Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdf994b30adf80d7…

MALICIOUS

PDF

48.0 KB Created: 2020-08-30 11:18:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ea1b7ab6564d5428bd5351225ff3d30 SHA-1: 1e866578e064e7a1647cce4fa6d62622a050add1 SHA-256: cdf994b30adf80d71487f5215d684ecb700a3b48225710561849d8f1c187e6ba
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=clash+of+clans+hile+apk+viyaza'. The document body also contains this URL and references to 'Clash of clans hile apk', suggesting a lure to download potentially malicious content. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, though many resolve to benign Shopify domains.

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.club/wix?keyword=clash+of+clans+hile+apk+viyaza
    • https://cdn.shopify.com/s/files/1/0435/5407/8871/files/podavagovus.pdf
    • https://cdn.shopify.com/s/files/1/0429/1729/8329/files/7852041985.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mavadusuwavofemikedoj.pdf
    • https://static.usrfiles.com/ugd/1849a1_e2b5ee743f77430ab55c192de7a2a066.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c9dc17f58ea457fae53f3754bd9556e.pdf
    • https://static.usrfiles.com/ugd/30e015_116d4676466a45d69689c915656e5af8.pdf
    • https://cdn.shopify.com/s/files/1/0430/3051/1779/files/96990076065.pdf
    • https://cdn.shopify.com/s/files/1/0434/8031/8118/files/artificial_intelligence_examples_applications.pdf
    • https://cdn.shopify.com/s/files/1/0433/8388/1893/files/kareba.pdf
    • https://cdn.shopify.com/s/files/1/0436/3884/9696/files/zobomometa.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b36.bin
030419bc711f8460b53cfa40eb29183087873eda191ac69aae57ecaa94958be6
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B36 5016 bytes
font_01_sfnt_off00006c4a.bin
89afd1c7a4cf5749b1fc1ac040b021416583cf9b65b0c5117ffcadb4a387fe74
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4A 10540 bytes
font_02_sfnt_off00009091.bin
73f6f760a67782f27700c3ed047511a210a1e3765a9cc4fd416c63ff6a2522af
pdf-font-stream PDF embedded font (sfnt) at offset 0x9091 16060 bytes
font_03_sfnt_off0000a524.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xA524 4324 bytes