Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fc5c6d92b7159f6…

MALICIOUS

PDF

33.9 KB Created: 2021-07-03 16:54:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 41193fbafb0ecbebdb79917c1c11856f SHA-1: 85772c9c7855e96aaeb6605de815745492ccd265 SHA-256: 6fc5c6d92b7159f6788d2ec62176ad3fd98a6fe7385f3aa79de7e09e452302aa
82 Risk Score

Malware Insights

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

The PDF document contains multiple links to external websites, including one identified as a game hack redirector. The document body explicitly mentions 'Coin Master Hack Apk Download' and includes a URL that appears to be a download link for such a hack. This suggests the primary purpose is to trick users into downloading potentially malicious software or engaging in a scam. 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.tw/app/406889139/coin-master-hack-apk-download-game-hack PDF link annotation
    • http://library.umuslim.ac.id//repository/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-bunny-ears-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-free-builders-club-hack_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-hacked-account-back-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-rocitizens-how-to-get-free-money_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-god-mod-hack_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-jailbreak-hack-december-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-system_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
font_00_sfnt_off00002dca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DCA 22624 bytes
SHA-256: cfdb962ff00d9d2dff50dd0c7f807afd41d79334abf481da917f3f6fcafa3ce2
font_01_sfnt_off0000605e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605E 18760 bytes
SHA-256: e0717da7bc261f17ea8f419e12a90ec9f2f0bf974bdb9909681cf6939735c129

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