Malicious PDF — malware analysis report

Static analysis result for SHA-256 48bbc69d857f4eac…

MALICIOUS

PDF

33.9 KB Created: 2020-08-17 15:57:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b4004a3559356c1ece55f5532573cb17 SHA-1: 0823ed84d5e2b38159a1aa50cf6d10d1b85be0e5 SHA-256: 48bbc69d857f4eace0c47bb5610039e01e84eb2a6b3c7fe5ba3e006f17f884fd
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, a PDF link farm heuristic indicates the document is designed to host numerous external links. The ML classifier also strongly flagged this PDF as malicious. The embedded URL 'https://ttraff.com/pify?keyword=blue+green+t+shirt+template' is the primary indicator of malicious intent, likely serving as a lure for phishing or malware delivery.

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=blue+green+t+shirt+template
    • http://files.sewitupdesigns.com/uploads/1/3/0/9/130968950/nudevalegevipitaz.pdf
    • http://files.princessworthdyingfor.com/uploads/1/3/2/6/132681153/6352733.pdf
    • https://cdn.shopify.com/s/files/1/0436/6126/3001/files/personal_bible_study_methods.pdf
    • https://cdn.shopify.com/s/files/1/0437/0015/8632/files/98702036802.pdf
    • https://cdn.shopify.com/s/files/1/0434/4535/4658/files/tekigugejijebujawijupa.pdf
    • https://cdn.shopify.com/s/files/1/0433/9780/8285/files/mozewumaxedamalok.pdf
    • https://cdn.shopify.com/s/files/1/0433/7182/3262/files/86564430388.pdf
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/10209170045.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/87903401931.pdf
    • https://cdn.shopify.com/s/files/1/0435/1184/0927/files/wisijikidefedefezuretoko.pdf
    • https://cdn.shopify.com/s/files/1/0429/6992/3740/files/african_fashion_history.pdf
    • https://cdn.shopify.com/s/files/1/0434/2172/8918/files/33496487885.pdf
    • https://cdn.shopify.com/s/files/1/0452/2855/6445/files/19459709093.pdf
    • https://cdn.shopify.com/s/files/1/0429/8221/1733/files/java_random_number_in_range.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupesuditijativerawepafu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.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_off00004688.bin
cd39809e0df48d088c7c36b048a2836e35eeea0b8e055e9f23d7f03b12e961f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4688 5284 bytes
font_01_sfnt_off0000584d.bin
4b60e791156449a92cb4cda86d96bacb8d53b609dc9441688502a86588bd30d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x584D 9736 bytes

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