Malicious PDF — malware analysis report

Static analysis result for SHA-256 643dae3064300107…

MALICIOUS

PDF

39.2 KB Created: 2020-08-29 21:12:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9673b5d291a9a00d369f480bde8a72b7 SHA-1: 20cbe6a117247219cc200fac52c349f05b6131ba SHA-256: 643dae306430010701b0616eec72cd1d18dd5c5b5e3d1f2326347c999ae3fd4b
154 Risk Score

Malware Insights

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

The PDF document contains a link farm and a redirector URL, indicating a phishing or scam attempt. The embedded content, though obfuscated, includes the primary malicious URL, suggesting the document's purpose is to redirect users to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.

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.me/wix?keyword=atauzem+s%25C4%25B1nav+sorular%25C4%25B1+ve+cevaplar%25C4%25B1
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_4653aad5158948bca635b0a5e4627b5e.pdf
    • https://static.usrfiles.com/ugd/b8c837_dc4e1d3c30f24c46a999aafbd0482c6e.pdf
    • https://static.usrfiles.com/ugd/b8c837_075b78366e3b4df1ba4a09d674a30a43.pdf
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/4573812250.pdf
    • https://cdn.shopify.com/s/files/1/0434/6662/1094/files/ladoruvode.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdf
    • https://cdn.shopify.com/s/files/1/0432/8023/6702/files/37645124068.pdf
    • https://cdn.shopify.com/s/files/1/0431/0790/9794/files/kimavodadibuxobawup.pdf
    • https://cdn.shopify.com/s/files/1/0430/1045/7753/files/48573833289.pdf
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/87455566843.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/3209435593.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_off000055e6.bin
eb12e8e107c261db3c9f74368bbb5ef7d91d1dbbea83ef6d1ac6d85aaf489bd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55E6 5212 bytes
font_01_sfnt_off00006797.bin
101a99905529db8b8105c3ea1270e67d858eee6a2e460b9811b5083ea59c58f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6797 12744 bytes

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