Malicious PDF — malware analysis report

Static analysis result for SHA-256 77b60ea22139f1ce…

MALICIOUS

PDF

43.3 KB Created: 2021-05-13 03:35:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 36499240b16a79fa3863618f9af7d467 SHA-1: 7460a6b2b360223147791aa7267bb1d2ed500393 SHA-256: 77b60ea22139f1ce97dee2f8641dd343dbe89a5133eb2297c9020c14c4e498d7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting a 'game hack' lure. The presence of multiple redirector links and the ML classifier's high confidence score indicate a malicious intent to lead users to potentially harmful content. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/arsenal-hacks-roblox-game-hack In PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/free-400-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/roblox-system_GM431946152.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/robux-online_GM431946152.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/roblox-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • https://e-learning.manbangkalan.sch.id/__statics/gudangsoal/files/get-free-spins-on-coin-master-no-human-verification_GM406889139.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
stream_003_off00004882.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4882 27020 bytes
SHA-256: a70a1233082e636193c44d3a9b486f89b22d8cea2ebe7fde0612b78e50f92070
font_01_sfnt_off00008713.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8713 18184 bytes
SHA-256: a3c2357e5f06b76da12fb87e71b44d24867f9c5d578f41f931a6caf721fbec94

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