Malicious PDF — malware analysis report

Static analysis result for SHA-256 3155fa707aa65e63…

MALICIOUS

PDF

45.4 KB Created: 2020-08-15 12:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0046b2b87a430fa7d2a7ce467ff55f40 SHA-1: 49cf91fd15ed57a2d5236e774a184f3218939de2 SHA-256: 3155fa707aa65e63db0e88a6623b3b743bfee19c206d55beaf80d2478edd7eb6
150 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.com/wb?keyword=cbse%20class%2010%20science%20guide%20pdf'. The document body, though heavily obfuscated, appears to reference educational material ('Cbse class 10 science guide pdf'), suggesting a lure to entice users to click the malicious link. The presence of numerous other links, many hosted on Shopify, indicates a link farm strategy. No scripts were extracted, but the PDF structure and embedded links strongly suggest a phishing or redirection attack.

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/wb?keyword=cbse%20class%2010%20science%20guide%20pdf
    • http://files.jandytaylor.com/uploads/1/3/2/6/132696194/5130361.pdf
    • https://cdn.shopify.com/s/files/1/0432/6457/3593/files/91463354936.pdf
    • https://cdn.shopify.com/s/files/1/0434/0105/2312/files/teduwijug.pdf
    • https://cdn.shopify.com/s/files/1/0431/5951/9394/files/34365909048.pdf
    • https://cdn.shopify.com/s/files/1/0428/5012/3943/files/joxobogizulol.pdf
    • https://cdn.shopify.com/s/files/1/0432/9301/6222/files/49257392778.pdf
    • https://cdn.shopify.com/s/files/1/0434/5017/1554/files/midode.pdf
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/dujajum.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41448402009.pdf
    • https://cdn.shopify.com/s/files/1/0427/6905/5911/files/14940938751.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_off00007381.bin
76ab4f2b062dcf14287dda1911d14989dedf1d1e2e9aca18b4ed061727b84899		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7381 5468 bytes
font_01_sfnt_off00008621.bin
219d5bf1c4e571badea991b2883ff1aa344a774b5ebd9e3eb2230c68bbd68cd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8621 10404 bytes

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