Malicious PDF — malware analysis report

Static analysis result for SHA-256 095b24209b0192b4…

MALICIOUS

PDF

40.4 KB Created: 2021-05-20 20:43:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8bd05045e065d34d7e0ff9ff7cced3ad SHA-1: 747666d1ba65ceb47cd5fdc07346fdec9c9f7ae8 SHA-256: 095b24209b0192b4f2cf601e43ecdd1c22695924ecbb9443b0b8d714ee34e89a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free generators, specifically mentioning 'Www Free Robux Com' and 'CLICK HERE TO ACCESS ROBLOX GENERATOR'. It links to external URLs that are likely part of a scam or further malware distribution. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7768

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/www-free-robux-com-game-hack PDF link annotation
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-generator-com_GM431946152.pdfIn PDF document text
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-wurst_GM479516143.pdfIn PDF document text
    • https://www.communes.comIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000336d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x336D 27240 bytes
SHA-256: 7699fb4b216f1d74fa440ef6126960534bdf30bab79b0d09c1a0edd25786820c
font_01_sfnt_off000071ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71CE 2820 bytes
SHA-256: d88f25cfe237a714f996150a11dd8a058f0f7c3e9d1ae91c17b46c10409b6c0b
font_02_sfnt_off00007b69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B69 18636 bytes
SHA-256: 9f7262e815bd0044d2d3715e2ef4b4760a787eb7fc9de28673ce11fb32ae2f7d