Malicious PDF — malware analysis report

Static analysis result for SHA-256 f79df8a6e5959931…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 07:41:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e719796d1f321674b6e362c0634758f2 SHA-1: 7c3717746fecc74af0f7b0e6fcb3ffa1f991e590 SHA-256: f79df8a6e59599314b9ce317e8777e35b99b59af51606a3fd63fda4efeaeaba6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that promise free game currency and hacks, such as 'free-robux-codes-no-verification-2021-game-hack'. The ML classifier strongly flagged this PDF as malicious, and the presence of these lures indicates a phishing or scam attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent, likely leading to further malware downloads or credential harvesting.

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/free-robux-codes-no-verification-2021-game-hack PDF link annotation
    • http://proyetec.com.co/aym_image/files/coin-master-pc-hack-download_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/free-minecraft-realms-to-join_GM479516143.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/roblox-imagine_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/prison-live-on-roblox-was-hacked-in-deutsch_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/roblox-hack-2021-mega_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/roblox-free-games-folder_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/can-you-hack-peoples-roblox-credit_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/free-robux-generator-script_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/how-to-buy-robux-hack_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/roblox-let-the-bodies-hit-the-floor-hack_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/roblox-citizen-exploiter-free-robux_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/roblox-hacking-kqko_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
font_00_sfnt_off00002eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB7 22144 bytes
SHA-256: c075a88f819bf62ad65895331d25e4e27f7f1e7991af11da2b6969b2f83fdc9e
font_01_sfnt_off00005fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCF 19648 bytes
SHA-256: c9b5e446bd4f49308c598e64be383601662d64f1913011d813836102a9eea03a

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