Malicious PDF — malware analysis report

Static analysis result for SHA-256 7560dd45e5dfd99c…

MALICIOUS

PDF

89.0 KB Created: 2020-08-22 00:01:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b144085bfe40525b2a737b39b8f42ca4 SHA-1: 389edbad05909a126fe7c923441cb34c0f96d38a SHA-256: 7560dd45e5dfd99c3ab1414ec2b5cb5b26b6c40f2abfded24a1203cdfbf58fcb
150 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a 'Head line palm reading guide'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the embedded URL, https://ttraff.com/pify?keyword=head+line+palm+reading+guide, leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic suggests the document is part of a link farm, with many external links, including one to cdn.shopify.com. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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/pify?keyword=head+line+palm+reading+guide
    • http://files.duckinn.co.uk/uploads/1/3/1/3/131380504/339f4e5ffbc990.pdf
    • https://cdn.shopify.com/s/files/1/0440/6837/2632/files/extract_ova_file.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/warnock_hersey_pellet_stove.pdf
    • https://cdn.shopify.com/s/files/1/0431/2190/1729/files/damodaran_corporate_finance_theory_and_practice.pdf
    • https://cdn.shopify.com/s/files/1/0429/4931/2665/files/barley_and_biltong_menu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9801/3850/files/84923538556.pdf
    • https://cdn.shopify.com/s/files/1/0427/4972/2790/files/gugigisimoganil.pdf
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/logexofijogogonipuwozija.pdf
    • https://cdn.shopify.com/s/files/1/0432/8731/4590/files/24138671143.pdf
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/georgie_boy_motorhome_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0463/6396/7643/files/android_access_root_folder_file.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_off000123a3.bin
8385dbbf0c18599f1a0170834a9b1a370e568af24d7af2b8a3e63ce5ec7a3dae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123A3 5060 bytes
font_01_sfnt_off000134b5.bin
fed00098aef5e2947480c0bc2f229c6e0f65e250248092f2cdb60d7c404ac367		 pdf-font-stream PDF embedded font (sfnt) at offset 0x134B5 10104 bytes

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