Malicious PDF — malware analysis report

Static analysis result for SHA-256 2243ffcfc5f9f508…

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 03:53:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 0430388ee3f7dc2c003a896041d5f735 SHA-1: f9f8a4d2ba467adb00b446f9c7f119772f284612 SHA-256: 2243ffcfc5f9f5089e47bbc4026b194eacad9356876c860acebd17fa85f56e52
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and references to 'free Robux' and game hacks, a common lure for phishing and malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and the embedded URLs strongly suggest the document's purpose is to redirect users to malicious sites. While no scripts were directly extracted, the nature of the lures and the embedded URLs indicate a likely attempt to download further malicious content or lead users to credential harvesting pages.

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/431946152/games-that-give-free-robux-game-hack PDF link annotation
    • https://labdagatismk1pundong.com/repository/hack-para-las-contraseas-de-roblox_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/roblox-hack-robux-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/roblox-free-pants_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/hack-roblox-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/roblox-cheat-engine-hacks-2021_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-do-you-get-free-robux-on-roblox-android_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/game-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/roblox-free-prizes_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/this-game-gives-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-and-tix-2021_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/barren-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-roblox-faces-purple_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/app-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/shirt-template-roblox-download-free_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/tiktok-free-wala-video_GM835599320.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-games-like-minecraft_GM479516143.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_off00002fc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC9 22264 bytes
SHA-256: c487ca3f63a3a3324b0256419879fa04997bb148809d9d9266a96538390b60fd
font_01_sfnt_off000060db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DB 19480 bytes
SHA-256: a134365561edbdff80a1502dd404e307ea3328ecb7bf3d1da0fbfee9abe6ee6f