Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e9dbc829bc42b50…

MALICIOUS

PDF

45.3 KB Created: 2021-06-04 04:37:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: fdac284de9c98d6670c4b93321ebe849 SHA-1: 34751ce004f156bbdb68e1b83db713773ea61ba3 SHA-256: 8e9dbc829bc42b50b1a4c2c91345c24265d6835fb817210fef32fa7b6f012f27
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document employs a social engineering tactic, presenting itself as a guide to obtaining free game items or hacks, specifically mentioning Minecraft. It contains a prominent link directing users to a malicious website, likely to host further malware or phishing content. The heuristic 'SE_CLICKFIX' indicates the document may also instruct users to execute commands directly, bypassing typical security measures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/479516143/how-to-get-free-minecraft-alts-game-hack PDF link annotation
    • http://library.itekes-bali.ac.id/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-update-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/pubg-uc-shop-pakistan_GM1330123889.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/tik-tok-free-fire-30-detik_GM835599320.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spin-and-coin_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_off00005506.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5506 25848 bytes
SHA-256: 3ce21f17ad597ac69df6e9ba4ce9d4fabfabf444e3e049f3095f8ef8a064639a
font_01_sfnt_off00008fc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC5 17948 bytes
SHA-256: 269658f7a7a555eab253e34ae52e3b7e8d1bd144f37ca57273b9b28d07bafc6a

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