Malicious PDF — malware analysis report

Static analysis result for SHA-256 07bc967290701fae…

MALICIOUS

PDF

43.9 KB Created: 2020-11-01 15:43:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29c754445b0f94ccf72660a650982ee7 SHA-1: d6df178646d2e6c12fc8de0bd6d27bb443d71078 SHA-256: 07bc967290701fae6579201c1afa94da8312ac28b0c9e1bbee9f95b2881af066
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to known malicious redirector infrastructure, suggesting a phishing or scam attempt. The document body, though obfuscated, contains URLs that are likely part of a link farm designed to manipulate search engine results or direct users to malicious sites. No scripts were extracted from this sample.

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://cctraff.ru/strik?keyword=skinning+leveling+guide+wow
    • https://cdn-cms.f-static.net/uploads/4401546/normal_5f9a4f0f747a0.pdf
    • https://defonufagij.weebly.com/uploads/1/3/4/3/134360363/nuzotiwa_safebafojepizas.pdf
    • https://cdn-cms.f-static.net/uploads/4403563/normal_5f9d58e359294.pdf
    • https://cdn-cms.f-static.net/uploads/4374860/normal_5f8c3e5285698.pdf
    • https://cdn-cms.f-static.net/uploads/4379030/normal_5f8b143ac4021.pdf
    • https://worozimovazez.weebly.com/uploads/1/3/1/4/131406108/40205.pdf
    • https://cdn-cms.f-static.net/uploads/4393893/normal_5f902e81dc00c.pdf
    • https://cdn-cms.f-static.net/uploads/4370270/normal_5f8ee69917c93.pdf
    • https://cdn-cms.f-static.net/uploads/4406514/normal_5f9da77181030.pdf
    • https://cdn-cms.f-static.net/uploads/4379363/normal_5f9bb3b0cba75.pdf
    • https://cdn-cms.f-static.net/uploads/4369502/normal_5f93761ebef90.pdf
    • https://zavebunerug.weebly.com/uploads/1/3/4/3/134358754/nuxipubapajok_subafawubunurit_kupati_tagenixet.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0507/9570/8610/files/wexotewapuxalebawilis.pdf
    • https://s3.amazonaws.com/xotorulu/gajigi.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.

FilenameKindSourceSize
font_00_sfnt_off00006bf6.bin
81cbbc36ad7735d7eb41f568178b2d1a71b5c90dcb1a4240a7f70d05c343e9fa
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF6 4828 bytes
font_01_sfnt_off00007c91.bin
ff330167dc3da0e7e37298d0b1e18e997c754c9c41f8abf1a6f9b5a2b87d4b04
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C91 11208 bytes