Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a6afcc4f7e52411…

MALICIOUS

PDF

47.4 KB Created: 2021-06-03 09:22:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 197b123c8545fc4947f34b6eb9336956 SHA-1: e7cc6258e01dce0a5af3ad10e8e1da2d4b250ff3 SHA-256: 1a6afcc4f7e52411b4a81fb739327048ffff9c147aa9225460c845af92026236
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for 'free Robux generator' and 'game hacks', directing users to external URLs. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a scam or phishing attempt. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious websites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.online/app/431946152/free-robux-generator-2021-no-human-verification-or-survey-game-hack PDF link annotation
    • http://katalog.ireyogya.org/repository/free-roblox-toys_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/fb-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-roblox-items_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-spins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-online-link_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-daily-free-spins-blog_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
font_00_sfnt_off000054d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54D8 27308 bytes
SHA-256: 252eea82aa3808c2fa99c3d05f7be3ba43c00866f03fc3b479975dc27cc69364
font_01_sfnt_off00009309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9309 19556 bytes
SHA-256: 76adbda1d3e57e3064df3e292cf485a94c26c1a96e5d3a4e3c484cd1a4e129d0