PDF malware analysis — malicious · ea84ee03ecef4c97

MALICIOUS

PDF

209.7 KB Created: 2020-10-02 10:59:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: 6fee58d2e4f2770daaa966dfd261b3ad SHA-1: 913ad3eb4416280e62e4364b2a73b59401c5cc6c SHA-256: ea84ee03ecef4c97719898a178c0f75f5a3b3eb52049d685285b36729fd53194

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is designed to lead users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious. The embedded URL is the primary indicator of malicious intent, likely serving as a lure for further compromise.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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.ru/pify?keyword=change+48+inches+to+feet In PDF document text
- https://site-1037889.mozfiles.com/files/1037889/2930167391.pdfIn PDF document text
- https://site-1037839.mozfiles.com/files/1037839/vurofuzotesezapugi.pdfIn PDF document text
- https://site-1039995.mozfiles.com/files/1039995/33667014146.pdfIn PDF document text
- https://site-1040322.mozfiles.com/files/1040322/burigafef.pdfIn PDF document text
- https://site-1037132.mozfiles.com/files/1037132/80721664863.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/bf3b1886-d358-4e76-8935-3aedde55e149/80546706089.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/514921c9-6a04-4cb0-88f1-571fe0d483bc/pilelakulepazogava.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/38aef3ac-3ddc-4d63-977c-7153d5369dea/51484047604.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/55fccb26-d0db-4a0e-8f72-2f3720311e2c/jixetosuruxadun.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/92fa0b59-716c-49c6-8589-d3801be3bb4e/38425558805.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5f52edb2-e9a4-4044-b1db-b5a37853678d/91364511286.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/94e33a0f-d0d2-439d-8737-8e20c6bc7dbc/5235502889.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/67721e03-aa7c-4629-ab41-70011c7d9cc8/96054571610.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/16038edd-1cfa-470f-8518-bf9f3f088094/pimodotomorapususolirogek.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0002fc1d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FC1D	5200 bytes
SHA-256: `5199abe65432418a6c03ece8c27a91be8b6208011d7838da1746eeaf7e396abc`
`font_01_sfnt_off00030dd5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30DD5	13384 bytes
SHA-256: `91a9b5812a7e68fc13dd4a0f9a130b5f91d0fb9430582dc3ddbd9e9ee8c86d15`

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