Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b140ea97f69ff6e…

MALICIOUS

PDF

36.3 KB Created: 2021-06-19 04:46:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 7909ddaba32ff9a606239e3148637e60 SHA-1: e4c70f77f71bf16960a3fb29c1a946b53a7d5523 SHA-256: 9b140ea97f69ff6e4a6f0516aa8d5dea08f11ecf9dc89f5d73890560cf2071b1
62 Risk Score

Malware Insights

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

This PDF document is classified as malicious and contains numerous embedded URLs pointing to exploit-related content, specifically for Roblox. The document body and heuristics suggest a lure to download a Roblox exploit, likely leading to the execution of a second-stage payload. The presence of multiple exploit-related URLs indicates a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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/431946152/2021-non-patched-roblox-exploit-free-heck-yeah-game-hack PDF link annotation
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-cheats-like-rcm_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-falling-roblox-codes_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-giftcard-codes-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/copy-and-past-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-a-free-2021-roblox-account_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/hack-coin-master-for-iphone_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-gfx_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-meepcity-games-for-free_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-spins-heaven_GM406889139.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_off00003475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3475 22128 bytes
SHA-256: 7aa34065ece60b08f2f4e9012cdddd5dca894c567037167c921d6a3fbeb445cb
font_01_sfnt_off00006572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6572 20276 bytes
SHA-256: 3289a9f410f71d81738e7f4f20b0b880dbe56d70d14ba045d967a2c881d1a512

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