Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d61e299c72ca818…

MALICIOUS

PDF

60.3 KB Created: 2020-08-05 18:26:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47106a45b1470716e6f21d7026823c3a SHA-1: 0252e2fec745f1fdfa46a5c7ff74fc9c91817732 SHA-256: 4d61e299c72ca8181c3656499b3673c7469957149c0afc33950d998c816d2995
120 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 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary intent appears to be redirecting the user to malicious infrastructure.

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=aluminium+composite+panel+manufacturing+process+pdf
    • http://files.essenceofgracearomatherapycenter.com/uploads/1/3/1/3/131382387/tibuvosuvutu.pdf
    • http://files.mi-sheffield.com/uploads/1/3/0/7/130739524/5972632.pdf
    • http://files.tsahia.com/uploads/1/3/0/7/130740196/c6dba19d1643462.pdf
    • http://bowuz.realestatewithdrew.com/uploads/1/3/1/4/131482853/wivaxinenog.pdf
    • https://cdn.shopify.com/s/files/1/0435/0764/6630/files/bamiduzojem.pdf
    • https://cdn.shopify.com/s/files/1/0436/0214/9539/files/feduse.pdf
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/70851064862.pdf
    • https://cdn.shopify.com/s/files/1/0440/8731/2536/files/98117269912.pdf
    • https://cdn.shopify.com/s/files/1/0438/6878/2757/files/alimentos_con_fibra_soluble.pdf
    • https://cdn.shopify.com/s/files/1/0435/9690/6659/files/apostrophe_for_possession_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/4367/5560/files/xenunopojalogozukopo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7918/8118/files/donen.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/3959/6454/files/bavofir.pdf
    • https://cdn.shopify.com/s/files/1/0432/5018/8443/files/59131565363.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_off000097b9.bin
451d5f5fdd7e10bc500ba296a0ac500e09f02364501932b14d00ae31e7dcfaab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97B9 3132 bytes
font_01_sfnt_off0000a2f6.bin
63e5688906e132151b8da91b1341c3700a2293019898db47335b89272a6b7fe9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2F6 5464 bytes
font_02_sfnt_off0000b577.bin
7b9835e78702d4e926532fec887dc5a0d7677c3ac799fb69dd34ff40ce71cb56		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB577 14536 bytes

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