Malicious PDF — malware analysis report

Static analysis result for SHA-256 f07997fb485b4638…

MALICIOUS

PDF

33.9 KB Created: 2021-06-25 23:32:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d92b5bff4ef51606d482554b909bc61b SHA-1: ab440bebc9a36d492fe351a80477e47aca42f384 SHA-256: f07997fb485b46382bcb3ee230a2f595465c497e1725fcf9bd1917e43b885d63
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a lure related to game hacking, specifically for Roblox, to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/how-to-hack-a-friend-on-roblox-game-hack, and numerous other URLs point to domains that likely host malicious payloads or phishing pages. The ML classifier strongly indicated maliciousness, and the heuristic firings confirm the use of a game hack redirect lure.

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.co/app/431946152/how-to-hack-a-friend-on-roblox-game-hack PDF link annotation
    • https://labdagatismk1pundong.com/repository/roblox-hack-injector-2021_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-hack-items-into-your-roblox-account_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-hacks-iphone_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-hack-apk-link_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-no-human-verafaciton_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-shirt-roblox-2021_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/roblox-bux-free_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/roblox-girl-avatar_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-free-link_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_off00002df9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DF9 22056 bytes
SHA-256: f88bb332fff7622edd963ba7b6a05bb2b7134b6c513d123c58c195f673052337
font_01_sfnt_off00005ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA3 19280 bytes
SHA-256: 61a7b03933f1d1560bdae900b89dd37f2f4fa93dea402a1c4efcd9f0510cdc27

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