Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e59e1d1931b983c…

MALICIOUS

PDF

44.8 KB Created: 2021-06-03 08:52:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2b7ec91e8477ee187c8798be738962c4 SHA-1: 3466c8468f3d856c6954c965af4dba876425bafb SHA-256: 2e59e1d1931b983cda37800933d73e5ac61bd0f06179d35ec51e491a8c5acb49
122 Risk Score

Malware Insights

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

This PDF document employs a social engineering tactic, specifically a 'ClickFix' lure, by presenting itself as a game hack generator. It contains multiple links directing users to external websites, with the primary malicious URL being https://netcdn.online/app/479516143/minecraft-bedrock-hacks-game-hack. The document's structure and embedded links strongly suggest an attempt to lure users into downloading or accessing further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.online/app/479516143/minecraft-bedrock-hacks-game-hack PDF link annotation
    • http://www.bestbist.com/assets/uploads/pages/files/how-do-i-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-free-spins-2021-app-download_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/roblox-generator-com_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/cpbildco-robux_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/tiktok-followers-free-2021_GM835599320.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/robux-premium_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/roblox-hack-scripts-pastebin_GM431946152.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
stream_004_off000052a6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52A6 25144 bytes
SHA-256: 0e1db860c20738e19777186a25009b82cb44cfde9b47a225be82aa9d33273d7e
font_01_sfnt_off00008c81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C81 18268 bytes
SHA-256: cdc10c07562964e95d3c60cab3c6d937b43618c1a43ea86bc4060c2923515875

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