Malicious PDF — malware analysis report

Static analysis result for SHA-256 292545cd8f581ff2…

MALICIOUS

PDF

251.4 KB Created: 2021-07-05 07:46:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 46e7c4eca932e5fe50946f89b1d5b5d5 SHA-1: 2101234993a1eb868e9039489ac93fe810c9cfca SHA-256: 292545cd8f581ff2edbcd591941af6fb3c9016eb7a8531f502259b3ce7235d64
140 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA and an advance-fee scam lure, aiming to trick the user into clicking a malicious link. It also includes MFA harvesting lures, suggesting an attempt to steal credentials or session tokens. The embedded URL points to a suspicious domain associated with game hacks, likely serving as a download or redirection point for a second-stage payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0098

Heuristics 7

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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 http://netcdn.tw/app/1330123889/pubg-mobile-uc-2021-game-hack
    • http://muslib.unmus.ac.id/repository/free-roblox-codes-for-robux-9_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/coin-master-free-spins-link-2021-hack_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/hacker-for-hire-roblox_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/roblox-kick-me-whon-i-cheat_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/how-to-get-tiktok-free-followers_GM835599320.pdf
    • http://muslib.unmus.ac.id/repository/free-roblox-noclip-exploit_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/roblox-free-pants-and-shirt-president_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/coin-master-jackpot-hack_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/coin-master-hack-tool-without-verification_GM406889139.pdf
    • http://muslib.unmus.ac.id//repository/microsoft-bing-free-robux_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/free-builders-club-code-roblox_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/robux-giver_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/anyway-to-legally-get-free-robux_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/robux-hack-by-villarnor-gelerb-pastebin_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/what-tiktok-free-likes_GM835599320.pdf
    • http://muslib.unmus.ac.id/repository/how-do-i-get-free-coins-in-coin-master_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/hacked-client-for-minecraft-bedrock_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_024_off00037f1f.bin
2c1d70d5956e6c1a7a4b0734d56bcb6c33333cb0b55f4c8956b98a2b333893b3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x37F1F 25928 bytes
font_01_sfnt_off0003bc32.bin
3b4ba9924d43050937ad3e17b606b4b2fa0cee7c483841255973589d078cef18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3BC32 19060 bytes

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