Malicious PDF — malware analysis report

Static analysis result for SHA-256 f429c6ee2bc507e3…

MALICIOUS

PDF

42.3 KB Created: 2020-09-02 23:15:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98416c0cffb1f844abaa21864730367d SHA-1: 2e6a92d643901279eefd60025c7597eb5a5ba4de SHA-256: f429c6ee2bc507e39a148bc2ab31f475d43845a32f0b0f2c10909064914b858d
150 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a known malicious redirector, disguised as a weather report. The primary malicious URL, https://ttraff.me/wix?keyword=convict+lake+weather+report, is likely used to redirect the user to a further malicious destination. The presence of numerous PDF links suggests an attempt to manipulate search engine results or distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.me/wix?keyword=convict+lake+weather+report
    • https://static.usrfiles.com/ugd/97368a_569b13537051401c8739c575e514f84a.pdf
    • https://static.usrfiles.com/ugd/1fa6dd_06ddbfd3176d4c89916bd7f6d246d105.pdf
    • https://static.usrfiles.com/ugd/c1de29_252b907da6d94d418d48124d5aed36f2.pdf
    • https://static.usrfiles.com/ugd/8e9e2f_eb5e7af457e84b8a999248937a783b5c.pdf
    • https://static.usrfiles.com/ugd/b8c837_bc34b97dcaa74938b16abff6b346559c.pdf
    • https://static.usrfiles.com/ugd/6290de_6789a9712d284f0799d66eaab8e3f58d.pdf
    • https://static.usrfiles.com/ugd/3615fb_d371d7cec2c947628ba925ccd1ee6d94.pdf
    • https://static.usrfiles.com/ugd/f1780b_fe68f57fd3674b92a20c00ae21127101.pdf
    • https://cdn.shopify.com/s/files/1/0431/4615/0039/files/39265732779.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/38466120922.pdf
    • https://cdn.shopify.com/s/files/1/0437/6684/1505/files/bahubali_2_full_movie_free_tamilrockers.pdf
    • https://cdn.shopify.com/s/files/1/0440/6411/2805/files/vigipip.pdf
    • https://cdn.shopify.com/s/files/1/0432/7433/8454/files/fujamoni.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/kathi_villain_theme_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/3128/1312/files/84599725572.pdf
    • https://cdn.shopify.com/s/files/1/0434/5603/7017/files/que_son_factores_bioticos_y_abioticos.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_off0000668e.bin
206b77679e5cefa5b244086e7f69630d6fe808d4998ffb90cdfbb14bef078dac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x668E 4964 bytes
font_01_sfnt_off00007783.bin
636e08b3b55b056a8f9cf9eadfd112a3455e232d09679fd74539a808ab490e1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7783 10820 bytes

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