Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe12d6c09be3a28…

MALICIOUS

PDF

42.1 KB Created: 2020-08-22 17:50:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59e6b27775f34d2d21b05d345674e060 SHA-1: 29ab046d8775b974162bfcdd451b7c9d09d7dfa1 SHA-256: abe12d6c09be3a2868ce5ad1ac06168f8cc5a3fe02801277f88f1d3e4c904153
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the same URL as the redirector, indicating it's the primary lure.

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=movimiento+uniformemente+acelerado+ejemplos+cotidianos
    • http://files.edenbodysf.com/uploads/1/3/0/9/130969057/gojibo-xatowapigot.pdf
    • http://poxevom.bluebearwalhalla.com/uploads/1/3/1/4/131407511/9223746.pdf
    • http://razunugej.giovannitria.com/uploads/1/3/2/6/132681233/pedinafudibamoj-zanigekoj-jomajol-jawobenofibituk.pdf
    • https://cdn.shopify.com/s/files/1/0431/6885/8272/files/fozex.pdf
    • https://cdn.shopify.com/s/files/1/0432/0280/5921/files/dungeons_of_dredmor_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73768917897.pdf
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/pesoginafazap.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dedijadexurusefux.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wudogezemolajefenupil.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tadigepulimo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4060/4314/files/96407860155.pdf
    • https://cdn.shopify.com/s/files/1/0432/0952/3355/files/87615145544.pdf
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/british_gas_smart_meter_app.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006298.bin
dc8065e7c0f6b7acd953888e02dba3eb85819bfde661a276ceed3555720e014f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6298 5440 bytes
font_01_sfnt_off00007515.bin
6bd0a35ec9765c1ba144f65348e79ebe4c0da5f301103aec0f899b7ad39f14a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7515 11244 bytes

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