Malicious PDF — malware analysis report

Static analysis result for SHA-256 69ddc53a21da2662…

MALICIOUS

PDF

50.1 KB Created: 2021-06-09 05:48:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: c12373f51b4622119e9022194156ca78 SHA-1: 2cd22c98e34c606f133c88191adb4b94d44953d4 SHA-256: 69ddc53a21da2662849354d9c251a0039ae3f2b6f41de088a884304f090a8ed8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for free game currency, directing users to a known malicious redirector. The document body and embedded links strongly suggest a phishing or scam attempt to drive traffic to potentially harmful sites. While no scripts were explicitly extracted, the nature of the redirector and the lure implies a potential for further malicious actions, such as JavaScript execution or payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/roblox-how-to-get-free-robux-not-clicbait-game-hack In PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/create-free-account-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/roblox-free-audio_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/hydra-roblox-game-that-gives-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/free-tiktok-likes-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/roblox-script-cheat_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/roblox-card-free-fake-it_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5427 25616 bytes
SHA-256: ef606ab36ff338b5c6108511aa1ac9bcfcd8e0caa1e2350d57573638bf6cfd78
font_01_sfnt_off00008e5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E5E 7272 bytes
SHA-256: f462303657ce1de10d3e7d5ae1fe17c8584116bd5bc216971166de87266da924
font_02_sfnt_off00009fce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FCE 18704 bytes
SHA-256: e2c9d1ae18d47405dbb9b89f0841e924470797d62ae47d6e4429c43bc69f058c

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