Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc42cc01a79aee0c…

MALICIOUS

PDF

55.4 KB Created: 2020-08-25 03:11:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c58aa3fe0a2d7487d210b2c20800c84 SHA-1: ef4e7c54d022db476ae7d213cf2d569c4639461e SHA-256: fc42cc01a79aee0c3277572519d24f05243c10ad777aa7a3b0a560c1ea76b8c7
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical heuristic identified a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=twin+bed+sheet+size+in+cm', which is likely intended to redirect the user to a malicious site. The presence of multiple embedded URLs and the malicious redirector strongly suggest a phishing or redirection attack.

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=twin+bed+sheet+size+in+cm
    • http://files.nocontractppc.com/uploads/1/3/2/8/132814071/20b4adfaee3.pdf
    • http://files.sathiavanee-veeramoothoo.com/uploads/1/3/1/8/131871891/jidutemepupaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5601/3205/files/64818100511.pdf
    • https://cdn.shopify.com/s/files/1/0434/1514/2567/files/moonlighter_golem_volume.pdf
    • https://cdn.shopify.com/s/files/1/0435/0686/0187/files/pisoladelatodo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7192/2591/files/cascadian_farms_cereal_nutrition_information.pdf
    • https://cdn.shopify.com/s/files/1/0433/7857/3464/files/90838843539.pdf
    • https://cdn.shopify.com/s/files/1/0432/1578/2045/files/android_adaptive_icon_generator_online.pdf
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/furapojovidipufutixomi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2172/8918/files/48916975446.pdf
    • https://cdn.shopify.com/s/files/1/0465/2272/8606/files/concerto_in_f_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/vifesorumegurak.pdf
    • https://cdn.shopify.com/s/files/1/0439/1511/6696/files/89565915833.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_off000088c0.bin
e68d3bdd307d8080677d11e5815fc1330f818d10f2f5147c08006b6e5414ce09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88C0 3008 bytes
font_01_sfnt_off0000936f.bin
0f0391423d407d324d506123e12d34442fb524d2adb7ea50bcfa91981532a8f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x936F 5072 bytes
font_02_sfnt_off0000a49a.bin
331cdc06f3639116334ea41b83e983014d415bd66095adf8f3b4e5970eb2778f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA49A 14384 bytes

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