Malicious PDF — malware analysis report

Static analysis result for SHA-256 8056d93f19d7fec2…

MALICIOUS

PDF

48.0 KB Created: 2020-08-19 07:47:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93ee840790947b52eee9ad6b94f1b971 SHA-1: ee32b0e0222b8cfcdd4a665583caac88aba6be8a SHA-256: 8056d93f19d7fec26fa09b5dfa54fb02a8bd3aa2d88ab5b00d7aa757fc656b59
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the same search query as the URL, suggesting a lure. The PDF also contains a large number of links to shopify.com, likely part of a link farm to improve SEO for the malicious redirector. No scripts were extracted from this sample.

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=what+dryer+sheets+have+oleander+in+them
    • http://files.fbcmon.org/uploads/1/3/0/8/130813325/pikopofe.pdf
    • http://notekared.barbarabickmore.com/uploads/1/3/0/9/130969153/foxamem_vejamutu_pejitozimavo_sekuvomobesus.pdf
    • https://cdn.shopify.com/s/files/1/0437/6713/6413/files/80716491286.pdf
    • https://cdn.shopify.com/s/files/1/0431/3320/6690/files/xiludutetu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1576/5148/files/download_photoshop_trials.pdf
    • https://cdn.shopify.com/s/files/1/0432/2410/5121/files/gy-_gps6mv2_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0436/6955/3305/files/lanopoguwiwidela.pdf
    • https://cdn.shopify.com/s/files/1/0434/5715/1129/files/haynes_small_engine_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/4528/2214/files/61930922709.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/1764447787.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rosetotirumeza.pdf
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/56193387449.pdf
    • https://cdn.shopify.com/s/files/1/0435/5653/6471/files/94348068606.pdf
    • https://cdn.shopify.com/s/files/1/0428/1185/0918/files/67794382113.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_off0000726f.bin
c7a1161d52824b54d1ce2cd3a16189f61036b532c4c5e6a554c72f0d24aca8fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x726F 5028 bytes
font_01_sfnt_off00008369.bin
8ff59ce80c9aeff5cc7a74a6d7d7a46b25bcd5b7e7d908982bb6ee666fc96a58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8369 9868 bytes
font_02_sfnt_off0000a521.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA521 4324 bytes

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