Malicious PDF — malware analysis report

Static analysis result for SHA-256 085264f256247476…

MALICIOUS

PDF

45.6 KB Created: 2021-05-17 13:43:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: eaf4ee19e6587fcbf7d50aec3ce6b5e5 SHA-1: 05b59672b43840b81749abde98874dc48622703a SHA-256: 085264f256247476554cac5812be64f906f4e23c052861d6de2f284a2d854fa0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links and a prominent call-to-action lure related to game hacks and free currency. The primary link directs to a site offering a 'coin master game hack app', suggesting a social engineering tactic to trick users into downloading potentially malicious content or visiting a phishing site. No scripts were extracted, but the embedded URLs are the main indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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 https://netcdn.xyz/app/406889139/coin-master-game-hack-app-game-hack PDF link annotation
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/free-robux-group_GM431946152.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://vinhoshortencia.com.br/media/ckfinder/userfiles/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048f4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48F4 26948 bytes
SHA-256: 8d25634cdca8af14cf5be277b6addc1cf59f597794eab33bfed76d4528b8e9e1
font_01_sfnt_off0000868f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x868F 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off0000902f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x902F 18152 bytes
SHA-256: a9beebf818d5886f30c9f2ca3dea49ae6ba882c6c1da3ca8fee2aac0910a50ab

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