Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed3032503c350a4a…

MALICIOUS

PDF

45.1 KB Created: 2021-06-04 04:03:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 2b8098089b51e404f9142bfdc56baf3b SHA-1: b235c2a18c99780510eed8b5ac31468750a37db1 SHA-256: ed3032503c350a4a1dcc3e2a8002dd6de23ea207ae8f2eefa51e0cb6444a1145
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link disguised as a game hack generator, which is a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of numerous similar URLs suggests a campaign distributing such lures. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/coin-master-free-100-spin-link-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/daily-free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-hack-without-verification-ios_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/descargar-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-com-free_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-gift-links-2021_GM406889139.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_off00004eba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EBA 28344 bytes
SHA-256: cb4532df34d938b431ff72b9bd62a99d54ddcebf996199ede259214eba2f368d
font_01_sfnt_off00008d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6F 18336 bytes
SHA-256: 7e778ef079ae960c06ab48a136ea41e415783434fe93bdbecaa752c7fe43c00d

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