Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb7bee46acb7f759…

MALICIOUS

PDF

42.7 KB Created: 2021-05-11 07:23:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2736190595ece47147ab261b104f95cc SHA-1: d6dc029c1ec6bb416905aa06356598f01b5d6c6b SHA-256: eb7bee46acb7f75985337b62c3b4e865a8767f59a2e6f74c7f5f5ee7a6a4a95a
110 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'Robux Generator' and links to a suspicious URL, indicating a likely phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 https://netcdn.xyz/app/431946152/robux-generator-without-human-verification-game-hack PDF link annotation
    • https://www.alarqam.ae/userfiles/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-free-play-no-download_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-do-you-get-robux-on-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
stream_003_off000049a2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49A2 24520 bytes
SHA-256: a6db35a4d7343d4dff0621b0bc89e74a62475ba336e7ff2a290e790374976a50
font_01_sfnt_off00008217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8217 19060 bytes
SHA-256: 0b726b9d6aa2dbbe5db30d67cab0ffdd1f5741338f472823ef6d39bdf2cbc11d

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