Malicious PDF — malware analysis report

Static analysis result for SHA-256 cddac41dd2a02e11…

MALICIOUS

PDF

43.9 KB Created: 2020-10-05 05:56:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81505524e0379245ee685be4600b7ec1 SHA-1: 17b01a416ad246ab7753acc26555f2b62dedc1fe SHA-256: cddac41dd2a02e11ee2fca3c66253283bb9330c9e6d85a1e37ecfbb29540e93a
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of external links, including one pointing to a known malicious redirector at 'ttraff.cc'. This suggests a link farm or redirection attack designed to funnel users to potentially harmful sites. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=australian+media+landscape+2019', reinforcing the malicious redirection finding. No scripts were extracted, and the family is unknown.

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.cc/pify?keyword=australian+media+landscape+2019
    • https://uploads.strikinglycdn.com/files/3bcfbdf7-31ed-4893-9a2e-8095bfd5d8d2/16794568297.pdf
    • https://uploads.strikinglycdn.com/files/f8d7e6c2-36c5-4958-b8ff-793c5d878cfc/zopamosim.pdf
    • https://uploads.strikinglycdn.com/files/a8d73801-2d14-44c1-92da-a9256b170942/rawifuxusojekezez.pdf
    • https://cdn.shopify.com/s/files/1/0430/6318/1473/files/17010354447.pdf
    • https://cdn.shopify.com/s/files/1/0496/1668/3171/files/west_warwick_school_calendar.pdf
    • https://cdn.shopify.com/s/files/1/0433/9879/1322/files/play_script_format_word.pdf
    • https://uploads.strikinglycdn.com/files/7a7de1c4-82fe-4004-8b62-8549c49830c8/67970538211.pdf
    • https://uploads.strikinglycdn.com/files/dea35cc8-f135-467b-9fdf-2a26e5130b1a/dilofudupifusede.pdf
    • https://uploads.strikinglycdn.com/files/1c523490-2141-4e31-ade3-1b70b6d61155/88579302716.pdf
    • https://uploads.strikinglycdn.com/files/0eb0e371-6171-4886-bbb6-563c52b5e4be/36163154200.pdf
    • https://uploads.strikinglycdn.com/files/0fa92533-65bf-46ab-9976-0b998ce9d546/31082374761.pdf
    • https://uploads.strikinglycdn.com/files/bd96cccc-6913-4253-88ab-a69478af5480/49770030946.pdf
    • https://uploads.strikinglycdn.com/files/098ea363-5a9b-4d1b-8844-f0d1e0d578be/puruduvusamev.pdf
    • https://uploads.strikinglycdn.com/files/1e3dc434-55a3-4061-b2fd-05f61aee980d/falimaneje.pdf
    • https://uploads.strikinglycdn.com/files/f2d97a46-3e10-44d2-a64d-56d9f95ba07a/pamotirebej.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/
    • https://uploads.strikinglycdn.com/files/3bcfbdf7-31ed-4893-

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cd5.bin
ee70a8d074e48cd069e44e1b22a61b668325db6056493145f753bbdcc89d1faf
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD5 5692 bytes
font_01_sfnt_off0000801a.bin
4ace68d9b1fd1b9d85d7f566c92d19506fb6bd8381e8db7bd8e14c05e5770b7b
pdf-font-stream PDF embedded font (sfnt) at offset 0x801A 10028 bytes