Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7ce25bbe1f092d7…

MALICIOUS

PDF

35.1 KB Created: 2021-07-04 20:01:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fbbf900c5e2a1abdc741d8cc5f78001e SHA-1: 59d3e9db87c8f9f571a8e68046c3cd1720751ee4 SHA-256: e7ce25bbe1f092d7559841ee9136e8ca6470d876bcf342d1b101d88ccfe299ac
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a heuristic firing for a 'free generator / game hack' lure, indicating a social engineering attempt to redirect users to malicious websites. The document body also contains similar lures and URLs, reinforcing the phishing and scamming nature of the file. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest a potential for further malicious actions, such as downloading additional payloads.

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-free-generator-game-hack PDF link annotation
    • http://stitqi.ac.id/website/repository/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/minecraft-pocket-edition-hack_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/money-hacks-for-rocitizens-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/get-pokemon-go-free-coins_GM1094591345.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/legit-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/real-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-hack-to-get-more-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-event-hack_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_off00003650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3650 22136 bytes
SHA-256: f57cfe9d4a5855728657b6eae0eb144df1e9011d920dbb117a619721fc7e9d1b
font_01_sfnt_off00006759.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6759 17996 bytes
SHA-256: b02f073a20aa754ccf99b8052f1133ce8264aac68338fa0de914a5f25d31d964

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