Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f32c8dcc27c2cf8…

MALICIOUS

PDF

48.5 KB Created: 2020-08-08 11:46:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 479b7cc0f26520c3bdf181197591ca8e SHA-1: ca429c4b957b0eed082932f492dccf0da3dbce8e SHA-256: 7f32c8dcc27c2cf88443d2bb53c4986a7cfe01d0b75eb3a5a77b2fff01f2374b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a mass of external links, masquerading as a technical guide. The primary link, 'https://ttraff.com/pify?keyword=getting+started+with+spring+framework+pdf+github', is identified as a malicious redirector. This suggests the document's purpose is to redirect users to malicious sites, likely for phishing or malware distribution. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=getting+started+with+spring+framework+pdf+github
    • http://files.norwichstudentlettings.co.uk/uploads/1/3/1/1/131163640/zazisomezisus.pdf
    • http://subul.cahillshpall.com/uploads/1/3/2/6/132695663/limakogukod.pdf
    • http://files.bestsaletoyota.com/uploads/1/3/2/6/132681477/dojezu.pdf
    • http://mubapasa.victoryhinesville.com/uploads/1/3/0/7/130740025/91c2140b.pdf
    • https://cdn.shopify.com/s/files/1/0427/6781/0726/files/xovufo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0076/6369/files/febosunolowekekukagof.pdf
    • https://cdn.shopify.com/s/files/1/0437/8984/4637/files/wunobopamimakisowura.pdf
    • https://cdn.shopify.com/s/files/1/0431/7783/6702/files/famavibokowenidejejerax.pdf
    • https://cdn.shopify.com/s/files/1/0437/9620/1629/files/15190992119.pdf
    • https://cdn.shopify.com/s/files/1/0438/5875/5749/files/valoziwa.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/pekaxinimovuriki.pdf
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/defititugobusabenuzedak.pdf
    • https://cdn.shopify.com/s/files/1/0430/8461/1737/files/xobekoxupuwotezajej.pdf
    • https://cdn.shopify.com/s/files/1/0434/1514/2567/files/nezulobanomav.pdf
    • https://cdn.shopify.com/s/files/1/0434/4184/8470/files/6435759972.pdf
    • https://cdn.shopify.com/s/files/1/0433/6346/7414/files/diriratazobu.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_off00007998.bin
dbb459915807ddfdba2a07f963676e9926aa1d460063527cdd972486b311c219		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7998 5752 bytes
font_01_sfnt_off00008d18.bin
226b9c4ac67af4ca41790138d2248b2418ab85d76cffad0222eaa26b0766ccd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D18 12288 bytes

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