Malicious PDF — malware analysis report

Static analysis result for SHA-256 939c33de04906bbb…

MALICIOUS

PDF

48.5 KB Created: 2020-08-06 11:46:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02c5a21a6d67c6595177b30d084a06f3 SHA-1: ee9aa547fb039ad61112b16bc3bbc5e0d409563a SHA-256: 939c33de04906bbba524d66f53aa800e19f3fab43f499c24c297fb198c04dd84
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the malicious URL. The primary malicious indicator is the PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing on https://ttraff.com/pify?keyword=artificer+handbook+3.+5+pdf, which suggests the document is designed to redirect users to harmful content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=artificer+handbook+3.+5+pdf
    • http://files.musicwarepress.com/uploads/1/3/0/8/130874655/tozinisevug_tiwuzas_putakapiv_pamiwetigiv.pdf
    • http://nirojeki.amandamosspr.uk/uploads/1/3/0/7/130776366/5726522.pdf
    • http://files.mindactionplan.com/uploads/1/3/0/7/130738794/fonixajade.pdf
    • http://files.urbansoundstudio.com/uploads/1/3/0/7/130776363/9e3156.pdf
    • https://cdn.shopify.com/s/files/1/0434/0069/1868/files/23095766856.pdf
    • https://cdn.shopify.com/s/files/1/0430/0849/1673/files/xedoxejetirewe.pdf
    • https://cdn.shopify.com/s/files/1/0432/4163/5997/files/68399641086.pdf
    • https://cdn.shopify.com/s/files/1/0429/0940/1254/files/67002928433.pdf
    • https://cdn.shopify.com/s/files/1/0432/1384/8731/files/wanenujave.pdf
    • https://cdn.shopify.com/s/files/1/0430/5145/0519/files/the_boyfriend_list.pdf
    • https://cdn.shopify.com/s/files/1/0434/7507/5225/files/xemejesonadefivewebatoji.pdf
    • https://cdn.shopify.com/s/files/1/0431/6105/9477/files/38615660973.pdf
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/genovepufariletokekurud.pdf
    • https://cdn.shopify.com/s/files/1/0431/3353/4357/files/39323304978.pdf
    • https://cdn.shopify.com/s/files/1/0432/8433/2710/files/minecraft_pe_ids.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_off00007d0d.bin
9f7c8d140a80d90c8e24c2806c62f6bbb3432030368292f1303bcac6bf8ede7a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D0D 5548 bytes
font_01_sfnt_off00008fe8.bin
7fd846538d5cd2c1e2c272396146b87757f3309ced8dcacdee3910011ac91de9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE8 10792 bytes