Malicious PDF — malware analysis report

Static analysis result for SHA-256 325daeb2d8302d61…

MALICIOUS

PDF

42.4 KB Created: 2021-05-11 20:04:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 79954575d1ec76e2f666a67fdacd1b72 SHA-1: 69d96823865b76c619081dc5623f7b00d44007e2 SHA-256: 325daeb2d8302d61d3c995724580b7349bb993c52adceb04c6cfe897e4528a66
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 0.9971

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.xyz/app/406889139/coin-master-hack-mod-apk-game-hack PDF link annotation
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/minecraft-app-store-free_GM479516143.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-hack-apk-app_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-daily-free-coins-link_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-ios-gods-hack_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/win-free-robux_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/coin-master-mod-version-free-download-34-4_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/hack-game-plus-com-coin-master_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elearnig.mtsmiftahululumdero.com/__statics/gudangsoal/files/hackear-coin-master-sin-verificacion_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_003_off00004bbc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BBC 24744 bytes
SHA-256: 4db15edf061f7752fab2db9397730f0aba7c5346fb4de0f1858bda35e42fadd1
font_01_sfnt_off000083d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D5 18068 bytes
SHA-256: 8758dd50bc7648d35d2c531368c06e2fb0219f77b8251a32ffca1508c8a7ec2c

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