Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b4f13ecafd4560f…

MALICIOUS

PDF

39.7 KB Created: 2020-09-18 05:17:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30dfb40c78e451b60f1833cafc79191f SHA-1: 51342e69c935dcc2c3e304c7298c0922526be0fa SHA-256: 9b4f13ecafd4560f0b0284bebb661cd96ec26a75a598f6861ca20b397ef7515d
130 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.me', which is associated with the lure 'whitepages premium cracked apk'. This indicates a social engineering attempt to trick users into visiting a potentially malicious site. The document also contains a large number of embedded links, many of which are benign, but the presence of the malicious redirector is the primary indicator of compromise. No scripts were extracted from this sample.

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.me/wix?keyword=whitepages+premium+cracked+apk
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/crystal_reports_9_tutorial_en_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0433/3849/8198/files/13300367182.pdf
    • https://cdn.shopify.com/s/files/1/0428/8249/8716/files/vipexuzo.pdf
    • https://ab5565d2-800b-44c7-a584-38117cf0138b.filesusr.com/ugd/90423f_95cc2c4913b74d62b51e4ab131b46620.pdf?index=true
    • https://7996fda4-7a88-4988-af27-ceb255973263.filesusr.com/ugd/c33f71_5173bb15bd9547168eeb84f0a59d9c75.pdf?index=true
    • https://4ce29a63-c663-4604-b18d-1669b3e37eb7.filesusr.com/ugd/d31907_21c00fb820a64bf9846a5c6e1771c018.pdf?index=true
    • https://dcbdcef6-cbaf-4fea-9aa4-f34b489df5c7.filesusr.com/ugd/f6a907_ee2a824279504df3babffef444e4912c.pdf?index=true
    • https://1d4e4991-13df-4a42-a78e-248a6027ec1c.filesusr.com/ugd/4c7633_7bb80f0b747045f1a670ad1f907a4eed.pdf?index=true
    • https://dca47d51-590a-426c-846c-6212a50484be.filesusr.com/ugd/8ce377_83b7f1ebd5b8497c88eee5d746452021.pdf?index=true
    • https://3d36fa51-eec3-4dba-b34b-f626a7d089f5.filesusr.com/ugd/0d018b_7bb6d7c2a4aa4de4bcbaaa55fc033c02.pdf?index=true
    • https://0c25df7a-85a0-4c39-8e0f-981fcf1f6560.filesusr.com/ugd/b81754_6345f697d9504a37b9cf92ef87e4dc4b.pdf?index=true
    • 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_off00005c51.bin
6d63042b36c3aa132717096a4f0c5f85b26f1aa16780d6638c9236dbc087175e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C51 5532 bytes
font_01_sfnt_off00006f07.bin
e7edcf4cc647dde63325b1ac5de02371e20b974d5f60370e94981d88fbf3dcaa
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F07 10424 bytes