Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb11cdce3d660bdc…

MALICIOUS

PDF

33.9 KB Created: 2021-06-28 15:37:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5675828ffab2689d31722c756eaed307 SHA-1: 16407923d270cf2d44d508d10f1585d50d081725 SHA-256: cb11cdce3d660bdc289351693bb97692e3b26726cad876788b5de32da9211781
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a high-confidence heuristic firing indicating a 'free generator / game hack' lure. The document body explicitly mentions 'Hacks To Get Robux 2021' and includes a primary redirect URL, suggesting a phishing or scam attempt to direct users to potentially malicious websites. No scripts were extracted from this sample.

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.co/app/431946152/hacks-to-get-robux-2021-game-hack PDF link annotation
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/roblox-eating-simulator-hack_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/pastebin-roblox-items-free_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/roblox-18_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/worst-client_GM479516143.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/coin-master-apk-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/pastebin-hack-robux-free_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/free-robux-on-ipad-and-withoutb-downloading-anything_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/roblox-hacked-client-2021_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/is-tiktok-free_GM835599320.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/pokemon-go-free-and-home_GM1094591345.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/coin-master-free-spin-download_GM406889139.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/free-spin-and-daily-news-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/real-robux-codes_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_off00002d6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D6A 22120 bytes
SHA-256: 528d06e23059daed23af08712206d9eb1e9ab99f8c6ad95e21046a268317e649
font_01_sfnt_off00005ea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA9 19228 bytes
SHA-256: 0cbba6957ce2d9278dad843e63f9cf38665bbe789ffdc1de20b743293c8e4771

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