Malicious PDF — malware analysis report

Static analysis result for SHA-256 236e01a6ea206622…

MALICIOUS

PDF

51.5 KB Created: 2020-08-01 22:28:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 17dfadcf8aaa89c098e1058450aed9ce SHA-1: 0911df8cb57ac36a650de7f87c4fd0422e541e0d SHA-256: 236e01a6ea206622c2e087a7846bdbea15003b64a9efafbf6ca50619ca4b58af
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 'https://ttraff.com/pify?keyword=mp3+host+direct+link'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The presence of a 'download button' lure further supports a malicious intent to redirect the user to a potentially harmful site.

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=mp3+host+direct+link
    • http://files.esthersurikova.com/uploads/1/3/1/6/131606861/2cd2f0.pdf
    • http://files.pamela-gray.com/uploads/1/3/0/8/130813781/tovomezezusipu.pdf
    • http://files.marchingchiefs5k.com/uploads/1/3/0/8/130874379/8982308.pdf
    • http://files.findyourmagichsp.com/uploads/1/3/1/3/131384185/siximurunura.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/telasewebikum.pdf
    • https://cdn.shopify.com/s/files/1/0436/0349/3028/files/71513701159.pdf
    • https://cdn.shopify.com/s/files/1/0434/3067/4597/files/12061185249.pdf
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/62843393548.pdf
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/53276229746.pdf
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/28745218544.pdf
    • https://cdn.shopify.com/s/files/1/0433/3145/3081/files/80237674454.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/16928505969.pdf
    • https://cdn.shopify.com/s/files/1/0431/6125/6091/files/29556809553.pdf
    • https://cdn.shopify.com/s/files/1/0432/9730/8840/files/36657768559.pdf
    • https://cdn.shopify.com/s/files/1/0431/4939/4080/files/84001506291.pdf
    • https://cdn.shopify.com/s/files/1/0431/7007/0690/files/13125436224.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dazexirorojukulovamedifuv.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_off00007554.bin
6eacb92b54c3a79bfeecf4724cf7df4815d9ec2cfea103e1b9b20b8f6fe6fd0e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7554 5184 bytes
font_01_sfnt_off000086fd.bin
92d41fdf60e6099a8b49b5aece5b6f583d5c2da288bfc347bce21196572e27da
pdf-font-stream PDF embedded font (sfnt) at offset 0x86FD 10352 bytes
font_02_sfnt_off0000aaa5.bin
14cb1cad40a74d1d86f44c2ced91bf036090f5f6a4aa1227e7c0659877b93e7f
pdf-font-stream PDF embedded font (sfnt) at offset 0xAAA5 16500 bytes