Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c68579ef378debd…

MALICIOUS

PDF

48.0 KB Created: 2021-05-11 08:00:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c2c5692b0c1230ee6d3d8b8dbac2b2b6 SHA-1: 37d7a7f3f084e48a83d6ede28a06f1968b996474 SHA-256: 0c68579ef378debd0950ef9c7fcbbb105edeac035b9a7f423f360692c3317d2f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a game hack redirector, specifically targeting Roblox accounts. The document body and extracted URLs reinforce this, pointing to various 'hack' and 'generator' sites. While no scripts were extracted, the presence of external links suggests the PDF is designed to redirect users to malicious content, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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 https://netcdn.xyz/app/431946152/how-to-hack-roblox-accounts-2021-easy-game-hack PDF link annotation
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/free-roblox-characters_GM431946152.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spin-link-today_GM406889139.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/unlimited-robux_GM431946152.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/10-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://elma.mtsn10jakarta.sch.id/__statics/gudangsoal/files/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b8b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B8B 24764 bytes
SHA-256: 361d73f506e0e7fada8f7545090d1eb3fc80450263b137f949acf48ba3e94322
font_01_sfnt_off00008488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8488 7448 bytes
SHA-256: a76ff9b4805dcff342f7268a16e2e3c2ff2b31b96c381fe4deb6ceea777bce90
font_02_sfnt_off0000966b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x966B 19172 bytes
SHA-256: 0a4c192dd0d49b475d670e2028b2e3d9bc88486e58824ff416e2d46c0acce708

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