Malicious PDF — malware analysis report

Static analysis result for SHA-256 073755563957800b…

MALICIOUS

PDF

42.9 KB Created: 2021-05-11 16:02:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: b3593629bab855a37a9634307052e30c SHA-1: c324d89f97718816f6fcd51b01e25e5a4b7906bc SHA-256: 073755563957800bbe92b7eb476aff98bc97fdf94c00b6435feab99349ce5857
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, strongly suggesting a lure for users to click on 'free game hacks' or currency generators. The primary URL, https://netcdn.xyz/app/431946152/free-robux-without-human-verification-real-game-hack, and numerous other embedded URLs point to suspicious domains that likely host further malicious content or phishing pages. No scripts were extracted, but the PDF structure and heuristics indicate a malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • 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.
  • 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/free-robux-without-human-verification-real-game-hack PDF link annotation
    • http://iedarelief.us/images/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-use-redstone_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/2021-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/free-minecraft-skins-xbox-one_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/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/get-robux-now_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-get-free-snacks-on-coin-master_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/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-heaven-daily-free-spins-and-coins-links_GM406889139.pdfIn PDF document text
    • https://www.roblox.comIn 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_off0000495f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x495F 24840 bytes
SHA-256: 1512962ff3cbfc00e89f84dac6ff449fc3a1f0e869a8f169f5910a58ea75d9bc
font_01_sfnt_off0000829f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x829F 19296 bytes
SHA-256: fcd37aae12381262441149b3f055c838aea0a99c045645b338d4096dcdd54a9c

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