Malicious PDF — malware analysis report

Static analysis result for SHA-256 8987e021e80d3f77…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 23:15:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: cb58afc9855c747d1223be1ba0fe322f SHA-1: 346ed7cd628e9fea36a6067e4adb0a0fb678ba51 SHA-256: 8987e021e80d3f77e62741ddfe7dbe9093d9aa6e7058b019f011472fe21421b6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a game hack generator, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect users to a malicious site, likely for phishing or further payload delivery.

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/how-to-get-free-coins-on-flip-master-game-hack PDF link annotation
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-robux-hack-generator-no-survey-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/coin-master-tips_GM406889139.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-roblox-jailbreak-money-hack_GM431946152.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-roblox-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/roblox-free-download-jaleco_GM431946152.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-games-like-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/how-to-get-free-robux-on-ipad-2021_GM431946152.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-robux-2021-legit-feb-unpatched-instantly-no-wait_GM431946152.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/how-to-hack-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/roblox-games-free-login_GM431946152.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-robux-master_GM431946152.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/pubg-uc-load_GM1330123889.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/your-life-free-trial-has-expired-roblox_GM431946152.pdfIn PDF document text
    • https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3215 22976 bytes
SHA-256: 53f5e4dbb24d046dbeff06646f9b7631d5f246b51bc5f132b92c547b56184207
font_01_sfnt_off00006570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6570 18412 bytes
SHA-256: a3f222d31def4247f09cb39abe9d6f493a080d6b52ebda4544bb665d808a25f3

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