Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b0e040d9e66a7ac…

MALICIOUS

PDF

45.0 KB Created: 2020-08-12 05:07:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 457b6e9261beaa26f2ce794eccbab811 SHA-1: a6ab68ff40e9523597ba30edb1e620ffda54e659 SHA-256: 3b0e040d9e66a7acdca862d95b4634b719bc745b4e82b7bf15341fab993739e2
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and a secondary URL hosted on 'cdn.shopify.com'. This suggests the primary intent is to redirect the user to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, limiting the analysis of direct payload execution.

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/wb?keyword=europe%20physical%20map%20worksheet
    • http://files.livekidstheater.com/uploads/1/3/0/7/130776249/8928016.pdf
    • http://dunuj.bigbitedumpsterrental.com/uploads/1/3/2/6/132681352/limitupazuni-novaso-vewanebakejoror.pdf
    • http://files.drcortal.com/uploads/1/3/1/4/131437044/3208200.pdf
    • http://nelux.inspirationoftime.com/uploads/1/3/0/8/130874012/xirepugoxum_xanorimi_rovovu_josupor.pdf
    • https://cdn.shopify.com/s/files/1/0429/1520/1191/files/xejuzafeko.pdf
    • https://cdn.shopify.com/s/files/1/0435/7678/7103/files/gustavo_adolfo_becquer_biografia.pdf
    • https://cdn.shopify.com/s/files/1/0433/2797/9678/files/pathway_bronkopneumonia_pada_anak.pdf
    • https://cdn.shopify.com/s/files/1/0431/7623/1063/files/92114535743.pdf
    • https://cdn.shopify.com/s/files/1/0437/5203/0357/files/resijetal.pdf
    • https://cdn.shopify.com/s/files/1/0431/3235/4727/files/93979211921.pdf
    • https://cdn.shopify.com/s/files/1/0434/1730/5240/files/sydney_opera_house_architecture.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8428/files/65231135616.pdf
    • https://cdn.shopify.com/s/files/1/0438/1887/7085/files/azitromicina_500_bula.pdf
    • https://cdn.shopify.com/s/files/1/0435/6875/8943/files/76717189773.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70745323757.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_off000070d2.bin
0ad67a6a74b95cac3bbfcb490fab1cf9121ddb98c39a5eafa7e136278378e904		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70D2 5388 bytes
font_01_sfnt_off00008322.bin
2e0caaff604d8e30931c9991412d294ac8888b07d6686b8938503fb6ff8331ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8322 10496 bytes

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