Malicious PDF — malware analysis report

Static analysis result for SHA-256 e049585f438a7d4a…

MALICIOUS

PDF

34.9 KB Created: 2021-06-22 03:29:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 4fd2dca8142c7e677a87cefc78530467 SHA-1: e2e2489386fb5f707025fdec73a52df374e504ea SHA-256: e049585f438a7d4a682683c1e3daf1a08b797e7b66f117d870fb91d3da2eafc3
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.co/app/406889139/coin-master-extra-spins-game-hack PDF link annotation
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-online-hack-no-survey-no-password_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/free-spins-coin-master-legit_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/tik-tok-free-fire-30-detik_GM835599320.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/pokemon-go-free-download-game_GM1094591345.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-apk_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/free-robux-android_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-hack-blog_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/how-to-hack-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_off00003329.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3329 22648 bytes
SHA-256: 8f57ca0745dd73afe09fc8dc57871ca4d0459e3cffa1d302ba4db669d9b0ad33
font_01_sfnt_off000065d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D3 18220 bytes
SHA-256: c0e2fda8f318639778bbeb6eaed139355e4867bf99f439d7bb29ab44d5adfcfc

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