Malicious PDF — malware analysis report

Static analysis result for SHA-256 f885983ead4487a4…

MALICIOUS

PDF

34.5 KB Created: 2021-07-07 01:06:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 85949e5caf80cf18d16a5224dd591a16 SHA-1: a7db2ba9606ffade81a533f6904eb87704eb4fe0 SHA-256: f885983ead4487a4501c05c2b204fe459c0fa3dc9ff4f27c9bf7074bd7b1cddb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/479516143/minecraft-bedrock-hacks-windows-10-game-hack PDF link annotation
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/mask-black-panther-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/roblox-lua-cheat-sheet_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-roblox-cards-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-call-roblox-for-free-robux_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/minecraft-java-edition-free-code_GM479516143.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-robux-vouchers_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/cupcake-jailbreak-hack-download-roblox_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_off000031d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D9 21732 bytes
SHA-256: 0a9567772130257b72be9e786651759c892b1e85ad528433d9a76286922e676d
font_01_sfnt_off00006180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6180 19200 bytes
SHA-256: 92ba4d9be554fb736b9e7b1235b09796ba3046a264d1052683216498d49e4302

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