Malicious PDF — malware analysis report

Static analysis result for SHA-256 66acda88475ee3bd…

MALICIOUS

PDF

35.1 KB Created: 2021-06-19 02:08:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 7a0c080cf14a2e82fcb3218f7597efd1 SHA-1: 79d58f0d7d21de6c943e9571574748d926845f7b SHA-256: 66acda88475ee3bd5c96b6294c0639b9a11b88de735402925269cc229dced6f7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links, including one pointing to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/comment-avoir-de-l'argent-hack-sur-roblox-game-hack. Additionally, it links to raw IP addresses such as http://103.40.122.33/akasia/repository/coin-master-free-spin-and-coin_GM406889139.pdf, which is a common tactic for distributing malicious payloads or phishing pages. The document body and embedded URLs suggest a lure related to game hacks and free currency, indicating a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 http://netcdn.co/app/431946152/comment-avoir-de-l In PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-free-spin-and-coin_GM406889139.pdfPDF link annotation
    • http://103.40.122.33/akasia/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-roblox-accounts-with-bc-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/100-working-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-robux-roblox-generator_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-free-builders-club-hack-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-hack-people-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-coffre-vesteria-free-weekend_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/pastebincom-get-free-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/sentinel-hack-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/ahjefhz-roblox-hack_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-full-version-free-download-apk_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-pc-hack-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3068 22408 bytes
SHA-256: 805c83fae262f5a61ad1dd1df33d796c2fc645bffe0d969a06108dc351955c52
font_01_sfnt_off00006274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6274 19624 bytes
SHA-256: 89603903c5f79e4aee5ed4f9b5bc65d44d372090f6f45bbb2302f9cd07a2a945

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