PDF malware analysis — malicious · 412d6c7d131a9891

MALICIOUS

PDF

45.1 KB Created: 2020-08-18 17:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 05cec75f413dc6f8446c97d5be458cbf SHA-1: 58d678432e3a031c30c0e519902340026018ceca SHA-256: 412d6c7d131a9891a1de171042b0c08c387ba8b6bc9e6351a3012f66aa7e8af9

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF document contains a link farm and a malicious redirector URL, indicating a phishing or social engineering attempt. The primary malicious URL identified is https://ttraff.cc/pify?keyword=wastewater+treatment+plant+design+student+workbook+pdf, which likely leads to a harmful destination. The document body, though heavily obfuscated, contains references to the malicious URL and other benign-looking PDF links, suggesting an attempt to disguise malicious intent.

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.cc/pify?keyword=wastewater+treatment+plant+design+student+workbook+pdf
- http://files.positivegundogsmn.com/uploads/1/3/1/3/131380471/9407882.pdf
- http://files.ktlindemann.com/uploads/1/3/0/7/130740231/bedizib.pdf
- http://files.wileyscience.com/uploads/1/3/1/0/131070799/1772342.pdf
- http://files.epiphanythunderbay.com/uploads/1/3/0/8/130814208/sazuradapozu-zupobit.pdf
- https://cdn.shopify.com/s/files/1/0434/6612/9574/files/82681656048.pdf
- https://cdn.shopify.com/s/files/1/0432/1764/9819/files/26463956132.pdf
- https://cdn.shopify.com/s/files/1/0431/7478/9281/files/fimapatifopabitobarilojin.pdf
- https://cdn.shopify.com/s/files/1/0428/8030/3270/files/fowiwekonosu.pdf
- https://cdn.shopify.com/s/files/1/0434/8333/2773/files/factorizacion_trinomio_cuadrado_perfecto_ejercicios_resueltos.pdf
- https://cdn.shopify.com/s/files/1/0439/8533/8526/files/latex_subfigure_package.pdf
- https://cdn.shopify.com/s/files/1/0436/9108/1882/files/depizezafikujugop.pdf
- https://cdn.shopify.com/s/files/1/0434/7055/3238/files/85378657811.pdf
- https://cdn.shopify.com/s/files/1/0437/8086/6209/files/96995930214.pdf
- https://cdn.shopify.com/s/files/1/0433/2558/7610/files/camino_frances_etappen.pdf
- https://cdn.shopify.com/s/files/1/0432/2266/3331/files/49477895397.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.

Filename	Kind	Source	Size
`stream_005_off00008ad9.bin` `ff3423ea8091bcee10dca8e581881a1f2104a35fbbf824c2304c7397e6b0b6ee`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8AD9	18176 bytes
`font_00_sfnt_off00005551.bin` `ff494561c6ed8a2a972a773e47cf7d28effe3b9ea1fa79278cc8515d13d7c4af`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5551	5672 bytes
`font_01_sfnt_off00006897.bin` `b6babf82acaafb265ff68ad9b98cb2d5ffea8c45ec75d4ed561ce46c3dd4cd54`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6897	10040 bytes

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