Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7fa4690e3208243…

MALICIOUS

PDF

43.2 KB Created: 2020-08-04 02:27:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7329d06211beb9f9e74114ca806386b6 SHA-1: 87a25a7a09236fc823651a1ed5557d853bd5beed SHA-256: f7fa4690e3208243a208eeeff3700d8e5ba788dc4bb7e1f37b6400e736768a8c
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to appear as a free download for a medical PDF. The primary link, https://ttraff.com/pify?keyword=atlas+of+amputations+and+limb+deficiencies+pdf+free+download, is identified as a malicious redirector. This suggests the document's purpose is to redirect users to malicious infrastructure, likely for further exploitation or malware delivery. 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=atlas+of+amputations+and+limb+deficiencies+pdf+free+download
    • http://files.angcwestpotomac.com/uploads/1/3/1/4/131413718/de9ac.pdf
    • http://files.omlalawyers.com/uploads/1/3/0/7/130776120/kekine.pdf
    • http://files.tradewatercandles.com/uploads/1/3/1/3/131381675/e00cb17966.pdf
    • http://files.linnmastergardeners.com/uploads/1/3/1/3/131383747/1634272821.pdf
    • https://cdn.shopify.com/s/files/1/0440/1712/3486/files/84286832964.pdf
    • https://cdn.shopify.com/s/files/1/0434/0908/0477/files/67434059143.pdf
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/xoberug.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5814/files/mugisovofeduwituxo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3840/7845/files/equidad_de_genero_en_el_ambito_laboral_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0431/3651/6250/files/rarulokiboxapatemujulu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7957/files/voderubaxuregotilazuguv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/duwaxufezemurogagur.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/namofomiveropoladosotej.pdf
    • https://cdn.shopify.com/s/files/1/0436/1184/8861/files/arduino_ide_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/8492/3555/files/patidasedepawera.pdf
    • https://cdn.shopify.com/s/files/1/0440/3052/5590/files/siwupapatos.pdf
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/27527363896.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_off00006932.bin
c15732e74dbba05655f1f62800756773eba5cf6da7387821c30f8a62082238af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6932 5520 bytes
font_01_sfnt_off00007bef.bin
c5b9b36334181e5931eb12945246c2739cbeda4b11b469025a1eb300501b7b0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BEF 10204 bytes

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