Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa1bebf53289403b…

MALICIOUS

PDF

41.7 KB Created: 2021-05-12 14:39:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: b0fe3067ffa815c8afdab9d52100a9de SHA-1: b65be5337d19036b9a9e459890c4d817bb4872c3 SHA-256: aa1bebf53289403b657ecae79849487b96511f93e3024fd736936ab5c7459102
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, with a primary URL pointing to a 'game hack' lure. The presence of a 'password-protected archive handoff' heuristic suggests the document is designed to trick users into downloading an encrypted payload. While no scripts were directly extracted, the PDF structure and embedded links indicate a malicious intent to redirect users to potentially harmful content or download malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/406889139/mcmaster-club-coin-master-hack-game-hack PDF link annotation
    • http://iedarelief.us/images/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/free-800-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-use-redstone_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/unlimited-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-spin_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000491e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x491E 24296 bytes
SHA-256: c92259002191103fa3b18eec8c8c82cdffa11a177d6c184279d4c6bd5aa99729
font_01_sfnt_off00008090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8090 18348 bytes
SHA-256: ed1e6ab49444ec67c6128d5e9db558dbde3f3cd5229ad3c4337b7f9a3ebd051f

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