Malicious PDF — malware analysis report

Static analysis result for SHA-256 e02dec3367c89e44…

MALICIOUS

PDF

34.5 KB Created: 2021-06-19 02:19:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ba3a2d18c5eef8c0ea3ee668b62c7b4f SHA-1: 3b8af9cc43d863f88b1e698839ece7bf499c9fc0 SHA-256: e02dec3367c89e447ffc3fc4252cace309a42bd56b97b1832edbf341f2b83575
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.co/app/431946152/can-cheat-engine-hack-roblox-game-hack PDF link annotation
    • https://c2o-library.net/catalog/repository/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-god-hacks_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/cpbildco-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-roblox-animations_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/is-roblox-free-on-switch_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/hacking-method-for-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-jailbreak-cheat-table_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-date-and-time-hack_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/se-pueden-hackear-las-cuentas-de-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-obc-roblox-accounts-2021_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_off00002fae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAE 22476 bytes
SHA-256: 31f346db6ed2441f46e2ddf7a2fe703fdaeaaf9d78f250fcec5074e6cb7d6166
font_01_sfnt_off000061e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E5 19044 bytes
SHA-256: 9bd9c9f9cc316b28b661885135870129284de260cbc5f9047410dbb12b289759