Malicious PDF — malware analysis report

Static analysis result for SHA-256 6575606115b7fa4d…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 01:04:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: db6a1c1eea7dd282ab2f9f09e6872f6f SHA-1: 1aef333b28b3f23da7f830f32a9a18162e4c8329 SHA-256: 6575606115b7fa4d78517e0b8facd8577eb3f949dc77468e410cba76fefd276f
122 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and free currency, a common lure for malware distribution. The heuristic firings indicate this PDF is designed to trick users into visiting malicious sites, potentially leading to the download of a second-stage payload. The document body and embedded URLs strongly suggest a social engineering attack aimed at users seeking in-game advantages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-free-coins-and-spins-2021-game-hack PDF link annotation
    • http://daskrimti-jabar.web.id/library/repository/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-lightning-cheat-code_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/safe-free-robux-no-password-or-human-verification_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-hack-a-rank-on-roblox-groups_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/le-jeux-du-hack-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-hack-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/new-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-find-out-who-hacked-you-on-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/a-friendly-guest-hacker-on-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-no-password-or-phone-number-needed_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/wurst-download_GM479516143.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_002_off00002fa0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FA0 22680 bytes
SHA-256: 076239fbae6b0e6eecda8f80730a466e923ce1259ce7b748db7a6906e349d268
font_01_sfnt_off00006296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6296 18752 bytes
SHA-256: 9cfff5c9d368e8e7141644af730753f5e6032632d251e368c47cb3100a9cf956

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