Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5697c5e1309c111…

MALICIOUS

PDF

69.2 KB Created: 2020-09-01 02:53:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f68bd0c6ff99f553ddf5760b8172233 SHA-1: 3dee1cac18e90e89945c923757e6615d89aa4675 SHA-256: e5697c5e1309c111c3625511d520242adff3b1d1c7db47cfe4a29f4c89d1e18b
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to a malicious redirector, specifically `https://ttraff.ru/wix?keyword=xsplit+gamecaster+crack`. Additionally, it hosts a large number of other PDF files, likely as part of a link farm to improve search engine ranking for cracked software. The document body also contains the same lure text and URLs, reinforcing the malicious intent.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/wix?keyword=xsplit+gamecaster+crack
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/xatubegafupoboruru.pdf
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/somariwunutovaponafuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/8555/3059/files/lulinerobi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2195/9325/files/akuntansi_perbankan_syariah.pdf
    • https://cdn.shopify.com/s/files/1/0434/1596/1762/files/91494709197.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/94999974736.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34007074416.pdf
    • https://static.usrfiles.com/ugd/99a8f2_6319205a50f54c63b69ce17f570347ba.pdf
    • https://static.usrfiles.com/ugd/26481d_d690bff2828647c78d6a3b72a228483c.pdf
    • https://cdn.shopify.com/s/files/1/0431/7505/1415/files/virosifojet.pdf
    • https://cdn.shopify.com/s/files/1/0437/5488/1185/files/resident_evil_4_gamecube_rom.pdf
    • https://cdn.shopify.com/s/files/1/0429/6550/0060/files/biology_class_9_10.pdf
    • https://cdn.shopify.com/s/files/1/0430/5358/0439/files/82699353207.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_off0000bf0c.bin
430e9fc424a8884c68d6c6ddbeeafb219e4b67c2fa476cc05cca3c141db081da		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF0C 5292 bytes
font_01_sfnt_off0000d0f9.bin
c70a471df17fd60bfb99bddafffe07cca69243d6cfb3d95821ec8de05e1e558f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD0F9 19788 bytes

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