Malicious PDF — malware analysis report

Static analysis result for SHA-256 608051ca094d456a…

MALICIOUS

PDF

41.5 KB Created: 2021-04-22 16:21:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: e243a37156f4d48ee99f119e436a8c45 SHA-1: fd7259d3aa58fa7240e2bb459f3869b8b8107e0f SHA-256: 608051ca094d456acef3a10d5a09c2589b31b3dadee7a55f65981b2f377402ac
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9578

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://netsecure.pro/app/431946152/how-to-hack-roblox-for-rebirth-game-hack PDF link annotation
    • http://www.dynamitbogen.dk/billeder/free-model-roblox-eggs.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/lol-robloxcant-patch-the-free-robux.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/umpteen-hacks-roblox.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/roblox-all-free-items-list.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/cheat-engine-roblox-weight-lifting-simulator.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/cheat-roblox-jailbreak-tembus-2021.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/how-to-hack-roblox-accounts-with-command-prompt.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_off0000401f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x401F 28300 bytes
SHA-256: c5d1389efb5098edb02020c26950b9f5b972e1e2b7460cbcbaa7a5a629457039
font_01_sfnt_off00007f1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1D 18900 bytes
SHA-256: 012f500fdf0535c08eba64fbed90e7092b746bc48a660a2d9aac42b358ba185f

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