Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe89590e508719f2…

MALICIOUS

PDF

118.0 KB Created: 2020-08-23 03:55:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 768501b17d834ea81331655e041a52bd SHA-1: 8ea677fd5efbed34b3fc877e68f6592cd480047e SHA-256: fe89590e508719f2ff18fc2494d7a5e2a0c5393cc5e53fdfb6f9af3c0d815f07
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Hypertriglyceridemia guidelines uk' and the malicious URL 'https://ttraff.cc/pify?keyword=hypertriglyceridemia+guidelines+uk'. This suggests a phishing or scam attempt where the user is directed to malicious infrastructure.

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=hypertriglyceridemia+guidelines+uk
    • http://files.cppbands.org/uploads/1/3/0/7/130776277/kasukekolumivajumiva.pdf
    • http://fusezi.moldingminds.org/uploads/1/3/1/4/131453501/6085cb324ca.pdf
    • http://natepalaj.mvsterminerals.com/uploads/1/3/1/4/131437116/mumenozojabenoj.pdf
    • https://cdn.shopify.com/s/files/1/0459/6255/9648/files/50265078420.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8080/files/79682849361.pdf
    • https://cdn.shopify.com/s/files/1/0434/9578/4600/files/safuwovi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9550/6592/files/69101085950.pdf
    • https://cdn.shopify.com/s/files/1/0435/8973/0467/files/bibolipurezanil.pdf
    • https://cdn.shopify.com/s/files/1/0431/5529/2317/files/vuxinarik.pdf
    • https://cdn.shopify.com/s/files/1/0430/9037/8903/files/pufosonutumap.pdf
    • https://cdn.shopify.com/s/files/1/0440/8524/8165/files/68161578062.pdf
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/pusawexijeruwodesenax.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gegexovikorojirokelaxedu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9200/1433/files/windows_update_kb_3035583.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_off00017e70.bin
5addc4b28ab9bcdd22534de3cc31d2966dcc076e489b92145ed36cb8108c493b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17E70 5520 bytes
font_01_sfnt_off00019120.bin
15e95193a20f6ea5457cbd0f2ce0db37e4e078b262e2fd4ba72b0c47b39b1dd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19120 10396 bytes
font_02_sfnt_off0001b4df.bin
a1d034c4899da820a17195885c2d76cd6be3fce17d3f1660d9b3805b34643d2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B4DF 16272 bytes

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