Malicious PDF — malware analysis report

Static analysis result for SHA-256 54fd5ce25e36a2fa…

MALICIOUS

PDF

50.4 KB Created: 2020-08-09 00:24:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94704eefb9ec36f0242028063b4bace0 SHA-1: f8eb5e3236b3ba0665f69f2af7dd807042ab1f5f SHA-256: 54fd5ce25e36a2fa8509bef5500d8561d607f8b3dc6ace3f7569ed4b5353630a
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of numerous embedded links. A critical heuristic firing indicates that these links point to a known malicious redirector infrastructure, specifically 'ttraff.cc', which is likely used to funnel victims into a phishing or scam operation. The document body contains garbled text but also includes the target URL and several other Shopify-hosted PDF links, suggesting a link farm or content distribution strategy.

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=abortion+pdf+journal
    • http://files.hannaconstruction.ca/uploads/1/3/0/7/130775817/3b612486ab.pdf
    • http://files.palmamingozzi.com/uploads/1/3/1/3/131398419/vujosizo-xigutamogo-gonug.pdf
    • http://files.hartsobig.com/uploads/1/3/1/3/131381363/3358569.pdf
    • http://files.bbshopdesigns.com/uploads/1/3/1/8/131858661/cd97d57e.pdf
    • https://cdn.shopify.com/s/files/1/0428/3724/6118/files/15327133321.pdf
    • https://cdn.shopify.com/s/files/1/0437/1991/7717/files/12080785612.pdf
    • https://cdn.shopify.com/s/files/1/0438/3227/9200/files/xudividasodefupojodisewa.pdf
    • https://cdn.shopify.com/s/files/1/0450/1949/6606/files/splatoon_2_lobby.pdf
    • https://cdn.shopify.com/s/files/1/0429/7241/4106/files/iphone_6_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/0080/7070/files/81870375567.pdf
    • https://cdn.shopify.com/s/files/1/0429/4885/3926/files/59844280324.pdf
    • https://cdn.shopify.com/s/files/1/0431/1423/4016/files/24203209780.pdf
    • https://cdn.shopify.com/s/files/1/0428/6011/8175/files/amniotic_membrane_transplantation.pdf
    • https://cdn.shopify.com/s/files/1/0437/4754/1146/files/18777662510.pdf
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/84866412749.pdf
    • https://cdn.shopify.com/s/files/1/0433/9505/5766/files/fajod.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_off00008909.bin
cc1d9782b248ec81bff01f00a165c298c6569e1ba28098bf522c6d129e75786d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8909 5064 bytes
font_01_sfnt_off00009a52.bin
4fd830560f46fd19c1bee89d8ace3aef3bbba9c1e1008d011a16bdc37ff5a725		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A52 10192 bytes

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