Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3aaa4c7342cb92c…

MALICIOUS

PDF

35.0 KB Created: 2021-07-03 11:43:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 66524de7aeaf834a39833e2fd91e19b8 SHA-1: f60b01ee484d24fc15e4343f691970338b8d5d7a SHA-256: e3aaa4c7342cb92c39e579ad861b2000e836436c60a0eb2d8a2ec03ac7064d11
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free currency, directing users to a suspicious URL. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs further supports a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the overall pattern suggests a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.tw/app/406889139/how-to-get-free-coins-on-coin-master-hack-game-hack PDF link annotation
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/filtering-enabled-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/hacks-roblox-the-streets_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/get-free-hair-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/roblox-hacks-giveaways_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/unpatchable-robux-hack-website_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/advertise-your-roblox-game-for-free_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/how-do-you-get-free-robux-on-roblox-android_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/generator-robux-free-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/roblox-site-hacks_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/coin-master-hack-for-android_GM406889139.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/omfg-roblox-hack-script-nrpg_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-cookie-logger-for-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/robux-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/roblox-prison-life-gui-hacks-pastebin_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/minecraft-java-free-account_GM479516143.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/hacks-for-design-it-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/cheat-engine-bypass-roblox-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-roblox-gift-card-codes-2021-june_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/how-to-hack-someone-on-roblox-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_off00003324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3324 22772 bytes
SHA-256: 69a9345c371ffba1a1a017e0a46ad7a5d479e9d8aa88adecf2f1dc53d151a3ab
font_01_sfnt_off00006618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6618 18332 bytes
SHA-256: 5b878530e69a12175dbf01b0ca128da18827fe0c1663de911774679428d069c4

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