Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb089912351d3fc3…

MALICIOUS

PDF

45.3 KB Created: 2020-09-01 01:49:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fd4be194b7c12948b2e83949fa0e2c8a SHA-1: 946b9e1e921f0163687f7d80ac119742a67217ed SHA-256: bb089912351d3fc35191709bd8a162292f7fb8f9c9296d512c56ffa8cebd0b2e
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as a 'floor plan template photoshop' download. This link, https://ttraff.ru/wix?keyword=floor+plan+template+photoshop, is the primary indicator of malicious intent. The PDF also hosts a link farm, suggesting an attempt to manipulate search engine results or distribute content widely. No scripts were extracted, but the presence of a malicious redirector and the lure of a download indicate a phishing or scam attempt.

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.ru/wix?keyword=floor+plan+template+photoshop
    • https://cdn.shopify.com/s/files/1/0429/3437/0470/files/32834237031.pdf
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/59867262731.pdf
    • https://cdn.shopify.com/s/files/1/0433/1533/1227/files/923103327.pdf
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/wororelesawoso.pdf
    • https://cdn.shopify.com/s/files/1/0433/4642/8062/files/kizetedanomubiloxapajudom.pdf
    • https://static.usrfiles.com/ugd/b8c837_46d972a85079444a92cd9a6f3a5751af.pdf
    • https://static.usrfiles.com/ugd/5b9365_dce9edd8fb3d4130a5b44ff5605655b2.pdf
    • https://static.usrfiles.com/ugd/b8c837_574478db8c164d8684529770df75ca34.pdf
    • https://static.usrfiles.com/ugd/c63dba_c09dcd5c38634f51a2205aae5cf2030b.pdf
    • https://static.usrfiles.com/ugd/b8c837_2144100e9be34a09ba9a82ea531e3fca.pdf
    • https://static.usrfiles.com/ugd/b8c837_a96b875d3fe74cd9ab0b1ddf13894269.pdf
    • https://static.usrfiles.com/ugd/99965f_1bee83a6f93b4024a421c9633f39443d.pdf
    • https://static.usrfiles.com/ugd/9c43ec_a00aad913b604d25a29b3e19558bc1a8.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_off0000759c.bin
54595c7f1dd2b9a10bd8804768586e087605b7738db93e38571ed6c8700372bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x759C 5012 bytes
font_01_sfnt_off00008677.bin
9409b7d584936fe1cadb9b1eededb6a4357cede9dca9debfc8b2e40f1583487f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8677 10000 bytes

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