Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e96f1fad5cfbefa…

MALICIOUS

PDF

41.8 KB Created: 2020-09-03 19:32:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2b2d90ef70830c27ce747248fee1f576 SHA-1: 2590aba1f43edbaa2a54679a15647f5f57d79dc5 SHA-256: 1e96f1fad5cfbefaf225f94efc20f354becf84abf4caaf0cce1aef22ebee7378
130 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, contains text related to 'Clash Royale PC Free' and a call-to-action phrase, suggesting a lure for a fake download. The presence of a PDF link farm heuristic further indicates a malicious intent to distribute links.

Heuristics 4

  • 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.
  • 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=clash+royale+pc+free
    • https://cdn.shopify.com/s/files/1/0459/5443/3183/files/35695519163.pdf
    • https://cdn.shopify.com/s/files/1/0431/1741/2501/files/39638946883.pdf
    • https://cdn.shopify.com/s/files/1/0433/4908/2264/files/59459287765.pdf
    • https://cdn.shopify.com/s/files/1/0430/6809/6661/files/38836617418.pdf
    • https://static.usrfiles.com/ugd/bf650e_a40aae3a4dba4d02982ae97e30459c00.pdf
    • https://static.usrfiles.com/ugd/7ef0dc_082c04b646a745199af6a5478468f054.pdf
    • https://static.usrfiles.com/ugd/c162b3_cae8308c632249d08a7f90606390ee6f.pdf
    • https://static.usrfiles.com/ugd/de02f3_a33709851f34458fa867d81d8b405538.pdf
    • https://static.usrfiles.com/ugd/739437_db439b14f61740f38ccfb607935b87c3.pdf
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/13227082999.pdf
    • https://cdn.shopify.com/s/files/1/0433/3548/3551/files/35738097977.pdf
    • https://cdn.shopify.com/s/files/1/0440/3943/8486/files/gafekebofupifokusoko.pdf
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/28216655063.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5460/files/important_days_and_dates_in_a_year.pdf
    • https://cdn.shopify.com/s/files/1/0428/5041/8847/files/refikasatuvidugarupudobof.pdf
    • https://cdn.shopify.com/s/files/1/0432/7853/2758/files/96174289176.pdf
    • https://cdn.shopify.com/s/files/1/0436/1512/5661/files/13451150889.pdf
    • https://cdn.shopify.com/s/files/1/0447/8251/8421/files/swedish_language_book.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_off00006578.bin
a1b11b54202773dc3cad7cae7f80fa559ec69f3264a775a6c9df4ae91a5f3937
pdf-font-stream PDF embedded font (sfnt) at offset 0x6578 5112 bytes
font_01_sfnt_off000076de.bin
00f32ccc60665ee4f03854cf6702d90a68f89b59d196ddfa5859980b43c10e94
pdf-font-stream PDF embedded font (sfnt) at offset 0x76DE 10448 bytes