Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4efe4071e093859…

MALICIOUS

PDF

33.8 KB Created: 2021-07-05 04:56:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6cf78a91e27139148e62668b299f0322 SHA-1: ba3cfcf473ac63602fe78ff66e8f68afc82a3d68 SHA-256: c4efe4071e093859d50c3f8dbd239e75d7f5393b4619b579e9a350f2d26030db
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-severity heuristic firing for a game hack lure, directing users to a suspicious URL. The document body also contains this URL, reinforcing the lure. This suggests the primary goal is to trick the user into visiting a potentially malicious site for game cheats.

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/instant-free-spins-coin-master-game-hack PDF link annotation
    • https://www.zagi.hr/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • https://www.zagi.hr/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/tweakbox-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/dragon-ball-rage-roblox-cheat-engine-hack-august-2021_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/pubg-uc-visa-card_GM1330123889.pdfIn PDF document text
    • http://zagi.hr/files/roblox-hacks-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-tips_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-free-spins-may-11-2021_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • https://www.zagi.hr/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/roblox-bleu-hack_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/minecraft-story-mode-free-download_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
stream_002_off00002e07.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E07 23028 bytes
SHA-256: cb1b3057f60b22e6d10a8b6ed2c90a9760aed1ef21d1a6ea419c620a5f9e7216
font_01_sfnt_off000061ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CE 18176 bytes
SHA-256: c70a1f0c614cb30c37444bf3dc225d6e3fc5e4532f1fb822084366f15ec213db

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