Malicious PDF — malware analysis report

Static analysis result for SHA-256 76a7bc8678cd060b…

MALICIOUS

PDF

38.1 KB Created: 2021-05-21 20:08:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f97c03a1b4f7fd45f5561a7faa3720d9 SHA-1: 8ebeddbd21db1f97ca2ad83b70368d63f58dfe22 SHA-256: 76a7bc8678cd060b3b837f426847553b24dc5d8859a57f4b6b06222c1e8961bd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to websites offering game hacks or generators, such as 'free generator / game hack'. The document body explicitly mentions 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', indicating a social engineering lure to trick users into visiting potentially malicious sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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/479516143/minecraft-bedrock-free-server-hosting-game-hack PDF link annotation
    • https://www.ukrtrans.biz/images/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://www.ukrtrans.biz/images/free-spins-coin-master-october-13-2021_GM406889139.pdfIn PDF document text
    • https://www.ukrtrans.biz/images/pokemon-go-free-kanto-event_GM1094591345.pdfIn PDF document text
    • https://www.ukrtrans.biz/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ukrtrans.biz/images/coin-master-hack-version-download-2021_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_off0000397f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x397F 25120 bytes
SHA-256: 4b1dab9db7807ba32929dc7dbd2334839ba9750881ead12eb8efc748f266340d
font_01_sfnt_off000072a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A8 18672 bytes
SHA-256: 5baa597ceebb7173861118a54c9708b38703675a1839245e0c8f4bf1dfc6d3a9

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