Malicious PDF — malware analysis report

Static analysis result for SHA-256 e43dc2dbff973318…

MALICIOUS

PDF

46.1 KB Created: 2020-08-21 21:09:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fcce62f824a9250649e14b994b0ef270 SHA-1: 5538f930f85281a068fbe53e48552daf35e0f0dd SHA-256: e43dc2dbff973318c239f4da3162516ba7a2b8bb86dc4ab5c1f767430a0eb187
160 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains the URL and appears to be a lure for an advance-fee scam, as indicated by the SE_ADVANCE_FEE_SCAM_LURE heuristic. The PDF also hosts a link farm on Shopify, likely to improve search engine ranking for the scam content.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=whatsapp+for+bluestacks+app+player
    • http://mewebes.csroyalty.com/uploads/1/3/2/6/132680835/17a1f94.pdf
    • http://files.livinglightwellness.com/uploads/1/3/2/6/132681482/wulikonis-puruxogoruz-nafem.pdf
    • https://cdn.shopi
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/tikoxipudado.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fejekav.pdf
    • https://cdn.shopify.com/s/files/1/0433/9279/4773/files/gatoxanoludoxuweregu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9209/0784/files/disgaea_2_dark_assembly_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/86542245085.pdf
    • https://cdn.shopify.com/s/files/1/0432/7328/9888/files/56036701377.pdf
    • https://cdn.shopify.com/s/files/1/0432/7548/5339/files/59790413260.pdf
    • https://cdn.shopify.com/s/files/1/0437/5989/4680/files/36908238149.pdf
    • https://cdn.shopify.com/s/files/1/0431/2478/5313/files/40322729566.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/muxugomategejuro.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_off0000756b.bin
b8b4a362b1d1fb60b276d0050b0e84332fd94af3c8eefb48fb4d92e930a63cfd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x756B 5420 bytes
font_01_sfnt_off000087ea.bin
5553fc7ea82e6857701388d6fc89eb9d64cde4c546d012381cbdb910dd931a26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87EA 10356 bytes

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