Malicious PDF — malware analysis report

Static analysis result for SHA-256 218ceab9e00e31e9…

MALICIOUS

PDF

76.1 KB Created: 2020-08-06 14:29:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73c9fb34d3f5f204544e4e4d4543ea01 SHA-1: 5251435e2d103068e9b13d175ffaf3fdb1a9f13d SHA-256: 218ceab9e00e31e95279b808b55f450a774b0a6a1033145aad717ec5bae79d32
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector infrastructure (ttraff.com). The document body, though heavily obfuscated, contains text related to 'Oxigenoterapia neonatal pdf' and includes the malicious URL. The presence of a link farm and urgency lures suggests a phishing or scam attempt designed to redirect users to malicious 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.
  • 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.com/pify?keyword=oxigenoterapia+neonatal+pdf
    • http://files.lesleyasare.com/uploads/1/3/0/9/130969059/949440a428a078d.pdf
    • http://files.valordnorwegianelkhounds.com/uploads/1/3/0/7/130739444/7171999.pdf
    • http://files.themoveablechurch.org/uploads/1/3/0/8/130874128/9175303.pdf
    • https://cdn.shopify.com/s/files/1/0431/4939/4080/files/pedizopazipugilelorag.pdf
    • https://cdn.shopify.com/s/files/1/0429/7284/0090/files/keredowowut.pdf
    • https://cdn.shopify.com/s/files/1/0431/7125/0333/files/kabotajiji.pdf
    • https://cdn.shopify.com/s/files/1/0433/9659/5861/files/64845437530.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tutokufumetuja.pdf
    • https://cdn.shopify.com/s/files/1/0432/7863/1072/files/18039754409.pdf
    • https://cdn.shopify.com/s/files/1/0435/2511/1967/files/97096664631.pdf
    • https://cdn.shopify.com/s/files/1/0434/0744/2072/files/gradle_is_not_recognized.pdf
    • https://cdn.shopify.com/s/files/1/0435/8461/8653/files/40844875458.pdf
    • https://cdn.shopify.com/s/files/1/0432/3688/4642/files/88721752252.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27622062760.pdf
    • https://cdn.shopify.com/s/files/1/0433/0841/7192/files/craftsman_41a4315-_7d_manual.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_off0000ee23.bin
a30991843c364488e9347010adb7e0cd028fdbc802bd721af3a63567c5c80dd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE23 5128 bytes
font_01_sfnt_off0000ffab.bin
ab12c5441f8fd4c49cd793721d6aeee743ba93a96ecb535cc9a8e81a714ad45f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFAB 10376 bytes

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