Malicious PDF — malware analysis report

Static analysis result for SHA-256 350fbc48e5864e60…

MALICIOUS

PDF

41.7 KB Created: 2021-05-17 19:33:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5b69a52d5d75bc58ea160e2dbb1063a6 SHA-1: 6729bcb261f98b95ff9032f313e7a09cd3462f94 SHA-256: 350fbc48e5864e606594d5f2366823ffa09654ae3332949321886db2628864fc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites that promise game hacks and free in-game currency, a common lure for phishing and malware distribution. The ML classifier also flagged this PDF as malicious with high confidence. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially malicious sites.

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/406889139/coin-master-free-spins-2-5-2021-game-hack PDF link annotation
    • http://halle-wasserball.de/images/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://halle-wasserball.de/images/robux-no-survey_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-robux-games_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/roblox-free-pants_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/wurst-18-9_GM479516143.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/rape-simulator_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-robux-generator-without-verification_GM431946152.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_off000047ce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47CE 24600 bytes
SHA-256: 5a748760fca22038019cb99594efba15a3ec0c75ab24974198ab9a70b52389c7
font_01_sfnt_off00008018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8018 18420 bytes
SHA-256: fc9c1cd0ccc985f14e0cb904a615d0991f1fd615bf6bb58e7d206b3ec4fad204