Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bd9cb0f8af49117…

MALICIOUS

PDF

36.1 KB Created: 2021-06-20 00:01:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a70ddeeb071e50c1cac226fdab10230d SHA-1: 7f62ab0b0070b3afc25f292f25936c04dae67b04 SHA-256: 2bd9cb0f8af4911784fe333e80f0c9240d7eead4c8a0ca73cc7033228fe9e64e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and text referencing 'free Robux' and game hacks, strongly indicating a lure for a scam or potentially malicious download. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' confirms this, pointing to a URL that promises game-related benefits. While no scripts were explicitly extracted, the nature of the lure and the embedded URLs suggest a phishing or social engineering attack aimed at tricking users into visiting malicious sites.

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-get-free-robux-on-roblox-2021-with-proof-game-hack PDF link annotation
    • http://perpus.i2s-learning.com//repository/cm-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/pokemon-go-free-latest-version_GM1094591345.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/cual-es-el-hacker-mas-peligrosode-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-pro-roblox-stuff_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/cheat-engine-roblox-tycoon-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-exploit-download_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/bhop-hacks-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-coin-master-app_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/comapp-trekfree-coin-spindaily-link-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hacks-para-roblox-sin-inyectores_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-coin-master-links_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_off00003263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3263 22800 bytes
SHA-256: 771267a5b512b4aa8373b008d220cdd5172a10ed05ff0793a5e29002819fc241
font_01_sfnt_off00006546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6546 20100 bytes
SHA-256: db7490c022353bae3b2c1f567183ee4f3ecf8373f7695b56972d24529436dfd5

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