploads/1/3/1/8/131857419/3b6f5e70.pdf
    • http://files.imbusysoareyou.com/uploads/1/3/2/6/132681479/4178697.pdf
    • https://cdn.shopify.com/s/files/1/0437/5393/0901/files/renesas_usb_3._0_driver.pdf
    • https://cdn.shopify.com/s/files/1/0432/8115/4214/files/how_are_you_meaning_in_english_answer.pdf
    • https://cdn.shopify.com/s/files/1/0428/9894/8255/files/medupipiluwugilaxexiw.pdf
    • https://cdn.shopify.com/s/files/1/0430/5672/6165/files/85732169325.pdf
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/vusopiguj.pdf
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/mubovanawisiwujotipipi.pdf
    • https://cdn.shopify.com/s/files/1/0435/0869/5192/files/vufurixidewuzexokataxiga.pdf
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/druid_spell_list_5e.pdf
    • https://cdn.shopify.com/s/files/1/0431/2537/5130/files/71042935208.pdf
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/pofuviwasuwozebinexuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9512/files/aulas_de_frances_gratis_em.pdf
    • https://cdn.shopify.com/s/files/1/0431/6128/8868/files/bmw_320i_2006_performance.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_off00008949.bin
753d3e97ee9785c250be25efcf068d4e9463467ba30f2b7576c32172fe1fb95d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8949 5124 bytes
font_01_sfnt_off00009aae.bin
0bd8e37f6ddb29c5611630a93959cf078d60b1d119a76c424cdc1cc9a598bcc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AAE 13228 bytes

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