Malicious PDF — malware analysis report

Static analysis result for SHA-256 e070264588b6a85c…

MALICIOUS

PDF

48.2 KB Created: 2020-08-05 13:35:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86d4daaaf793228c3063d06ad9b811ef SHA-1: 32c117050651970124fee071ac49c16b3ee1f788 SHA-256: e070264588b6a85c6347d2ba18ad1f8c2a79b2c6e82991122f616333f782d430
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' specifically flags a link to 'ttraff.ru', indicating malicious redirector infrastructure. The document body, though partially garbled, contains the same title as the malicious URL, suggesting a lure for educational material that leads to a malicious site.

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.ru/pify?keyword=plan+y+programas+aprendizajes+clave+pdf+sexto+grado
    • http://vifozodep.accidentaladmintoawesomearch.com/uploads/1/3/1/4/131407178/2541026.pdf
    • http://files.midatlanticoceanplanning.org/uploads/1/3/0/8/130814121/sokogepetopem-sixiviwexaj-lobasibugog.pdf
    • http://files.healingtreepdx.com/uploads/1/3/2/3/132302859/4897945.pdf
    • https://cdn.shopify.com/s/files/1/0431/5712/7336/files/72412143478.pdf
    • https://cdn.shopify.com/s/files/1/0447/9824/7069/files/git_set_upstream.pdf
    • https://cdn.shopify.com/s/files/1/0427/5548/9948/files/gofoparibotikube.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejumaxerufu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5982/2243/files/58438107990.pdf
    • https://cdn.shopify.com/s/files/1/0431/7449/4369/files/43108690213.pdf
    • https://cdn.shopify.com/s/files/1/0430/4823/9257/files/ganafe.pdf
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/datuparipusor.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2836/files/6472721324.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_off00005eb0.bin
ffeb89eaad713c9717385028f79c9757067aafb2c2382ea8cbab0e6efe35a425		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB0 6744 bytes
font_01_sfnt_off00006f98.bin
8925f0ef17fb7ba630ba28f086f7c5247b53b1847c57910b4fd6da89fe6582d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F98 5832 bytes
font_02_sfnt_off0000837d.bin
7f38c7bd3076d5ec567b373f8788658f617417f44aeaffad1c2d563936ecbb0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x837D 2268 bytes
font_03_sfnt_off00008d8d.bin
9012ade31af5da5812bdae60eefb0100f57cc1235f9302db5031ace16b1967c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8D 11016 bytes

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