Malicious PDF — malware analysis report

Static analysis result for SHA-256 af694db46f19af5d…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 07:03:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 66bb71d53a050296a534794bae9b0b2a SHA-1: e1b209d692d7420d8f40310ad269d36e5e6d9283 SHA-256: af694db46f19af5d88575ffa227c60096cce65bfbaaf25b6b978dcaeebe6e62a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a game hack generator, which is a common social engineering tactic to trick users into visiting malicious websites. The ML classifier strongly flagged this PDF as malicious, and the embedded URL points to a known suspicious domain associated with such lures. No scripts were extracted, but the primary attack vector is the redirection to the malicious URL.

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/406889139/coin-master-hack-with-lucky-patcher-game-hack PDF link annotation
    • http://perpustakaan.poltekom.ac.id/repository/redline-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/how-to-exploit-on-roblox-without-cheat-engine_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/robux-today_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-robux-rxgatecf_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/jailbreak-roblox-cheats-cage_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/cheat-codes-for-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/studio-free-10-000-robux-lim_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/roblox-free-candy-van_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-roblox-boombox-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/mario-64-roblox-rom-hack-code_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/roblox-free-hair-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/pokemon-go-free-vpn-android_GM1094591345.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/how-to-hack-someone-on-roblox_GM431946152.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
stream_002_off00003088.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3088 22340 bytes
SHA-256: 751e09084ff083a694fc600ec54bf6d0a734bc3e774fd82dccfb33ae3421da50
font_01_sfnt_off00006264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6264 18844 bytes
SHA-256: 181355d1b7e66c1d20dcc1443123f7c6903d0db3f2ff4c5ece234af5b51ade1d

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