Malicious PDF — malware analysis report

Static analysis result for SHA-256 689edea527042f5a…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 23:45:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 67592a813f82680c748fddca7fb2e427 SHA-1: 2b329cef85d97149558ca8a2ea5de3ae2bc83e63 SHA-256: 689edea527042f5a3d5dbfcc2845d1469c3b8dc4f92b4749ba81ec0cdcc767c1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/hack-coin-master-android-2021-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-jailbreak-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/instantrobux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-synapse-roblox-exploit_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-hack-in-skywars-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-protosmasher-free-download_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/real-roblox-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/hack-coin-master-32-mod-apk_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/hacks-in-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-robux-ihaxgames_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-jailbreak-freeing-prisoner-from-handcuffs_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-rare-cards-for-coin-master_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_002_off000030c0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30C0 22984 bytes
SHA-256: e655ea9b4ee2742e3f859c338ca83f600de9371cf1564592a7ba347e65448f85
font_01_sfnt_off00006488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6488 18580 bytes
SHA-256: b833999f4c6754dc62866f6543859dae43194a369ca48cd713f7a974dab38180

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