Malicious PDF — malware analysis report

Static analysis result for SHA-256 c27e445f686bb78a…

MALICIOUS

PDF

54.1 KB Created: 2020-08-08 03:18:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8301bc235adb6061b4657627de57809d SHA-1: e6857802ce0b928b656332594c8be933750b4b38 SHA-256: c27e445f686bb78a0bf49d940b7b289639aa43ed5c6ff2b7f515f1c9668ddcf6
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link to 'ttraff.cc' is identified as a malicious redirector. This suggests the document is part of an SEO link farm or phishing campaign designed to redirect users to malicious sites. The presence of the malicious redirector and the sheer volume of links indicate a high likelihood of malicious intent.

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=arthur+rimbaud+les+illuminations+pdf
    • http://files.tcspringtraining.com/uploads/1/3/1/0/131069968/lirijo-jojemuxixupom-suxugasonojolud-vopiwajuwuvumoj.pdf
    • http://files.projecteva.org/uploads/1/3/0/7/130776401/9066253.pdf
    • http://files.centralcoastna.org/uploads/1/3/1/0/131070820/4356106.pdf
    • http://files.leguesepticservices.com/uploads/1/3/1/3/131384424/zebaxi-wevudufi-niruwatejis.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3980/files/94525824407.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/github_markdown_to.pdf
    • https://cdn.shopify.com/s/files/1/0430/3775/3501/files/piladiwutiverogaziwupod.pdf
    • https://cdn.shopify.com/s/files/1/0431/6971/0242/files/determination_of_calorific_value_of_fuel.pdf
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/woxuwuvoximegixive.pdf
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/sidadagekuwujezu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7783/6702/files/fixukogunapepasevuvevefej.pdf
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/vaxitaboro.pdf
    • https://cdn.shopify.com/s/files/1/0443/4313/2316/files/cello_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/3013/4427/files/semonovigu.pdf
    • https://cdn.shopify.com/s/files/1/0438/9679/9384/files/banak.pdf
    • https://cdn.shopify.com/s/files/1/0435/3903/8359/files/cash_flow_statement_project_report.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_off00009662.bin
c0f5f78be1e8f1a18fe27918ccc9fbcbbe28dfd4e8d034da54cbbb73b2f74abd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9662 5412 bytes
font_01_sfnt_off0000a890.bin
e508ac8bd122cf53cc3747fe99c5e532adf48591e110e1a9d14fbb5432730e67		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA890 10300 bytes

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