Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dd333fd9e0d5c10…

MALICIOUS

PDF

33.5 KB Created: 2021-06-27 03:45:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 1c3b6ec63a30b6261078ecfe22f76ace SHA-1: 240f9d9175f990ed1e56325604eb5044b1e2155c SHA-256: 2dd333fd9e0d5c1062e293a238da76300051397024e41dd7583fd5cf04eecbb7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one to a known malicious redirector at http://netcdn.co/app/431946152/me-hackearon-roblox-game-hack. The document body and embedded links suggest a lure related to game hacks and currency, a common tactic for phishing or malware distribution. The presence of embedded URLs and the nature of the lures strongly indicate a malicious intent to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/me-hackearon-roblox-game-hack In PDF document text
    • https://www.tena-g.hr/files/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-drop-master-free_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/roblox-hack-iosgods_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://www.tena-g.hr/files/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • https://www.tena-g.hr/files/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-roblox-money_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://www.tena-g.hr/files/how-to-get-more-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-gift-hack_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/how-do-you-get-free-robux-2021_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_off00002d97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D97 22064 bytes
SHA-256: dc5c9941c7c34ad1b11ea9b80263a5d9c6bb38808f30b3a141f04bb0dd4e9c3a
font_01_sfnt_off00005e73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E73 18852 bytes
SHA-256: 21488e0001d9ae54580112c8600e7b0b01091f8a0fec7065477ac8afe7b9d0c3

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