Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fb658e8baeecd9f…

MALICIOUS

PDF

34.8 KB Created: 2021-07-05 22:57:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a40ea9a8eb5ba82f0f0967e7dd406a36 SHA-1: 0976744ccb1f0b3ae32f7878837b9b58d207795e SHA-256: 0fb658e8baeecd9fc7e6816900f0af1580f33ed24aed5c5586c952f8deb59afa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures for games like Roblox and Minecraft. The embedded URLs are designed to trick users into visiting potentially harmful sites. The ML classifier strongly indicated maliciousness, and the presence of multiple redirector links confirms a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/rbxoffer-com-free-robux-game-hack In PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/cool-items-roblox-free-and-how-to-get-them_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/how-to-get-free-face-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/coinmaster-free-cards_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/injector-hack-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/roblox-case-clciker-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-windows_GM479516143.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_off0000320b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x320B 22316 bytes
SHA-256: c93e41153799feb33e9d02b764eb443d9b818f079906d2b982aa156ba790451b
font_01_sfnt_off00006363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6363 18976 bytes
SHA-256: 2de607ebb51e2b40921b87b2c59dd41d6317f330d4e445ad75b187d877423626

Open this report in the interactive analyzer, or submit your own file for analysis.