Malicious PDF — malware analysis report

Static analysis result for SHA-256 b00ce4c03840cb09…

MALICIOUS

PDF

33.0 KB Created: 2020-08-16 20:38:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc9a3b882ccb27a1d770e472db36cbc9 SHA-1: 45a76bfdf757dea704f7802945c122254805477f SHA-256: b00ce4c03840cb0900c653c91a327126c62f658baee7f139e8c7da899970fff4
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, many pointing to Shopify-hosted PDFs, but one critical link redirects to a known malicious domain, ttraff.com. This suggests a phishing or redirection attempt, likely to deliver a second-stage payload or lead the user to a malicious site. The document body, though heavily obfuscated, contains the text 'present simple verb to be test pdf' and the malicious URL, reinforcing the phishing lure.

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=present+simple+verb+to+be+test+pdf
    • http://files.micheleduncanking.com/uploads/1/3/1/6/131607635/88422797.pdf
    • http://files.riveroflifetoday.org/uploads/1/3/2/6/132681210/9528795.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/werenelopesafewu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5327/7603/files/wugigom.pdf
    • https://cdn.shopify.com/s/files/1/0430/9463/8749/files/38430011943.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/pinabipejaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/5280/1943/files/zomezisek.pdf
    • https://cdn.shopify.com/s/files/1/0430/6350/9143/files/98729104167.pdf
    • https://cdn.shopify.com/s/files/1/0433/1339/7924/files/67346184148.pdf
    • https://cdn.shopify.com/s/files/1/0435/9625/1304/files/zaxuweliduzijotomet.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_off000043f2.bin
e56c069f0bef3592308be32187bd68722181a77e9316015b044f7c173cb9eb23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43F2 5176 bytes
font_01_sfnt_off0000556f.bin
3472c19dc696b931c5fa29b9e4c083a0b80b153b48caf8c4d745a1996e03d28e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x556F 9968 bytes

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