Malicious PDF — malware analysis report

Static analysis result for SHA-256 24ae6e49529b9149…

MALICIOUS

PDF

47.1 KB Created: 2020-08-19 01:26:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d432dff15b500da64ba083bafc4a114a SHA-1: abce054d49c7b55048f0d3ea5966657a6c839b97 SHA-256: 24ae6e49529b91498a61f71e249340fdf64fe3b399c39557121aa33fec92d775
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains references to the same URL and other URLs hosted on Shopify and various other domains, presented as links to PDF files. This suggests a link farm or redirection scheme designed to lure users to malicious content, likely for phishing or malware distribution.

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.com/pify?keyword=anonymous+pro+font+family+free
    • http://files.jewellhjohnson.com/uploads/1/3/2/8/132816158/252b1d3f634b0.pdf
    • http://files.norcrosspresbyterian.org/uploads/1/3/1/4/131438464/80893bc6a.pdf
    • http://fivesa.cynthiakurklis.com/uploads/1/3/0/9/130969042/7389615.pdf
    • http://files.treeoflifetroupe.org/uploads/1/3/0/7/130739457/0cae1.pdf
    • https://cdn.shopify.com/s/files/1/0431/6859/6117/files/43100304740.pdf
    • https://cdn.shopify.com/s/files/1/0446/8460/7641/files/sagokutoli.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/21226697209.pdf
    • https://cdn.shopify.com/s/files/1/0429/9581/0455/files/44533447275.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nujogopuju.pdf
    • https://cdn.shopify.com/s/files/1/0444/4097/7574/files/fetoxon.pdf
    • https://cdn.shopify.com/s/files/1/0437/7686/8504/files/21285451222.pdf
    • https://cdn.shopify.com/s/files/1/0449/0277/6999/files/cairns_tv_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/beowulf_bangla_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/6404/9318/files/95090214904.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cec.bin
758b8588e7ea13314acbbdd626da7e7b5e18a3bcd6cc617afb07d32b49cc70bf
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CEC 5020 bytes
font_01_sfnt_off00007de5.bin
a94fcef3a6ca62467d5f6dbaa3d5b67f971fec8524bc2e994d97c1aec7625422
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE5 10256 bytes
font_02_sfnt_off0000a117.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xA117 4324 bytes