Malicious PDF — malware analysis report

Static analysis result for SHA-256 33becbeaa219ab33…

MALICIOUS

PDF

49.8 KB Created: 2020-09-02 04:58:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01e56bb96677bde2c1e302709a23acff SHA-1: 9f9a5a662f62abef7641e85b66eaac7e2d117c06 SHA-256: 33becbeaa219ab3370b90af8dacaa46a06d68cd871a9ccda79871dc271680ace
168 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wix?keyword=carthage+update+platform+ios+command'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, some hosted on Shopify. The presence of a 'low' severity heuristic for a download button lure and a 'high' severity heuristic for a password-protected archive lure suggests a social engineering attempt to trick the user into downloading and opening further malicious content. No scripts were extracted from this sample.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=carthage+update+platform+ios+command
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/kikizosavitoxetanezukal.pdf
    • https://cdn.shopify.com/s/files/1/0428/0903/2863/files/67819149881.pdf
    • https://cdn.shopify.com/s/files/1/0428/6211/7023/files/sudosewimadapuvesukes.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0558/files/72421252279.pdf
    • https://cdn.shopify.com/s/files/1/0428/4927/1975/files/3631431984.pdf
    • https://static.usrfiles.com/ugd/197ed4_fc947f36521647b886f3e4d5f563668d.pdf
    • https://static.usrfiles.com/ugd/68ec51_cd0ce2d0e30b4e0ea0d04e135a721a8f.pdf
    • https://static.usrfiles.com/ugd/10a4aa_117f919b74ac4cbb9f17929f1709ef8d.pdf
    • https://static.usrfiles.com/ugd/b8c837_8295da48881c428cb93d8b78ba380479.pdf
    • https://static.usrfiles.com/ugd/b6bf5b_acd87e452a4e4e87959734d8df095ae4.pdf
    • https://static.usrfiles.com/ugd/b8c837_799fc3ec7588419b9818c07b63ee78e6.pdf
    • https://static.usrfiles.com/ugd/b5aed9_eb610761aeb940b8bf86617f02a0e0b7.pdf
    • https://static.usrfiles.com/ugd/b8c837_cd4141fcf85948148f7b269342f39ab0.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_off00007149.bin
5f03d2c6bc08d28d18892b3fd5153044a2fff6aad81dd629dfd07635bf6cf50e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7149 2880 bytes
font_01_sfnt_off00007b86.bin
6f498ccdc98ceb9773a81e2ebe7204871bbb1132dc0d56e923e9e57c4c70599e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B86 5476 bytes
font_02_sfnt_off00008dfc.bin
a052c28b54c2374881102a4b1db399cd3574fa20b795d2e272b36e080d449ffa
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFC 14156 bytes