Malicious PDF — malware analysis report

Static analysis result for SHA-256 e577d4c67541b1e0…

MALICIOUS

PDF

42.3 KB Created: 2020-08-17 04:57:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bba188a588e048818ed2a507ac8470c2 SHA-1: 289c26163708235a42cbee661b2fb4ec507d21a3 SHA-256: e577d4c67541b1e0aa375b53eceb6b4a5a3af7614635fc5cc95059141767f526
140 Risk Score

Malware Insights

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

The PDF contains a lure impersonating a Google Drive notification, directing users to click a link. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates the primary link leads to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic shows the document contains numerous links, likely for SEO poisoning or to obscure the malicious destination. The embedded URL 'https://ttraff.cc/pify?keyword=google+drive+file+without+permission' is a clear indicator of a phishing 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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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.cc/pify?keyword=google+drive+file+without+permission
    • http://files.equicktax.com/uploads/1/3/1/4/131437987/935093.pdf
    • http://files.vistelilabs.com/uploads/1/3/2/7/132741293/b40c6796e.pdf
    • http://files.livinitphotography.com/uploads/1/3/1/4/131482864/e42df844b7d385f.pdf
    • https://cdn.shopify.com/s/files/1/0428/3033/2070/files/lovumaga.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/31525122023.pdf
    • https://cdn.shopify.com/s/files/1/0433/8778/1276/files/piano_chord_chart.pdf
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/2641343852.pdf
    • https://cdn.shopify.com/s/files/1/0432/0054/4931/files/84717375070.pdf
    • https://cdn.shopify.com/s/files/1/0429/6572/9429/files/43924790331.pdf
    • https://cdn.shopify.com/s/files/1/0433/9580/9431/files/10_hp_tecumseh_engine_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/13300588308.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_off00006102.bin
b5f5ba93972001ad7f0f6e251ef2696aa7f7d5ca3c73740fc11323b4ddda401e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6102 5428 bytes
font_01_sfnt_off00007376.bin
8cd818d3907754ded0baa46cdf647513d9df751b42a7f9dc3fafb783a046ddb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7376 13152 bytes

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