Malicious PDF — malware analysis report

Static analysis result for SHA-256 36584d9a6b62ba8c…

MALICIOUS

PDF

47.0 KB Created: 2020-08-30 19:01:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d00d4aa71f7faacd92fead8eecffac9 SHA-1: 51f1eeeb7bd1670bcc68118971224e0e6867fb36 SHA-256: 36584d9a6b62ba8c140ced91a370f869c6705c43b6bed9bf771ad6d2c90b463e
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link T1059.003 Command and Scripting Interpreter: Windows Command Shell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm, suggesting SEO poisoning or a similar tactic to attract victims. The document body also contains a lure to copy/paste content into a command-line interface, indicating a potential attempt to trick the user into executing commands. The primary malicious IOC is the redirector URL, which likely leads to a phishing page or malware download.

Heuristics 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/wix?keyword=parashara+light+9.0+free+download+wi
    • https://cdn.shopify.com/s/files/1/0435/2330/9727/files/jojexagogavok.pdf
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/manizawejituxoxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7863/1072/files/39857084429.pdf
    • https://cdn.shopify.com/s/files/1/0458/1182/6854/files/yamaha_r3_2018_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/0486/2374/files/jidar.pdf
    • https://cdn.shopify.com/s/files/1/0459/8779/1015/files/like_box_app.pdf
    • https://static.usrfiles.com/ugd/b8c837_fac4c59fa8104c24828d72295bbfbdf9.pdf
    • https://static.usrfiles.com/ugd/d4a9d6_12f754a303534c2bbc846f7f9b16bf27.pdf
    • https://static.usrfiles.com/ugd/dd4472_e053cb77dd6242c3b8fce3acaabacda9.pdf
    • https://static.usrfiles.com/ugd/b8c837_a21b72bb2cfa43b981a0160bcc6d9be2.pdf
    • https://static.usrfiles.com/ugd/9734e7_9e03250aa4c045e08845735b5b24ad6a.pdf
    • https://static.usrfiles.com/ugd/b8c837_1aa57594e02e441ea95b5da593fdcb4f.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_off00007722.bin
9ceb83641d3e997527a3186dfd01a948dcc89f36cf68e0f231084f8be29b15b7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7722 5592 bytes
font_01_sfnt_off00008a27.bin
5b449de115cf006179c4f8290c9c1857232d299871bec97885ed02ef10a10984
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A27 10896 bytes