PDF malware analysis — malicious · 80b16af3fc01ef2b

MALICIOUS

PDF

47.3 KB Created: 2020-09-01 21:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a66cba73c5addf4597d3ba4bca9cbe67 SHA-1: 656225e849ce36f5ff5eff22d2633c7d386e44a7 SHA-256: 80b16af3fc01ef2bf08dd0416d14664dc4723905f3347fb7fe6839a39bbebabb

150 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 'https://ttraff.com/wix?keyword=tabela+simples+nacional+2019+comercio+pdf'. Additionally, another critical heuristic indicates a PDF link farm, suggesting an attempt to manipulate search engine results or distribute multiple malicious links. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the redirection attempt.

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.com/wix?keyword=tabela+simples+nacional+2019+comercio+pdf
- https://cdn.shopify.com/s/files/1/0427/8052/4710/files/85231177908.pdf
- https://cdn.shopify.com/s/files/1/0430/6914/5241/files/94883422807.pdf
- https://cdn.shopify.com/s/files/1/0428/3822/9158/files/48937464727.pdf
- https://cdn.shopify.com/s/files/1/0437/0428/7383/files/all_eyez_on_me_movie_soundtrack.pdf
- https://static.usrfiles.com/ugd/a2c2bc_85bb5958424a4bed90e71a5e076c11ff.pdf
- https://static.usrfiles.com/ugd/24853a_76f46a44d6794d619bb067ce9308f271.pdf
- https://static.usrfiles.com/ugd/0c41e7_294c223bb59a4bb49200ebde16a9bf74.pdf
- https://static.usrfiles.com/ugd/b8c837_b1b6dd5e34a34c318935621fec93e880.pdf
- https://static.usrfiles.com/ugd/e5a943_280adfbd93294dd6b54bdd4c039ce2b2.pdf
- https://static.usrfiles.com/ugd/fd7405_9cde3d9c79a243afb8929dfdfe84ee83.pdf
- https://static.usrfiles.com/ugd/b8c837_44bc25ebe84f4a8eac3bcbcab4eb8051.pdf
- https://static.usrfiles.com/ugd/b8c837_fa3fa47637e54e7f874f5f0f9805d6ec.pdf
- https://static.usrfiles.com/ugd/fdee49_e77cf62b77e94cad9140124fa99badaa.pdf
- https://cdn.shopify.com/s/files/1/0437/2067/1384/files/fufadas.pdf
- https://cdn.shopify.com/s/files/1/0437/6412/1752/files/14398455075.pdf
- https://cdn.shopify.com/s/files/1/0434/8303/7860/files/vesofap.pdf
- https://cdn.shopify.com/s/files/1/0430/9080/4885/files/69299129657.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006a64.bin` `286f65ffda78e43342d0d01a49314864508208371dfedd069144f41d341c9e0e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A64	5872 bytes
`font_01_sfnt_off00007e44.bin` `d4c46b6705c4c118c08e19fbea1443993531b39d23cf62d6ce309d4ed6df01e7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E44	16760 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.