Malicious PDF — malware analysis report

Static analysis result for SHA-256 3709371fcc45dcfc…

MALICIOUS

PDF

45.3 KB Created: 2020-08-02 19:22:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9e2928e711a359432639f1982fec625 SHA-1: cee0a36094b7897d64c6c9ba6e0222ef2d435689 SHA-256: 3709371fcc45dcfc1a8a092b02d433542d23e5ce4ffcdf8be50aa37afffc3697
150 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, contains text related to 'Minecraft pe seeds' and the redirector URL also contains a similar keyword, suggesting a lure to attract users interested in this topic. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, limiting the analysis of specific execution behaviors.

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.com/pify?keyword=minecraft+pe+seeds+0.+13.+0
    • http://files.lyndziecherry.co/uploads/1/3/1/4/131407968/8896782.pdf
    • http://files.caronairbase.com/uploads/1/3/1/4/131406248/4071286.pdf
    • http://files.goodwin-niering.com/uploads/1/3/1/3/131398128/rujop_xebixefogerom_burexulutu.pdf
    • http://files.eimearmullan.com/uploads/1/3/0/7/130738969/xolixeweju-dozota-tedepusixoxeji.pdf
    • http://files.dungannontrinitychurch.com/uploads/1/3/0/8/130874265/funelilomufar-mezinu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4245/5195/files/18599644192.pdf
    • https://cdn.shopify.com/s/files/1/0431/4248/0021/files/gekonokekopefitaril.pdf
    • https://cdn.shopify.com/s/files/1/0430/6622/8898/files/brother_project_runway.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tebagomi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2451/5229/files/96445241642.pdf
    • https://cdn.shopify.com/s/files/1/0431/2878/3002/files/verutuseli.pdf
    • https://cdn.shopify.com/s/files/1/0428/6955/5356/files/54658825622.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8007882555.pdf
    • https://cdn.shopify.com/s/files/1/0435/6577/7059/files/62757127825.pdf
    • https://cdn.shopify.com/s/files/1/0431/1570/8580/files/92039155436.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/tawaparavifebugakano.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/23583362425.pdf
    • https://cdn.shopify.com/s/files/1/0433/5871/6054/files/wamiw.pdf
    • https://cdn.shopify.com/s/files/1/0434/7743/4525/files/68465825180.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_off000065c0.bin
9320b9c0d4661b9f6f38129dea0b91b0a98b66d735b8f50db6d606cfabed007b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65C0 5512 bytes
font_01_sfnt_off0000789b.bin
4868153f5200892d8b9aa9611a808359786363d700a53a2c7677fa04903726c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x789B 2248 bytes
font_02_sfnt_off000082f0.bin
2c6f9c86e43ef873cbed7e615bf16e7ca36f4c4da2bd4a52a047b0a5ee236c31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82F0 10772 bytes

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