Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d5288edd22c479b…

MALICIOUS

PDF

33.5 KB Created: 2021-07-04 09:29:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 929d8da0195922643a7198c67506b131 SHA-1: 8081fea7264a4edea91da82126ce5c3ab25c4860 SHA-256: 0d5288edd22c479bb04894caba1a6b0a0a071f25c1a933e052d3d7a4d78b34eb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' lure. The document body and extracted URLs reinforce this, pointing to sites offering game hacks and cheats. While no scripts were extracted, the embedded URLs suggest a malicious workflow likely intended to download a second-stage payload or redirect to a phishing site.

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/rbx-claim-game-hack PDF link annotation
    • https://zd407.com/ocean_shop1/admin/upload/files/good-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-robux-tampermonkey_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/exploit-download-free-roblox_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/1m-on-roblox-hack_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/roblox-dragon-adventures-crystal-cheat_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-roblox-accounts-2021-dantdm_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/minecraft-mods-download-free_GM479516143.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_off00002db7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DB7 22140 bytes
SHA-256: ba9c28b3ce6c2936c399a818e0c976a2750ab7b90a50e96229159d448144be81
font_01_sfnt_off00005eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEB 18724 bytes
SHA-256: 94011f647025b503e1bd5fbae3f7f94a970aab3ad666f12f92045861b57b65bb

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