Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2767a94f5adee2c…

MALICIOUS

PDF

34.3 KB Created: 2021-07-06 07:08:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f6a1caef0577433d93bbbf1514500330 SHA-1: 20fd605f909c0c6b08b4851bdba4a470c8f3d6b8 SHA-256: e2767a94f5adee2c25d0547d61e4a6ae99e3e4f03a4a9fba640737273f1337eb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure for game hacks, directing users to a suspicious URL. The ML classifier strongly indicates maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to a malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/hackear-coin-master-game-hack PDF link annotation
    • https://opac.heritagejkt.org/repository/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/robux-codes_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-minecraft-severs_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-hack-phantom-forces-roblox-2021-november_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/hack-roblox-account-password-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/spin-coin_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/mc-hacks_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/2021-hacks-for-robloxs_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-codes-without-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-codes-not-used-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/comment-tlcharcher-un-cheat-sur-roblox-avec-explication_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-best-hack-for-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-build-tools-hack_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-hack-buildermans-password-on-roblox_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_002_off0000319e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x319E 22676 bytes
SHA-256: dc16242cb04bd50595daec499b722f948a238cacb7b18e550da188be6ff472a0
font_01_sfnt_off00006450.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6450 18004 bytes
SHA-256: 3b00d002f064a1bffd211e69e7b7eee4435707ee9e089706d32f556073cfa910

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