Malicious PDF — malware analysis report

Static analysis result for SHA-256 baee7f91fea71f03…

MALICIOUS

PDF

51.4 KB Created: 2020-08-06 05:37:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06b4389f5b4d5b3ef03f2a68cb967f1e SHA-1: b722699bbb020937dae74d04294f215890f2dc8a SHA-256: baee7f91fea71f038089a0e54c858b9ac8efc040c4c492ba756d87475df9fc84
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The primary malicious link identified is https://ttraff.com/pify?keyword=cabala+draconiana+pdf, which likely serves as a lure to a phishing or malware distribution site. The document body is heavily obfuscated and contains what appears to be a reconstructed URL, further supporting the malicious intent.

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.com/pify?keyword=cabala+draconiana+pdf
    • http://melejo.pm-extreme.com/uploads/1/3/1/6/131636655/mipisi-venexud-sipudamosilij.pdf
    • http://files.fundyregiontransitionhouse.com/uploads/1/3/2/3/132302819/6113370.pdf
    • http://files.pandorascollective.com/uploads/1/3/0/7/130739007/lemifim.pdf
    • http://wexele.cctshippingframes.com/uploads/1/3/1/3/131384635/soneduserukopabamuze.pdf
    • https://cdn.shopify.com/s/files/1/0432/1338/9992/files/on_directing_film_david_mamet.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4240/files/91814387593.pdf
    • https://cdn.shopify.com/s/files/1/0438/3549/0461/files/wejatisumetazed.pdf
    • https://cdn.shopify.com/s/files/1/0431/4628/1120/files/salamanders_codex_supplement.pdf
    • https://cdn.shopify.com/s/files/1/0432/2318/7616/files/adepta_sororitas_codex_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/sulaletibebonitun.pdf
    • https://cdn.shopify.com/s/files/1/0431/0119/2352/files/ronozadabaxakopululel.pdf
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/dowifesapezexujobus.pdf
    • https://cdn.shopify.com/s/files/1/0436/4291/2926/files/57646490635.pdf
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/vector_calculus_sixth_edition.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008035.bin
8feac550498f96bfc8bdd4c5a2bbd20b16503b08637fc1872814c55697a9f70d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8035 5016 bytes
font_01_sfnt_off0000914a.bin
527a88c8514572387f8f8b7bfdb20c5fbe96e1bac847691a9d70451d1893ea8d
pdf-font-stream PDF embedded font (sfnt) at offset 0x914A 15636 bytes