Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0c5677d3ea5c8ff…

MALICIOUS

PDF

68.0 KB Created: 2020-08-03 10:31:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 566cbee253324604d4c55f36126d66bc SHA-1: ee8ba183e9981a811a7d49fd644eff3d6b46c500 SHA-256: d0c5677d3ea5c8ff20e86c333e3bf4addd6a983b1fd453bc2f8d1673078290d3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL. The primary attack vector appears to be a lure using a seemingly innocuous title to entice users to click the malicious link.

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=sword+of+seals
    • http://files.thelovelyphotographers.com/uploads/1/3/0/7/130776126/3611084.pdf
    • http://files.tiedyeharvest.com/uploads/1/3/0/8/130814192/wiwutafiwal-tugux.pdf
    • http://files.stonesoupshakespeare.com/uploads/1/3/0/8/130814124/2105364.pdf
    • http://files.lovefeastgathering.com/uploads/1/3/1/1/131164081/2211740.pdf
    • http://files.belllog.org/uploads/1/3/0/7/130775827/2358242.pdf
    • http://files.thelovelyph
    • https://cdn.shopify.com/s/files/1/0432/2315/4847/files/78522225113.pdf
    • https://cdn.shopify.com/s/files/1/0437/7129/7943/files/20707665700.pdf
    • https://cdn.shopify.com/s/files/1/0439/8232/3870/files/11358741216.pdf
    • https://cdn.shopify.com/s/files/1/0431/8016/3227/files/gufaruser.pdf
    • https://cdn.shopify.com/s/files/1/0431/0119/2352/files/20678822204.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/9810417120.pdf
    • https://cdn.shopify.com/s/files/1/0431/9664/5538/files/point_a_domain_to_a_directory_aws.pdf
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/nemazesabe.pdf
    • https://cdn.shopify.com/s/files/1/0430/8906/8185/files/lepafujozutozisewuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/8947/7278/files/15472399138.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_off00009618.bin
49611022acdf25484e53b299e06fd5de1e834fd0ef92e449a26c56e29a64a29c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9618 13068 bytes
font_01_sfnt_off0000c094.bin
f191c348f21e4c6121472297b1abdd35ee2b011b2e47b710ae67220df8d6a698		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC094 4652 bytes
font_02_sfnt_off0000d076.bin
8fe73df8dfa9bb8510dd03bbfbcc4841a054b1b3505fa2ae043c0484a51ea694		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD076 10652 bytes
font_03_sfnt_off0000f494.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF494 4324 bytes

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