Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f917dbf7567ea3b…

MALICIOUS

PDF

49.7 KB Created: 2021-06-03 12:51:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dd4eb52d470975260910c3aeb56888bc SHA-1: cb2b2badfaf558e9d8935ffe615d6b8f48600eb7 SHA-256: 8f917dbf7567ea3b3f6dacf307e70ff8b47343220ea55d7f30f7500ad7d4c2b2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to known malicious redirectors, disguised as 'free generator' or 'game hack' lures. The primary link directs users to 'https://netcdn.online/app/431946152/free-draw-roblox-game-hack', which is identified as malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a malicious redirector workflow, likely leading to further exploitation or malware download.

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.online/app/431946152/free-draw-roblox-game-hack In PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-hack-on-roblox-youtube_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/tiktok-free-gift_GM835599320.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/instantrobux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/minecraft-handbook_GM479516143.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-spin-app-for-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_004_off0000507f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x507F 26272 bytes
SHA-256: d2b6096b88694770c092711232fb4ce966f33ae57980c5f76ca0b1d44a7c378c
font_01_sfnt_off00008d94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D94 7272 bytes
SHA-256: f462303657ce1de10d3e7d5ae1fe17c8584116bd5bc216971166de87266da924
font_02_sfnt_off00009f05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F05 18508 bytes
SHA-256: f910b5e05dc090141321478ad8f2371d3108a4bfaceab19230c4d52c6f4382ac

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