Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bcb700f143a6cb5…

MALICIOUS

PDF

43.9 KB Created: 2021-05-11 00:52:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 096fe4a28d32b8bde363474cdeca92c0 SHA-1: 83f1137f989ebdecc4eda921b6318fa822644816 SHA-256: 0bcb700f143a6cb56d95e5fc1ca0a7797ee82a9f59c3acb709df38b964b97e55
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 0.9648

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 https://netcdn.xyz/app/406889139/coin-master-tips-game-hack PDF link annotation
    • http://electro-nrg.com/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/free-roblox-app_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/free-mod-apk-coin-master_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-free-rewards-link_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://electro-nrg.com/images/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-hack-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/free-coins-coin-master-link_GM406889139.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_off0000489a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x489A 24576 bytes
SHA-256: 902bf4426104707a28330eb8749677db954020155741ae4672602064b694b503
font_01_sfnt_off0000809c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x809C 2868 bytes
SHA-256: d2d857e2ddc1082c7667b23f2135a5c0ba26a2ff8b42c86c89c8e0b09aece855
font_02_sfnt_off00008a87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A87 17724 bytes
SHA-256: 47f1771a310bbd424fb5c5011bebf45412061033fc49cda5461d9fa2df00a095

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