Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc775a8a8bacc6cb…

MALICIOUS

PDF

64.7 KB Created: 2020-08-25 12:27:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ac1573e260ed54a4b13cc01d239eb12b SHA-1: 107bab268bf6478d7b7e91ee8824e5b229f8c84d SHA-256: cc775a8a8bacc6cbd97bfe8b79464dbb698a293eb83202957d61044d3657272f
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector link, indicating a phishing or scam attempt. The document body mentions 'Shadow blade free pc', likely a lure to entice clicks on the malicious URL. The presence of numerous external PDF links, many hosted on Shopify, suggests an attempt to obscure the malicious redirector.

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/pify?keyword=shadow+blade+free++pc
    • http://zekozes.eevcom-montpellier.com/uploads/1/3/1/4/131482950/4896267.pdf
    • http://files.diekmancounseling.com/uploads/1/3/1/4/131483025/xijapopigigelaz.pdf
    • http://files.deeperwaterscounseling.org/uploads/1/3/1/3/131379371/8160395.pdf
    • http://files.jacollierville.org/uploads/1/3/0/7/130739570/6664852.pdf
    • http://files.sophalawyer.com/uploads/1/3/1/8/131857060/rulevolipubiw.pdf
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/kodo_skin_scroll.pdf
    • https://cdn.shopify.com/s/files/1/0432/2135/2606/files/85890695248.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0674/files/98659348184.pdf
    • https://cdn.shopify.com/s/files/1/0429/0802/4985/files/51338566025.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29025511016.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/lugirisiti.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7485095273.pdf
    • https://cdn.shopify.com/s/files/1/0437/1431/4405/files/wujadeniwexu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2358/0835/files/mewazevawomilokefev.pdf
    • https://cdn.shopify.com/s/files/1/0433/6825/1548/files/beauty_and_the_beast_musical_full_script.pdf
    • https://cdn.shopify.com/s/files/1/0438/2756/0610/files/xinen.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000082a3.bin
e5c544bd8e94417b1e7c60ded095b45f1157497bc93e9271f396743b49118950		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82A3 5400 bytes
font_01_sfnt_off00009503.bin
dbdab5f8c988033cbf1d4c82cd3cde93a8255efacf8a71507f8165d4ef36b3c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9503 7920 bytes
font_02_sfnt_off0000a94d.bin
4e15cab0b01e746d0590e5f10ede0d9466d7e13a4926489f9bdada5b8e9fa470		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA94D 17492 bytes
font_03_sfnt_off0000ddc6.bin
5b190efa20846082f36026b43024bc38a24aba8653791bb641acac0084f7ba56		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC6 17136 bytes

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