Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8c66995cb6b5271…

MALICIOUS

PDF

42.5 KB Created: 2020-09-02 09:21:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ca541dfbb273dc09f3f78b5365ebb61c SHA-1: ed31481939a6376dff7c69153d7e26f088328b52 SHA-256: d8c66995cb6b527128dfd0f329da56147efedc83ec428c3fa89360eaee9680eb
168 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.club'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The presence of a 'password-protected archive lure' heuristic and a 'download button' heuristic suggests the document is designed to trick the user into downloading and potentially decrypting a malicious payload. The document body contains a URL that matches the malicious redirector.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.club/wix?keyword=software+adobe+audition+bagas31
    • https://cdn.shopify.com/s/files/1/0430/3041/3475/files/vitagujumosidudejijixuv.pdf
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/dadibanonegasip.pdf
    • https://cdn.shopify.com/s/files/1/0432/2269/6098/files/weziwoxuxuxipexojo.pdf
    • https://static.usrfiles.com/ugd/0adedf_0e25e07b6aab42aab9dc81d2951cc662.pdf
    • https://static.usrfiles.com/ugd/d017d5_c1afef0ffa544a79a48442e8e5110a2e.pdf
    • https://static.usrfiles.com/ugd/9cc572_e3e42f034f31497b9314ad4e13c647a8.pdf
    • https://cdn.shopify.com/s/files/1/0462/2109/9162/files/free_christian_violin_sheet_music_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0430/8058/1274/files/donojimukitesagevuni.pdf
    • https://cdn.shopify.com/s/files/1/0435/4654/2229/files/zifirasizizuxaxixududodim.pdf
    • https://cdn.shopify.com/s/files/1/0438/9657/0024/files/89574814368.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_off00005fc7.bin
1502eba891b9fdff5168fa988f9313d9bb0454f72fffb8c67115f0ac1c16bd58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC7 5596 bytes
font_01_sfnt_off000072f9.bin
d1cfa6ba21ff2e98683ae0b91087ebe89bc62632c22433401a6eeb7296ad1586		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72F9 13416 bytes

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