Malicious PDF — malware analysis report

Static analysis result for SHA-256 559c2d2ae666b704…

MALICIOUS

PDF

34.3 KB Created: 2020-08-30 02:53:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c4a6dbac0e3c6d8bded6a28c3f0bf81 SHA-1: f92224f1e4585ad3b3ed2d873ba18107f11191ca SHA-256: 559c2d2ae666b704fcc41f66270801f429250465ec0461a08c9ca9c21892551f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to PDF files hosted on shopify.com. One of these links, however, directs to 'ttraff.com', which is identified as a known malicious redirector. This suggests the document is part of a link farm designed to lure users to malicious sites, likely for phishing or malware distribution.

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/wix?keyword=nfs+2+t%25C3%25BCrk%25C3%25A7e+yama
    • https://cdn.shopify.com/s/files/1/0431/4896/8090/files/worksheet_enough_too.pdf
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/fepolaziworolig.pdf
    • https://cdn.shopify.com/s/files/1/0440/3567/0166/files/26012153928.pdf
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/69476511709.pdf
    • https://cdn.shopify.com/s/files/1/0439/8927/0686/files/top_augmented_reality_apps_android.pdf
    • https://static.usrfiles.com/ugd/b8c837_853327562298494eaa99db4a50b10a37.pdf
    • https://static.usrfiles.com/ugd/b8c837_b7567d631f994d1c92a30438b87d2f49.pdf
    • https://static.usrfiles.com/ugd/b8c837_6750a3ee64b34a2597d692cbba752b09.pdf
    • https://static.usrfiles.com/ugd/b8c837_165909e2bd984fe8a5d4d9948cac662a.pdf
    • https://cdn.shopify.com/s/files/1/0461/7161/9491/files/21462867042.pdf
    • https://cdn.shopify.com/s/files/1/0433/8437/3409/files/cute_baby_boy_images_hd.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/elements_of_information_theory_solution_manual.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_off00004526.bin
2d65360e6914c147782146554a7c596a16c63e7fefb54fc1f23c700151ba420d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4526 5452 bytes
font_01_sfnt_off00005772.bin
0f9c2a5b7ca6a684430c59e1756fe8cf260083d9af05f785e64597b11615e4c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5772 11560 bytes

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