Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2f0fc48f06b73f7…

MALICIOUS

PDF

38.9 KB Created: 2020-09-08 14:03:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00176a9b413eecc5adc856092a3a5a40 SHA-1: 7b117a87badaf6f57e90dc4788bb81dc49028300 SHA-256: d2f0fc48f06b73f75c7de200b1485912b5f76af9f1a3d2a823f349b20062fdc2
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This link is presented within the document body, disguised as a compliance report, to entice users to click. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many hosted on Shopify, though the primary malicious link is to ttraff.com.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/wix?keyword=compliance+internal+audit+report
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/caboolture_train_line.pdf
    • https://cdn.shopify.com/s/files/1/0432/2154/9217/files/55732937470.pdf
    • https://cdn.shopify.com/s/files/1/0431/9277/8912/files/6623967455.pdf
    • https://static.usrfiles.com/ugd/1df9ea_84ec78d0fbae4e12ad118f1e367f9449.pdf
    • https://static.usrfiles.com/ugd/7ff653_297483a109234474bfed19694e889d90.pdf
    • https://cdn.shopify.com/s/files/1/0430/1435/7145/files/38425890283.pdf
    • https://cdn.shopify.com/s/files/1/0427/6148/6503/files/24763628446.pdf
    • https://cdn.shopify.com/s/files/1/0434/5397/2633/files/44714804267.pdf
    • https://cdn.shopify.com/s/files/1/0432/1676/5087/files/55989516462.pdf
    • https://cdn.shopify.com/s/files/1/0431/4356/1376/files/61437877939.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_off00005b85.bin
8b089c96e826a1d9ac377aa54babaf932245fdeef3a3396b01ced6b686f2c5d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B85 4948 bytes
font_01_sfnt_off00006c39.bin
e36657895ed09289a46ef93c0a6da1400c6c64fb31bda5210476867da644b092
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C39 10336 bytes