Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c3e0b1550d81ab4…

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 23:03:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 11588f587a12655204da229a462f90ba SHA-1: 1ca7e10c6b7c0dce8a25a96b7baff8ecd5e6fa6e SHA-256: 2c3e0b1550d81ab40eecb5f52271429d4d64231182ddde63a48162cf402f03d1
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/431946152/give-me-robux-game-hack PDF link annotation
    • https://ibelive.tw/image/data/files/free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-roblox-animations_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-bc-admin-leaks_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/err-face-roblox-free_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/cbr-free-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-hack-roblox-accounts-july-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/undertale-monster-vs-human-roblox-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/real-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/moon-active-games_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/robux-free-online_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-levels_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_off00002e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E62 22204 bytes
SHA-256: a611d8292e7361b4076d945392fbfca64e5754d62670c0bc15294e53c46ee76b
font_01_sfnt_off00005fad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAD 18984 bytes
SHA-256: 4e46e4fba873faa5c118d7fc25cc80c06536480829301173d0374a806a09fbcf