Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d8aa4375fee95d9…

MALICIOUS

PDF

41.5 KB Created: 2020-08-03 00:53:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e4bb6a0f6e6bf31e7d5884d54070833 SHA-1: 7afa9da3c7c9096420c38b5c1e6c771aa4097a09 SHA-256: 4d8aa4375fee95d95cabe5d0c4bf3d80222e654bdb19bb7661734251887accc0
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=noel+jones+manual+for+preachers+pdf', suggesting an attempt to redirect users to malicious content. The document body, though heavily obfuscated, also contains this URL, reinforcing the lure. The presence of numerous links and the malicious redirector strongly indicate a social engineering attack aimed at content delivery.

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.cc/pify?keyword=noel+jones+manual+for+preachers+pdf
    • http://files.rootptandwellness.org/uploads/1/3/1/8/131856076/lesabafufazogeziz.pdf
    • http://files.tinytouchoflove.org/uploads/1/3/1/6/131636954/rerinovuwazeno.pdf
    • http://files.artfulflowe.com/uploads/1/3/0/9/130969489/zepiminipobizoxado.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tiwimuz.pdf
    • https://cdn.shopify.com/s/files/1/0427/8845/4559/files/vasigax.pdf
    • https://cdn.shopify.com/s/files/1/0428/3056/1436/files/25074778232.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3982/files/lesoredufokokozerelorez.pdf
    • https://cdn.shopify.com/s/files/1/0431/0423/9770/files/zawotunonamedalenuzezigaf.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2454/files/32020698786.pdf
    • https://cdn.shopify.com/s/files/1/0430/0754/1401/files/gebonegotavepafevela.pdf
    • https://cdn.shopify.com/s/files/1/0431/5152/4008/files/77518747867.pdf
    • https://cdn.shopify.com/s/files/1/0434/0062/6325/files/wuzezoxopasuro.pdf
    • https://cdn.shopify.com/s/files/1/0431/4539/6384/files/pixuxo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2264/6422/files/9584024122.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/sepila.pdf
    • https://cdn.shopify.com/s/files/1/0429/4826/4089/files/47409384798.pdf
    • https://cdn.shopify.com/s/files/1/0431/1387/3569/files/xapox.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_off000061d8.bin
1a60d9acf60e3ddf4ab701c3aff35f8e26783027809db87803d034de57fc3fa7
pdf-font-stream PDF embedded font (sfnt) at offset 0x61D8 5440 bytes
font_01_sfnt_off00007430.bin
b67e4babf58c40023ab0528d0e0fc2e83dce886be51ea1852489e84313da7dc1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7430 10276 bytes