Malicious PDF — malware analysis report

Static analysis result for SHA-256 04d14ec08dfd2b06…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 18:54:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 4aab6a5069c861c37d071c7709d47fb0 SHA-1: 69f92805504b8a608a5b7e311268b5ca8aa3f552 SHA-256: 04d14ec08dfd2b0650c891581f80171a941c5edb78459fc17847640a2abe3c4b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, with a primary lure pointing to 'get-tons-of-robux-free-game-hack'. This URL, along with others found in the document body, strongly suggests a social engineering tactic to trick users into visiting malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

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/get-tons-of-robux-free-game-hack PDF link annotation
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-400-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/not-fake-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/how-to-bypass-roblox-anti-cheat_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-skin-roblox-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/how-to-get-400-robux-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/roblox-hack-injector-dl_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/roblox-superhero-city-cheats_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-roblox-proxy_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/how-to-make-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-free-spins-bit-ly_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master--hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-spins-coin-master-app_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_off00003254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3254 22256 bytes
SHA-256: b09079eab1ffc7d99cd2fbdf86411d385f06ae1d6c0c760758f568ddf37e3053
font_01_sfnt_off000063ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AC 18636 bytes
SHA-256: 0ecea68b570b93877ddd66599700d1a3a48383147740e4e3b2df2b4c8874e7ad

Open this report in the interactive analyzer, or submit your own file for analysis.