Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6560120d38d227c…

MALICIOUS

PDF

33.6 KB Created: 2021-07-04 00:04:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ccf89aa5f02222a41306bb915937c14f SHA-1: e4f0f8ef317edee7a43aaece2fa46e16aadf4618 SHA-256: b6560120d38d227c6d9d568b5720f2619728d57e1542223c74738475a9c89b87
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs, with a primary focus on luring users with 'free Robux' or game hack schemes. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent, directing users to external sites like http://netcdn.tw/app/431946152/can-u-get-free-robux-game-hack. This suggests the document is part of a phishing or scam campaign, likely intended to lead users to sites that may host malware or attempt further social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/can-u-get-free-robux-game-hack PDF link annotation
    • https://www.labdagatismk1pundong.com/repository/how-to-hack-into-roblox-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-for-surveys_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/rex-points-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/best-games-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-lvl-hack-in-naruto-final-bond-in-roblox_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/microsoft-roblox_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/i-was-hack-on-roblox-no-download_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/roblox-ro-port-tycoon-cheats_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-get-a-free-face-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/wwwfree-robux-hackcom_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/roblox-jailbreak-money-hack-2021-november_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-get-free-premium-roblox_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
font_00_sfnt_off00002efe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFE 21880 bytes
SHA-256: 13cd8c6817a201dc9320ef38c026c5fe3ca03b258b625c398860db2741f90d65
font_01_sfnt_off00005f0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0E 18820 bytes
SHA-256: 52be6a65770a01cbb173e94763e18c68b2166cf4419204c0ca48f3c63de48c00

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