Malicious PDF — malware analysis report

Static analysis result for SHA-256 98888417e4b4dc5d…

MALICIOUS

PDF

47.4 KB Created: 2020-08-31 09:43:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e7c46002d2d59e749da5cc9849072ab SHA-1: 01a567f2bb8d789824517b3b09396bc81db881c0 SHA-256: 98888417e4b4dc5dfb1f4d0e871c902505c9770f889c3402ea7e8834b343dafe
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=tamriel+rebuilt+data'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with a significant portion hosted on Shopify. The document body, though heavily obfuscated, contains the same suspicious URL. The presence of urgency language further supports a phishing or social engineering attempt.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=tamriel+rebuilt+data
    • https://static.usrfiles.com/ugd/b8c837_e63ed30d3bb74fc4b721a7fc51224914.pdf
    • https://static.usrfiles.com/ugd/80c1db_605e9b9d752d4a659de345911624e233.pdf
    • https://static.usrfiles.com/ugd/b4f0c6_bb63836ff8de495db5910611cd73e881.pdf
    • https://cdn.shopify.com/s/files/1/0433/7795/0881/files/20357504523.pdf
    • https://cdn.shopify.com/s/files/1/0439/8533/8526/files/golden_sun_djinn_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/2212/1122/files/ragineporemufameluviriwiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/ps3_controller_linux.pdf
    • https://cdn.shopify.com/s/files/1/0437/3017/4113/files/kali_linux_sources._list.pdf
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/6025473771.pdf
    • https://cdn.shopify.com/s/files/1/0460/7937/7572/files/4031324292.pdf
    • https://cdn.shopify.com/s/files/1/0435/1361/0392/files/xivitizosur.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071b7.bin
a6b6bd6c747b0f420e0d79ad636ef15df86559e1968fb495acbd3131b3975e74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71B7 4548 bytes
font_01_sfnt_off00008117.bin
972d770957cb811d418b66ab8002db5f2e0cc5303fc75a679b8611472a4b5f8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8117 9956 bytes
font_02_sfnt_off0000a33a.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA33A 4324 bytes

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