Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2488876c357eaa6…

MALICIOUS

PDF

32.6 KB Created: 2021-06-21 01:15:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 16d1890204c86d31a6cc74b326ffeb65 SHA-1: 1ddac467f8601fc5e30842806e707d61b3bfd4fc SHA-256: d2488876c357eaa6e2e62da628c38c6fa40afa66480c5d691c14a35fa9abc67c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/outfits-roblox-free-game-hack. The document body and heuristics indicate a lure for game-related hacks or generators, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure point towards a malicious redirection workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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.
  • 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/outfits-roblox-free-game-hack In PDF document text
    • https://miraller.com/upload/files/coin-master-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • https://miraller.com/upload/files/secret-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://miraller.com/upload/files/roblox-robux-hack-generator-2021_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/300-roblox-accounts-free-v34m_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • https://miraller.com/upload/files/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://miraller.com/upload/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/mad-city-roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://miraller.com/upload/files/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://miraller.com/upload/files/free-robux-card-5-million_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/roblox-robux-hack-generator-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/pokemon-go-free-android-download_GM1094591345.pdfIn PDF document text
    • https://miraller.com/upload/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://miraller.com/upload/files/roblox-rush-com-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A56 21956 bytes
SHA-256: 38adebfce889a1247b4f6df9e7d057c93bbc0c8f90d55f0f9c6e7117499f0740
font_01_sfnt_off00005ad2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD2 19012 bytes
SHA-256: c4158b2f9bfcd189aba6f969fb7235781273475810c642539c9520276381b307

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