Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e7b7ae1d02396f…

MALICIOUS

PDF

42.9 KB Created: 2021-05-20 02:11:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f759bb5e41ccea5b4cde634c721f86d7 SHA-1: 8c242513cc4ef9fed09a84ae378fa8fcd4856e7d SHA-256: d2e7b7ae1d02396f3ba3a936ac98dc25892d71fb9548031840263d43b5abf92a
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/431946152/free-robux-android-game-hack PDF link annotation
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/robux-download_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/best-tricks-co-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-online-free-spin_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/como-hackear-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coinmaster-spin-ml_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_off00004895.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4895 25836 bytes
SHA-256: b040a18627b52d189d0799347b150097232c5ecdecd0994d14c72c1bbe0eed16
font_01_sfnt_off0000853b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x853B 18308 bytes
SHA-256: 3d682ae06d788585f0d48ef4471ddbfed33e391fd6a867cb0ce2fb595824b3ec