Malicious PDF — malware analysis report

Static analysis result for SHA-256 96e4c3de6ac5d80e…

MALICIOUS

PDF

56.0 KB Created: 2021-05-11 15:01:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f4c5092640f6480c456a63958ad5427d SHA-1: f4d6d5d1c4f1a063cba5bd30914b1e5818353dcd SHA-256: 96e4c3de6ac5d80ef12bce0a83201a07f990b78f420df6f53994e923dc97ff9f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure for game hacks and free currency, directing users to a suspicious URL. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' indicates the document's intent to redirect users to potentially malicious content. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7915

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/free-spins-and-coins-coin-master-2021-link-game-hack PDF link annotation
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/games-like-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/minecraft-hacker-mask_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/free-800-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/free-robux-glitch_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/coin-master-free-coins-no-human-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/coin-master-hack-online-without-human-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/minecraft-114-download_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e82.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E82 25964 bytes
SHA-256: ae4a38dfd051e49e4bcc0f2ade9876e94c477067edd8e800bb2d4bb89315983e
font_01_sfnt_off00008b0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B0F 3088 bytes
SHA-256: e7854aff7cbc8fbdeb85d2b3d6248d12dc820ede8a581f4eac107fa6446c2222
font_02_sfnt_off000095da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95DA 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off0000a900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA900 18632 bytes
SHA-256: e5cba94a653a55f068ca82f0c7712f51eecd5e3013a204785266329deafd7ed1
font_04_sfnt_off0000cc28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC28 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

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