Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d8411e99c727c57…

MALICIOUS

PDF

49.6 KB Created: 2020-08-17 15:08:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0980774928802df64221dcfd29f05131 SHA-1: 63780702c85b470c4b6b4767b29bfe5bf66bc695 SHA-256: 4d8411e99c727c5756c01645223d450e8ecd613bceaf71687f6cf0a20727d13d
248 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1059.003 Windows Command Shell

The PDF contains a malicious redirector link pointing to 'ttraff.com' which is associated with a lure for 'windows 7 x64 activator'. The document also contains instructions to disable security software and bypass password protection, indicating an attempt to trick the user into downloading and executing a payload. The presence of a link farm and a download button lure further supports a malicious intent to drive traffic to potentially harmful content.

Heuristics 7

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=windows+7+x64+activator
    • http://files.mitchellclark.com.au/uploads/1/3/0/7/130739831/1610872.pdf
    • http://files.corbett-carolyn-promotion-portfolio-2016-2017.com/uploads/1/3/1/8/131857916/2329285.pdf
    • https://cdn.shopify.com/s/files/1/0448/3910/8770/files/abac_air_compressor_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/8015/5289/files/65588046881.pdf
    • https://cdn.shopify.com/s/files/1/0429/0890/9734/files/bogutofuvewadip.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8639/files/kewobamelobipujolo.pdf
    • https://cdn.shopify.com/s/files/1/0435/0889/1807/files/22936367247.pdf
    • https://cdn.shopify.com/s/files/1/0429/9980/8149/files/abecedario_en_frances.pdf
    • https://cdn.shopify.com/s/files/1/0434/9352/3618/files/sql_server_management_studio_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/3636/8283/files/71188190312.pdf
    • https://cdn.shopify.com/s/files/1/0434/5351/3880/files/amharic_bible_verses.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40323832667.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/81247715233.pdf
    • https://cdn.shopify.com/s/files/1/0430/8231/7975/files/braille_sense_u2_qwerty_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_off000082c5.bin
2aca4bb77fa20aed885fb8815fe03bcdfa17702b8b76ae79777c9c162c5a02f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82C5 5456 bytes
font_01_sfnt_off00009586.bin
e9edfca19815e3ff187ad051b6ad4e2e071d765502d23639586caa46e236cd67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9586 10772 bytes

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