Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd005d8cb6806219…

MALICIOUS

PDF

58.5 KB Created: 2021-06-03 10:31:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a58e24a7f721f13f2297601a734cd7d8 SHA-1: 8073c3d8a912cb68a7036fa3688e65c1bb54a5cc SHA-256: cd005d8cb680621996c0b6fd7fdc63bd84df0f7c1a9f63cb7b61c19629eafffa
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure for a "Coin Master Hack" which directs the user to a URL promising a game hack. This URL is likely a phishing or malware distribution point. The ML classifier also flagged the PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9585

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.online/app/406889139/coin-master-hack-2021-no-human-verification-game-hack PDF link annotation
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/microsoft-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-master-free-spins-link-2021-march_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-blogspot_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-robux-rewards_GM431946152.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_004_off0000555d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x555D 26612 bytes
SHA-256: cf5680b4970e15746609f136f28832e718a9b44cc9a15755f6116b8dc778a9d9
font_01_sfnt_off000093d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93D7 3192 bytes
SHA-256: a55eb3b5bfccee8615d925fabc2db3b38481ccf4f0a06f3681dc7a258cbabd67
font_02_sfnt_off00009f07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F07 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off0000b22d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB22D 18652 bytes
SHA-256: b8f105c40d85849bb980b8b1f3fc80cc73964bf3899fc8976168334accd52214
font_04_sfnt_off0000d568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD568 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

Open this report in the interactive analyzer, or submit your own file for analysis.