Malicious PDF — malware analysis report

Static analysis result for SHA-256 471aa6a786edfeb5…

MALICIOUS

PDF

43.2 KB Created: 2020-08-31 16:53:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3de5a3a17bbe4732fb0382e7ec6bb3fe SHA-1: 5fc8b69d685931894ac989148d606e1bbbc3804d SHA-256: 471aa6a786edfeb5a33afe242c98214501d10ec4482384987ebe8476aca2ae26
128 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, which is also present in the document body. The presence of a 'Download Button' heuristic suggests a social engineering lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify. The primary malicious URL, https://ttraff.cc/wix?keyword=anime+batch+google+drive+sub+indo, is likely intended to redirect the user to malicious content.

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.cc/wix?keyword=anime+batch+google+drive+sub+indo
    • https://cdn.shopify.com/s/files/1/0437/7041/3207/files/atomistique_cours_s1.pdf
    • https://cdn.shopify.com/s/files/1/0435/8520/8483/files/python_print_version.pdf
    • https://cdn.shopify.com/s/files/1/0428/2748/1255/files/65332196937.pdf
    • https://cdn.shopify.com/s/files/1/0429/0491/2031/files/ritarejukadusibiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6918/files/how_to_make_jukebox_minecraft.pdf
    • https://static.usrfiles.com/ugd/b8c837_c3432394b27c49f6849e96a7c898cee8.pdf
    • https://static.usrfiles.com/ugd/d775a9_6f9b5084626747c69367fba93b298b39.pdf
    • https://static.usrfiles.com/ugd/81d6a4_1f03c08749ad41b0a21cbdf3f831a7a8.pdf
    • https://static.usrfiles.com/ugd/02beb7_b99af8f917a04446bf00be82b03cc9de.pdf
    • https://static.usrfiles.com/ugd/b8c837_0211ac8a26b74ddd899207dd28056655.pdf
    • https://cdn.shopify.com/s/files/1/0432/0123/3053/files/pirumawe.pdf
    • https://cdn.shopify.com/s/files/1/0437/5350/4917/files/algebra_2_textbook_online.pdf
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/53078024929.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18491093394.pdf
    • https://cdn.shopify.com/s/files/1/0439/5125/9803/files/fundamentals_of_biochemistry_lehninger.pdf
    • https://cdn.shopify.com/s/files/1/0434/1088/2727/files/vaturaso.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_off00006ad8.bin
af85c275fd03a4f252a745981649f4b408a86de6a3c1995d5b852a0c791b1926
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD8 5540 bytes
font_01_sfnt_off00007d87.bin
2803e538aabfd81522d9b8aba47a76ce54c533f755f4e00653ba5a5590871c0f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D87 10036 bytes