Malicious PDF — malware analysis report

Static analysis result for SHA-256 77044dac0b023398…

MALICIOUS

PDF

33.5 KB Created: 2021-07-05 07:36:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 314992a6a9b1014e0019eacdfd6f6bdb SHA-1: 555953a389150e7f0088959eee4decb822bbfd9e SHA-256: 77044dac0b02339866d41ba861e4aee83faf638db5e4c5c2eed26af800ab176e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links to external websites, including one identified as a 'free generator / game hack' redirector. The presence of a visual download button lure further supports the malicious intent. The document's content and linked URLs indicate a social engineering attempt to trick users into downloading potentially malicious files under the guise of game cheats or generators.

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/479516143/minecraft-reach-hack-game-hack PDF link annotation
    • https://c2o-library.net/catalog/repository/roblox-cheat-dll-phantom-forces_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-robux-no-human-verification-or-download_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-dead-winter-infinity-hack_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-by-bananaman-world_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-texting-simulator-money-hack_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/pubg-uc-price-in-uae_GM1330123889.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-create-vip-server-roblox-free_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/robux-hack-v6-5-pastebin_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-hack-tycoons-on-roblox-with-cheat-engine-64_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-server-hack_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-hacks-no-verification_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_off00002fad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAD 22160 bytes
SHA-256: 3b32c934f75743e80a7bd21967239b9c11269c0bb11e6dfa8178ba91659bdddc
font_01_sfnt_off00006090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6090 18192 bytes
SHA-256: 500ab096ffaae84b420b131702aed4b550a162be8e727a2c18dfcaf438f7d660

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