Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd2d0fee8844cfcc…

MALICIOUS

PDF

46.0 KB Created: 2021-05-19 05:32:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f927f83fd7841bbe215d0594181b7a46 SHA-1: 3881e6b93b43dccf804058258fc116efbf2bfdeb SHA-256: bd2d0fee8844cfcc43ec81d72d92a3069f12143c6a4dbd4dc36a52e63fe6fdfd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'free generators' to lure victims. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to potentially harmful content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/robloxhacks-game-hack In PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/minecraft-com-free_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/minecraft-esp_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-roblox-acc_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/coin-master-jackpot-madness-hack_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/minecraft-items_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/coin-master-card-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/simplysarc_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/roblox-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-to-earn-free-spin-in-coin-master_GM406889139.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_off00004c65.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C65 25596 bytes
SHA-256: 1bb8425a9c96f575a3554977b31824cf480c2754850bd15f89ae747a4663b5ad
font_01_sfnt_off0000868a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x868A 3004 bytes
SHA-256: 93845cfab9436bdf1c990d8c9529434f95da71389e8e4e7b85b1f8371b1c81e7
font_02_sfnt_off000090f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F0 18348 bytes
SHA-256: 4c82b5acf2344fb6074e769b7bb8f458d53ebd76102ce4f277dd7245c06f6447

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