PDF malware analysis — malicious · 0a5edeab9b3d65e5

MALICIOUS

PDF

46.5 KB Created: 2020-08-24 10:56:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7be0589050598f49698944dc2a3d31ef SHA-1: a861a2d02a12d090e8f112057da9959d34e2d1c6 SHA-256: 0a5edeab9b3d65e5687c62bd9d91fe640f0892ab7c7852692470e1ae2502c092

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One prominent link, 'https://ttraff.cc/pify?keyword=belarus+state+university+of+informatics+and+radioelectronics', is identified as a malicious redirector. This suggests the document is designed to lead users to potentially harmful websites, possibly for phishing or malware distribution, under the guise of academic resources.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
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.cc/pify?keyword=belarus+state+university+of+informatics+and+radioelectronics
- http://files.reemslovenia.com/uploads/1/3/1/3/131398174/kosivi-fumijigepivupi-kekugekeje-siradatej.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/0564/8807/files/pdf_ebook_reader_application.pdf
- https://cdn.shopify.com/s/files/1/0434/8693/7253/files/64893476514.pdf
- https://cdn.shopify.com/s/files/1/0431/5188/4449/files/guzateginu.pdf
- https://cdn.shopify.com/s/files/1/0436/9996/2024/files/tipaxozat.pdf
- https://cdn.shopify.com/s/files/1/0435/5552/0667/files/maparilojun.pdf
- https://cdn.shopify.com/s/files/1/0454/7251/4206/files/61611161513.pdf
- https://cdn.shopify.com/s/files/1/0462/3902/3253/files/sekabimasesowu.pdf
- https://cdn.shopify.com/s/files/1/0434/3303/3877/files/68867080504.pdf
- https://cdn.shopify.com/s/files/1/0439/3802/1531/files/muwufe.pdf
- https://cdn.shopify.com/s/files/1/0428/2669/4822/files/86762556015.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007633.bin` `ef64117162323370a7f364ce7ee330531d309001850822257fb698a6606e4195`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7633	5380 bytes
`font_01_sfnt_off0000886f.bin` `0a8f710ed888ca8f83c677dda7293023f4943ea1b1bcc6b668c4f92f755ba45b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x886F	10744 bytes

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