Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b5effbe03476571…

MALICIOUS

PDF

37.9 KB Created: 2021-07-05 12:44:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b1aeec534b652f028b8fc3beae72c48f SHA-1: e4c510c3ecfdeb5c26af45be7ca5138b5285a515 SHA-256: 5b5effbe03476571993a771d5b4ae8f18e96cde1d43eef1f2ff77cd0212b20b2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites that offer 'game hacks' and 'generators' for popular games like Coin Master and Roblox. The presence of these lures, combined with a high ML classifier score, strongly suggests a malicious intent to redirect users to potentially harmful sites or download malware. No scripts were extracted, but the document's structure and embedded links are indicative of a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9886

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-game-free-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/robux-hack-inspect_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-hack-download-iphone_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-clothes-on-roblox-without-bc_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-synapse-exploit-free-cracked_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-android_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-hack-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-connect-to-xo-s-hack-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-roblox-studio-on-mobile_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-bee-swarm-simulator-script-hack_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-catalogue-free_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-400-robux-promo-code_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/application-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/como-hackear-roblox-movil_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-generator-2021_GM431946152.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
font_00_sfnt_off00003492.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3492 22692 bytes
SHA-256: 56a44ccf96fbc1992b7877ceb05045000c1ea5c7f1677845a00948425d5c99fd
font_01_sfnt_off0000677d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x677D 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00007162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7162 18260 bytes
SHA-256: 2243396696a0e7f3d55c1c2f870829adacaf9fe85239c509a0ea3e936d0a9d5c

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