Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ab303e78a40524f…

MALICIOUS

PDF

45.0 KB Created: 2020-08-02 03:01:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99ab6fc6c9ce3dd79ad4cf85d0854f85 SHA-1: 2fae04be020b839075f3030aa3f8d5441bf0f6c4 SHA-256: 9ab303e78a40524fe86b6ef7079687eab730685c9f7fd8d97f5ee63feff290ec
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.ru. This suggests the document is designed to lead users to malicious content under the guise of a '2015 donation value guide'. No scripts were extracted, but the PDF structure and embedded links strongly indicate 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.ru/pify?keyword=2015+donation+value+guide
    • http://files.lizziehobbs.co.uk/uploads/1/3/1/3/131380777/2c651caee9.pdf
    • http://files.weiserschools.org/uploads/1/3/1/4/131453276/tilazorofunof_sutux.pdf
    • http://files.modernhomebuyers.us/uploads/1/3/1/6/131606874/butelesaxesuxazaw.pdf
    • http://files.elizabethcromano.com/uploads/1/3/1/4/131437530/winonanorixofos.pdf
    • http://files.alyssahchase.com/uploads/1/3/1/4/131438509/vemaj-nusisuredulep-duxogipuki-derawisiroru.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8359/files/jidimasugilad.pdf
    • https://cdn.shopify.com/s/files/1/0429/9915/2799/files/nofemakidedajaloxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6780/1749/files/furavumef.pdf
    • https://cdn.shopify.com/s/files/1/0434/3909/5973/files/chief_keef_instagram.pdf
    • https://cdn.shopify.com/s/files/1/0437/8171/8167/files/66547084757.pdf
    • https://cdn.shopify.com/s/files/1/0431/5929/0022/files/95425919072.pdf
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/tirukomejok.pdf
    • https://cdn.shopify.com/s/files/1/0431/2465/4241/files/82452509565.pdf
    • https://cdn.shopify.com/s/files/1/0440/8170/9206/files/43439816437.pdf
    • https://cdn.shopify.com/s/files/1/0437/6382/6849/files/nafuli.pdf
    • https://cdn.shopify.com/s/files/1/0431/0332/2261/files/xaxibudatenebigaki.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_off0000696d.bin
cc7a8a31d1fee5fdc92a08f97daf1ab68f51b9d24fcc3415d4109e7ccd1332ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x696D 5136 bytes
font_01_sfnt_off00007b09.bin
bc2431c36c70df98e25edabe60323e86d8e816d40f0339949624d08f3a6835a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B09 13284 bytes

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