Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fc57689611731e1…

MALICIOUS

PDF

60.3 KB Created: 2020-08-30 01:56:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffbb80bdfed66f80f883ba6312b1aa54 SHA-1: 4919d3696a435908f1e5686438ce6223e35c5877 SHA-256: 1fc57689611731e177583c5077e50eb318d2302fef731b1a05c6e8ce60417739
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. The primary attack pattern involves luring the user to a malicious site via the embedded link.

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=henri+lefebvre+critique+of+everyday+life
    • https://static.usrfiles.com/ugd/9374a7_449ab8b944664221bb5bc781e0ec14ae.pdf
    • https://static.usrfiles.com/ugd/b88e3d_3d456096347941c794985b89514bd9f9.pdf
    • https://static.usrfiles.com/ugd/5de1df_3443be3c8c1a4dcc97aed5f36b46a10f.pdf
    • https://cdn.shopify.com/s/files/1/0433/3545/0774/files/askeland_3_edicion.pdf
    • https://cdn.shopify.com/s/files/1/0430/1229/2767/files/creative_audio_control_panel.pdf
    • https://cdn.shopify.com/s/files/1/0437/4649/2565/files/mawewobovexuzo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8797/8913/files/xunagoxigasowatizil.pdf
    • https://cdn.shopify.com/s/files/1/0443/0499/0364/files/solar_irrigation_system_project.pdf
    • https://static.usrfiles.com/ugd/b8c837_e60a3f6fed6a4e6895ae32bda2748de4.pdf
    • https://static.usrfiles.com/ugd/b8c837_f69efc7993d64722bb3375252cf638f6.pdf
    • https://static.usrfiles.com/ugd/ade4e6_e4d0957c2c47493eb534530d5fb46246.pdf
    • https://static.usrfiles.com/ugd/b8c837_f1b405fb8ba84b7eadd8756f7b612aad.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb535a3769be4c5fbdc1600a9f909bca.pdf
    • https://static.usrfiles.com/ugd/9757e7_51bc50c66b5a4567a40a2efd1a316ef8.pdf
    • https://static.usrfiles.com/ugd/73cb9e_8c7b5cc3a5994690bf7ada434dab514e.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_off0000aa1a.bin
12fb75d2ed48a5754c519638f8134cb019ecd4d4930c0547c023029e9c850323		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA1A 5228 bytes
font_01_sfnt_off0000bbeb.bin
0b223f66640cbe8c9aa465cc24e501fca2de0862168dd9a447be4379203576a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBBEB 12584 bytes

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