Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9533d91d26c027f…

MALICIOUS

PDF

46.5 KB Created: 2020-08-03 07:11:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87fcd6581f3d73a51b679856455777c0 SHA-1: 03fedd53b5e864d6d83a6d6c2d72ce587f7f99c2 SHA-256: e9533d91d26c027f9cce3fd816bd5826cf6d036d6b920342339ad9e9335febc1
128 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains hosting other PDFs. One prominent link, 'https://ttraff.cc/pify?keyword=vector+magic+key+gen', is identified as a malicious redirector. The presence of a visual download button lure further supports the social engineering aspect of this attack. The document body contains garbled text but includes the malicious URL.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=vector+magic+key+gen
    • http://files.kubikhouse.com/uploads/1/3/2/6/132682822/xituxelemanuzemif.pdf
    • http://files.murchiebhs.com/uploads/1/3/1/4/131453539/dugok.pdf
    • http://files.victorialeeoboe.com/uploads/1/3/0/7/130739713/kizusewev.pdf
    • http://files.lookwhosupports.com/uploads/1/3/0/7/130739155/8626216.pdf
    • http://files.theeducatedblackboy.com/uploads/1/3/0/7/130776263/mukema.pdf
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/zufuxubumutuxafoletof.pdf
    • https://cdn.shopify.com/s/files/1/0431/6689/2186/files/zituxefodi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0618/8955/files/bever.pdf
    • https://cdn.shopify.com/s/files/1/0431/0358/4409/files/49122899938.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70354855800.pdf
    • https://cdn.shopify.com/s/files/1/0431/7449/4369/files/affairscloud_pocket_pdf_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/7949/8918/files/tuzabizikofatibupa.pdf
    • https://cdn.shopify.com/s/files/1/0440/2541/3782/files/59011477096.pdf
    • https://cdn.shopify.com/s/files/1/0430/2418/7549/files/91136305935.pdf
    • https://cdn.shopify.com/s/files/1/0429/9830/0823/files/numejofufij.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c04.bin
1a64d14bb6da33fae1b3038e67c056ddca0e448a596433436a2b13c5a6c47c01
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C04 4828 bytes
font_01_sfnt_off00007c54.bin
5a1a316818ce33ac645fb9e3195d423d61680088d3a62811f39cb7f96acc0fc7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C54 10132 bytes
font_02_sfnt_off00009ef7.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x9EF7 4324 bytes