Malicious PDF — malware analysis report

Static analysis result for SHA-256 4647311fa5a0f406…

MALICIOUS

PDF

45.4 KB Created: 2020-08-29 12:24:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84bf86bfc2e94131c8f5843511f4d162 SHA-1: 38039936e17dba45f06cf361874767cd2e823d44 SHA-256: 4647311fa5a0f406d80e8a3ec7e8b2089c2ce0c9299faa3c1889c9dba30f5b72
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, disguised as a 'Darkest Dungeon class guide'. This indicates a social engineering lure to direct users to potentially harmful content. The PDF also contains a large number of embedded links, many pointing to static.usrfiles.com, which is flagged as a link farm. 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.ru/wix?keyword=darkest+dungeon+class+guide
    • https://static.usrfiles.com/ugd/c3f88d_f006d7c990514f998ba7d62c32d0d575.pdf
    • https://static.usrfiles.com/ugd/b8c837_e645b4ebe37341c98208593389752947.pdf
    • https://static.usrfiles.com/ugd/b8c837_aed81ba7b08a47d29e8023889db43d12.pdf
    • https://static.usrfiles.com/ugd/b8c837_d959ab4ea29e44358bc3c9c5325339e3.pdf
    • https://static.usrfiles.com/ugd/b8c837_94283133bc734ca2853e7868c2078e9b.pdf
    • https://static.usrfiles.com/ugd/b8c837_c53fce6494ad447ebf461da4fc0fe626.pdf
    • https://static.usrfiles.com/ugd/b8c837_00b3841e60a445598df8d3c5c2635e84.pdf
    • https://static.usrfiles.com/ugd/b8c837_036edfe4fecf43169e19388be727cec1.pdf
    • https://static.usrfiles.com/ugd/b8c837_70d56713e71d4e3aae5aa0a3bb22e27b.pdf
    • https://static.usrfiles.com/ugd/b8c837_992adac93b654c349a4bec00acd0ecd8.pdf
    • https://cdn.shopify.com/s/files/1/0428/1643/8438/files/96840861931.pdf
    • https://cdn.shopify.com/s/files/1/0437/0530/3205/files/lerusudufulipokudixakaxis.pdf
    • https://cdn.shopify.com/s/files/1/0435/4641/1160/files/arthur_kingsley_porter.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/82878389437.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006513.bin
adc2a4db21937bdefb85d062185f81aaf47de875827492023dc139333e33323c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6513 5052 bytes
font_01_sfnt_off0000764f.bin
96d036b900611372e1b6689b297d3273ce1257e826ebf868e0cb1cd9860535ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x764F 10580 bytes
font_02_sfnt_off00009a8b.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A8B 4324 bytes

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