Malicious PDF — malware analysis report

Static analysis result for SHA-256 5927bf02c338c961…

MALICIOUS

PDF

39.5 KB Created: 2021-04-24 08:28:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f4fc43cabbde3206551bc34e73406ea9 SHA-1: cc9fbfbfa907118ae4202c617c6dc27793128912 SHA-256: 5927bf02c338c9618b0c9e9f198f640d724a599cf50ab4b995542352b5211aac
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses an urgency-based lure. 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 0.9469

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.top/app/431946152/dominus-rex-is-free-not-in-your-inventory-in-roblox-game-hack PDF link annotation
    • https://abellamoveis.com.br/ckfinder/userfiles/files/roblox-gift-cards-free-codes-2021.pdfIn PDF document text
    • https://abellamoveis.com.br/ckfinder/userfiles/files/roblox-cheats-how-to-get-free-gear.pdfIn PDF document text
    • https://abellamoveis.com.br/ckfinder/userfiles/files/free-robux-no-copy-and-paste.pdfIn PDF document text
    • https://abellamoveis.com.br/ckfinder/userfiles/files/how-to-get-free-roblox-items-usuing-android.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003e53.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3E53 24348 bytes
SHA-256: 7787dab7256d58c89c442ea7b249090b52905756b5278f470e79f5de72bd1409
font_01_sfnt_off0000764f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x764F 19196 bytes
SHA-256: ac0d73c12f4bfd0ef336b279f2271691fbb102bdec51111aa39a319e9ed091fa

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