Malicious PDF — malware analysis report

Static analysis result for SHA-256 304c599eae727e21…

MALICIOUS

PDF

125.3 KB Created: 2020-09-21 17:46:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ba763af5d03c7dc292a8e7a0cf66d39 SHA-1: a01d84a96d3b324a75369ed19d2a857813598605 SHA-256: 304c599eae727e2198a35ffbad5d445623a18a885b083b019268db53cf9d51c3
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. This indicates a phishing attempt where the user is tricked into clicking a link that leads to malicious content. The presence of a download button lure further supports this phishing vector.

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/wix?keyword=samsung+vrt+washer+manual
    • https://cdn.shopify.com/s/files/1/0428/9652/3423/files/jspdf_table_example_jsfiddle.pdf
    • https://cdn.shopify.com/s/files/1/0431/5542/3396/files/raxamogarowuxuraxizoloni.pdf
    • https://cdn.shopify.com/s/files/1/0439/4346/1032/files/xikujagafekipomuxedam.pdf
    • https://cdn.shopify.com/s/files/1/0431/4031/7350/files/oligopoly_market_notes.pdf
    • https://cdn.shopify.com/s/files/1/0431/9281/1669/files/minecraft_modding_api.pdf
    • https://cdn.shopify.com/s/files/1/0435/2779/8944/files/94791365306.pdf
    • https://cdn.shopify.com/s/files/1/0431/7914/7430/files/geperuruvitofigujube.pdf
    • https://09418d65-8d0b-4465-9269-200c64d3d7cc.filesusr.com/ugd/6d59ab_664e16c7347a4291926b91b84c7081f6.pdf?index=true
    • https://6f7d7554-a8ac-4951-8f69-fe05643e4761.filesusr.com/ugd/011e4b_19f6af428995474b99f71be9302018f6.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0483/0579/9332/files/zufelaxatefagefujixuteru.pdf
    • https://cdn.shopify.com/s/files/1/0482/7001/6673/files/begich_middle_school_teachers.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9632/files/gakamaniduxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/1488/1433/files/5537787982.pdf
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/dodumefevuxazutixisepuko.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_off00019ac1.bin
30d5260641d9e655b36c42d218edfb85016549e9893f16a8ce47d5ae68023e3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x19AC1 2172 bytes
font_01_sfnt_off0001a46d.bin
6f19ab7b6cbd00955b2755e983a5b61fcf02c2a0bab331687bc4255015efcf8a
pdf-font-stream PDF embedded font (sfnt) at offset 0x1A46D 5352 bytes
font_02_sfnt_off0001b689.bin
10c50ee9f9bf188943be099c9520262967b13818b52a3536742a1c3c728c447a
pdf-font-stream PDF embedded font (sfnt) at offset 0x1B689 15548 bytes