PDF malware analysis — malicious · 436b63d9847741bd

MALICIOUS

PDF

46.7 KB Created: 2020-08-12 04:07:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bdb14a53682accd786b7c0a0f5a3f6e2 SHA-1: e51458ee9631a3892e061f628608d24a00e1a72a SHA-256: 436b63d9847741bd8ef5aedae084c298ca8e2966b40d13d98b4a986e3679d3db

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL, https://ttraff.cc/pify?keyword=chronic+prostatitis+symptom+index+pdf, is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains this URL, suggesting a lure to external malicious infrastructure.

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=chronic+prostatitis+symptom+index+pdf
- http://tevupe.neverthirstagain.co.uk/uploads/1/3/2/6/132682883/fagitoxebiti.pdf
- http://beladataj.uniquelearning.ca/uploads/1/3/1/4/131407089/4165113.pdf
- http://files.brittanywoolsey.com/uploads/1/3/1/3/131383943/sidaxanitawijid_juwakobe_vezevodedeje_turebuzasedo.pdf
- https://cdn.shopify.com/s/files/1/0433/5671/7224/files/31942082208.pdf
- https://cdn.shopify.com/s/files/1/0428/7827/1651/files/nomenclature_of_cycloalkenes.pdf
- https://cdn.shopify.com/s/files/1/0435/6240/1947/files/73767774487.pdf
- https://cdn.shopify.com/s/files/1/0428/6801/5260/files/53747218625.pdf
- https://cdn.shopify.com/s/files/1/0432/1381/5966/files/optoelectronics_and_photonics_kasap_solution_manual.pdf
- https://cdn.shopify.com/s/files/1/0438/0740/8290/files/wefojamebuvarazudure.pdf
- https://cdn.shopify.com/s/files/1/0431/5404/7137/files/banavipubugasimipuwegafaj.pdf
- https://cdn.shopify.com/s/files/1/0431/2032/8853/files/similar_triangles_project.pdf
- https://cdn.shopify.com/s/files/1/0428/0378/9991/files/mulukolunumejesu.pdf
- https://cdn.shopify.com/s/files/1/0433/4678/8502/files/74497972348.pdf
- https://cdn.shopify.com/s/files/1/0429/3538/6275/files/gezikesurojir.pdf
- https://cdn.shopify.com/s/files/1/0431/9854/6084/files/tejoj.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
`font_00_sfnt_off000069d1.bin` `0bbf39e907cb4ff91f22fcc7bd3ad51a5aa6d7855a225918e0eee8ea6022c367`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69D1	5344 bytes
`font_01_sfnt_off00007bd0.bin` `81249efdd5a3a62bb1b44214bb57075ba922517017877447748b245ba28b7e97`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BD0	10484 bytes
`font_02_sfnt_off00009f80.bin` `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9F80	4324 bytes

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