Malicious PDF — malware analysis report

Static analysis result for SHA-256 47b0c88e94c91119…

MALICIOUS

PDF

35.5 KB Created: 2021-07-07 16:55:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ac9f91447755e83222d07c493a7cabc1 SHA-1: d730987b9642f38ad10e513867051d4ed4a00ee9 SHA-256: 47b0c88e94c91119712e5b9241854e7988ab258f44642b09cdb645ba9e07757c
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/free-coins-and-spins-coin-master-game-hack PDF link annotation
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/hack-for-roblox-wont-gey_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/gamekit-roblox-800-robux-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/how-to-code-on-roblox-to-cheat_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/robux-cheat-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/coin-master-mod-apk-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/roblox-item-hack-t-shirt_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/free-spin-online-tool-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/free-roblox-birthday-invitations_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/roblox-cape-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4pasuruan.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003252.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3252 23560 bytes
SHA-256: 4cfd9bff3153df68d30f4aad814e3adc98ed49acc129ec72795f40df3a2c5901
font_01_sfnt_off000067e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E6 18348 bytes
SHA-256: c90f632020bcb1e728f62a43997badda2860e0d329262e99dedc1f8a12c39115

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