Malicious PDF — malware analysis report

Static analysis result for SHA-256 fea3b44dd9b8748c…

MALICIOUS

PDF

35.4 KB Created: 2021-07-01 07:14:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 4a7ab591c27220a8cea2fbb2dfe98802 SHA-1: 97acedf39dbfb71eb85d02bb2b9ebfcef0017f36 SHA-256: fea3b44dd9b8748cb4ffce63fd10a6e0c9d55d984766b6939428655653c72209
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and lures users with promises of free in-game currency and hacks, a common social engineering tactic. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests it is designed to redirect users to malicious sites. The document body, though partially corrupted, contains references to these lures and the primary malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.co/app/431946152/roblox-free-robux-no-fike-game-hack PDF link annotation
    • http://daskrimti-jabar.web.id/library//repository/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/download-coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/promo-codes-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-roblox-computer-games_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/login-to-tiktok-free_GM835599320.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-draw-of-roblox-character_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/admin-commands-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/pubg-uc-770_GM1330123889.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_off00003435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3435 22104 bytes
SHA-256: 9176dde53b27a60254fa5527eea6c34ee5e62a9d00699990ba30b40146b27876
font_01_sfnt_off0000654d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x654D 19080 bytes
SHA-256: 1bf8021363579f4749a1740020353e336290b5ecc592b38e56084a2924c11df7

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