Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddef16941a1fc73e…

MALICIOUS

PDF

36.5 KB Created: 2020-08-17 04:17:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 665c7534eb23ccbd2c03f21e97f33af6 SHA-1: ce9777107690ff480d3714fbec1dab264e8beaa6 SHA-256: ddef16941a1fc73e6425947ae17d9944fbfc7e588e0a382b87c21d98889b1261
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a link that redirects to a known malicious domain, disguised as an inspection report. The PDF also contains a large number of external links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is ttraff.com, which is used to redirect the user to further malicious content.

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=dyce+primary+school+inspection+report
    • http://files.canalstreetboxinggym.com/uploads/1/3/1/4/131483027/0a494e56f.pdf
    • http://vuwotuz.e2bioconsults.com/uploads/1/3/1/4/131437363/bonesuk-vujalapeluwudi-degavoxijusa.pdf
    • https://cdn.shopify.com/s/files/1/0430/8140/0469/files/gaxuxowekagitatogot.pdf
    • https://cdn.shopify.com/s/files/1/0428/8705/3475/files/pafokonidusisogagelexi.pdf
    • https://cdn.shopify.com/s/files/1/0438/3516/2784/files/boralonudokozijafexi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5649/6791/files/gudusivimafuwonilekujibev.pdf
    • https://cdn.shopify.com/s/files/1/0432/6529/4504/files/arduino_mega_2560_r2_schematic.pdf
    • https://cdn.shopify.com/s/files/1/0433/9263/0940/files/nbte_curriculum_for_business_administration.pdf
    • https://cdn.shopify.com/s/files/1/0439/4798/3006/files/52194897081.pdf
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/japanese_candlestick_cheat_sheet_download.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_off0000450f.bin
ac3372c49b20b9b0015773b6fb9792406952da387bca758a8667a84e14e27062		 pdf-font-stream PDF embedded font (sfnt) at offset 0x450F 5060 bytes
font_01_sfnt_off0000561c.bin
6f903073d5c4da59412205291161193a11a9bf6298044e1dbea01aa87b806412		 pdf-font-stream PDF embedded font (sfnt) at offset 0x561C 9636 bytes
font_02_sfnt_off00007717.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7717 4324 bytes

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