Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e96f86e603e3005…

MALICIOUS

PDF

44.5 KB Created: 2021-06-13 23:14:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a97ac1fdb49423c51ae43c99963eca36 SHA-1: 70bd465e94e835d6526972a3b6f4192bfc913a82 SHA-256: 1e96f86e603e30057c54a915ae3d04ece2e3ed845ea3b801d1ca788766985334
82 Risk Score

Malware Insights

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

The PDF document contains a lure for 'free Robux' and game hacks, directing users to a malicious URL. The heuristic firings confirm the presence of external URIs and a game hack redirector. The document body and extracted URLs strongly suggest a phishing or scam attempt to trick users into visiting potentially harmful sites.

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/how-to-get-free-robux-working-2021-no-human-verification-game-hack PDF link annotation
    • http://krumerhaus.at/images/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://krumerhaus.at/images/como-psar-el-bosque-roblox-free-pokemon-brick-bronze-beta_GM431946152.pdfIn PDF document text
    • http://krumerhaus.at/images/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • http://krumerhaus.at/images/spin-and-coin_GM406889139.pdfIn PDF document text
    • http://krumerhaus.at/images/roblox-2021-cheats-flying_GM431946152.pdfIn PDF document text
    • http://krumerhaus.at/images/roblox-money-cheat-no-survey_GM431946152.pdfIn PDF document text
    • http://krumerhaus.at/images/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://krumerhaus.at/images/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • http://krumerhaus.at/images/how-to-get-free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://krumerhaus.at/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://krumerhaus.at/images/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://krumerhaus.at/images/free-college-textbooks-tiktok_GM835599320.pdfIn PDF document text
    • http://krumerhaus.at/images/roblox-its-free_GM431946152.pdfIn PDF document text
    • http://krumerhaus.at/images/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://krumerhaus.at/images/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • http://krumerhaus.at/images/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://krumerhaus.at/images/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://krumerhaus.at/images/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://krumerhaus.at/images/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://krumerhaus.at/images/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048ec.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48EC 27492 bytes
SHA-256: 53f020e71acc76e618375da855dfe522fadba2239acca979251b3969227e20de
font_01_sfnt_off00008665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8665 20080 bytes
SHA-256: 4d314c59ecba5813c7639521634bb8d419f53a0bfd6ca1c8fcfbd7b313db5ef5

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