Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1c65bbf835985ad…

MALICIOUS

PDF

34.9 KB Created: 2021-06-29 08:08:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 4e1af775729a65ad0c0c7a13bb36d81a SHA-1: 83678891dc0a51caaa4f707cc8e6578183cbab61 SHA-256: e1c65bbf835985adb9019fb67810555b2d1857ddbc0c234edcd715f93c64e71c
122 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'game hack' which redirects to a malicious URL. This indicates a phishing or malware distribution attempt, likely using a social engineering tactic to trick users into visiting a compromised site. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/cmd-hack-roblox-jailbreak-game-hack PDF link annotation
    • https://www.orbai.ai/uploaded_files/userfiles/files/minecraft-multiplayer-free_GM479516143.pdfIn macro / runtime command snippet
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-legit_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-free-spins-grom-coin-master_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • http://netcdn.co/app/431PDF link annotation
    • 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_off000030e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E0 22388 bytes
SHA-256: 4eda0434ff4f4ec32212ea7344602ac4aa5c11c271e72009d7fd15ff46028a3c
font_01_sfnt_off00006292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6292 19376 bytes
SHA-256: b99db04caba5eb534f97e038fc9db1d91cc30940089ecc55d76ec49386a531eb

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