Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fec5139ba1083eb…

MALICIOUS

PDF

49.6 KB Created: 2020-08-15 00:41:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 500e9cd29ec5201c83d49e22c302772f SHA-1: f5b3b5f09b8aa6d5fb375e0f7b36df4bd3ad8b44 SHA-256: 3fec5139ba1083eb45fee447ea87809c4d60aed9141aa96320bd36421c719981
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains the string 'https://ttraff.cc/wb?keyword=cherry%20tree%20by%20ruskin%20bond%20pdf', indicating a lure to download a book which ultimately leads to malicious infrastructure. This suggests a phishing or social engineering attack aimed at redirecting users to harmful content.

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/wb?keyword=cherry%20tree%20by%20ruskin%20bond%20pdf
    • http://files.angelahilario.com/uploads/1/3/1/3/131398419/5891351.pdf
    • https://cdn.shopify.com/s/files/1/0447/8962/9079/files/download_act_ffxiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/2670/1718/files/tibob.pdf
    • https://cdn.shopify.com/s/files/1/0443/0469/5452/files/42867314228.pdf
    • https://cdn.shopify.com/s/files/1/0434/5239/9773/files/towovejefexokogugo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3165/7621/files/baluwa.pdf
    • https://cdn.shopify.com/s/files/1/0428/1440/6823/files/canon_eos_rebel_t6i_750d_for_dummies_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/6529/4504/files/lisifonekupilomegelebudug.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/18636989465.pdf
    • https://cdn.shopify.com/s/files/1/0434/0059/3557/files/proyecto_generador_eolico_casero.pdf
    • https://cdn.shopify.com/s/files/1/0431/5080/3099/files/vivax.pdf
    • https://cdn.shopify.com/s/files/1/0429/6245/2643/files/cisco_access_control_security_aaa_administration_services.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005489.bin
70f980b4649bc85b70164a9179a4efd33c6ec28d7d88fdcebe7ad0ac32b30cae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5489 5100 bytes
font_01_sfnt_off000065d7.bin
4f60b374cbf2a68c08ee4e6e5bd880b9285dc74a309ed42da0b9c7a2c0026502		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65D7 3720 bytes
font_02_sfnt_off0000712f.bin
68503592a9b13d04c66d91ddf83a4f791ee3d30ad04418e07f32f6de173285b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x712F 2424 bytes
font_03_sfnt_off00007ab0.bin
61622e851b792c182cf8be4796da13322c2b16498aec122fc35bf5002a042e74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB0 9508 bytes
font_04_sfnt_off00009b73.bin
7155435ecbeac284d954e34b140c620c796b5dbd827c76cb8c80313587a81632		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B73 9092 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.