Malicious PDF — malware analysis report

Static analysis result for SHA-256 b76d48195c8dcdbc…

MALICIOUS

PDF

35.4 KB Created: 2021-06-28 22:43:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dd299e0ac81365cbec891d0298b0c2b4 SHA-1: aa011f32f390162bb6fa02efa002783b34cf954b SHA-256: b76d48195c8dcdbcc4d2dc899b0652b86e41eb87ec1d0759ca58275a8d7bcee7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game-related items to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a malicious workflow designed to lead users to potentially harmful content.

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.co/app/431946152/free-roblox-youtubers-accounts-with-passwords-2021-game-hack In PDF document text
    • http://katalog.ireyogya.org/repository/daily-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/pokemon-go-no-free-box_GM1094591345.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-jailbreak-cheats-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-roblox-items-codes_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-games-that-work-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/nonce-diomand-free-roblox-haxz_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/robux-hack-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-money-in-bloxburg-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-apk-download-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/gamehunters-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/has-your-roblox-account-been-hacked_GM431946152.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_off00002fe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE6 22364 bytes
SHA-256: 490064aa8133afcec9de68e4faf03cdd373d212a52f28157ef1c91a62d4c3d62
font_01_sfnt_off00006157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6157 20436 bytes
SHA-256: 9163d23c8ae245cd0bf05a93cf08cff162a0fedc947d7b869d5f0c3c0686df11

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