Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eae7e5b9a0b2638…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 05:04:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bf8fce0bde6aa604b26ee7adcb2573ec SHA-1: 733156f0042047aa538a041c9b38f442052a4ad9 SHA-256: 2eae7e5b9a0b26388a9d191d926116d596827fa79ff70d0da9c108f9e4d27839
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple heuristics indicating a malicious redirector lure, specifically impersonating brands like Facebook to trick users into clicking a link. The embedded URL `http://netcdn.tw/app/431946152/robuxglobalcom-game-hack` is identified as malicious infrastructure. The document body, though partially garbled, contains references to game hacks and currency, reinforcing the lure. No scripts were extracted, but the primary attack vector is a malicious link designed for credential phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://netcdn.tw/app/431946152/robuxglobalcom-game-hack.
  • 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/robuxglobalcom-game-hack In PDF document text
    • https://library.iuli.ac.id/repository/alphalife-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-use-cheat-engine-on-roblox-retail-tycoon_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/como-hackear-vehicle-simulator-roblox-para-tener-12000000-2021_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-robux-hacks-com-online_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/unpatched-cheat-engine-roblox-2021-february_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-free-fire_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-hack-robux-hack-fr_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-cool-hats-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-get-free-robux-on-roblox-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/prisonbreak16-hack-script-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-hack-2021-apk-download_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-troll-hack-pastebin_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-look-like-a-hacker-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-hack-in-roblox-kozock_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-hack-aimbot-in-breaking-point-roblox_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_off00002e31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E31 23236 bytes
SHA-256: e389e4ed35e0708cb8b0639e3adabdb8e8c8f66ea2cb53f8e05565556a2bb588
font_01_sfnt_off00006200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6200 18884 bytes
SHA-256: 77bdee58b98e4b81ad8b422e6c8a2d119f103232b777f7197d72db293d7d4d98

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