PDF malware analysis — malicious · 296d47a357c72792

MALICIOUS

PDF

43.6 KB Created: 2020-08-31 02:22:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c4830f06012daef77d28f99294480e08 SHA-1: ad21023ad10bb545ca1ba70bb2b2c572efa5c0d5 SHA-256: 296d47a357c72792a9686fb0a88bb474ea249be1eb4427ab319c6794351daf4e

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=best+injustice+2+characters'. This URL is likely used to redirect the user to a malicious site. The document also contains a PDF link farm heuristic, indicating it's designed to host numerous external links, many of which point to Shopify domains. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious redirector URL is sufficient evidence of a phishing or redirection attack.

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/wix?keyword=best+injustice+2+characters
- https://static.usrfiles.com/ugd/1d64af_9ebe1eeb42e64f7bb8e75eef50c9682c.pdf
- https://static.usrfiles.com/ugd/b47706_7ac57efbcf3743498b550599d3a45f2b.pdf
- https://static.usrfiles.com/ugd/2b25b5_47cf970ed0fa42f486abc61daff8234e.pdf
- https://cdn.shopify.com/s/files/1/0431/4093/9933/files/certificate_border_design_template.pdf
- https://cdn.shopify.com/s/files/1/0465/2865/9614/files/molimunitagude.pdf
- https://cdn.shopify.com/s/files/1/0450/2283/8934/files/mumadowaweriv.pdf
- https://cdn.shopify.com/s/files/1/0436/2990/4032/files/blueprint_book_nicholas_christakis_download.pdf
- https://cdn.shopify.com/s/files/1/0437/8863/2213/files/blessed_daniel_caesar_piano_sheet_music.pdf
- https://cdn.shopify.com/s/files/1/0431/4991/8374/files/android_software_names_list.pdf
- https://cdn.shopify.com/s/files/1/0464/7609/9752/files/nizozupodopijewelufuwexi.pdf
- https://static.usrfiles.com/ugd/2f8cea_a857f172095842abb0c5a5993e3d5902.pdf
- https://static.usrfiles.com/ugd/b8c837_fb3f081d440445e785ead5b9b7aed636.pdf
- https://static.usrfiles.com/ugd/1d64af_2d2d23b5f39c484bb9143c41b922b088.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_off00006082.bin` `a0585eaa3f59f3bc972aa802832d2242461f2d2558db8bdfb1b9e519702d0322`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6082	4884 bytes
`font_01_sfnt_off0000710c.bin` `bd999531821c7004b1c2f32b7c81a1e19b83b7d6283eee2ba3f991347ff5d091`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x710C	10188 bytes
`font_02_sfnt_off0000939d.bin` `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x939D	4324 bytes

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