Malicious PDF — malware analysis report

Static analysis result for SHA-256 52ce5545741710fd…

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 22:36:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2f35cc7540af0d70dc583a1a1a98ab32 SHA-1: d107d82aaa7492850ba2b7ab7cfca32a63b8c5eb SHA-256: 52ce5545741710fdfb10e4ee8f7dea14677e1680d31fbe7ede70b6dcc82c7726
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to game hack generators and free spin lures, indicating a social engineering attempt to trick users into visiting potentially malicious websites. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the embedded URLs suggest the document's purpose is to redirect users to sites that may host malware or engage in phishing.

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/406889139/coin-master-hacks-xyz-game-hack PDF link annotation
    • https://financia-business-school.com/static/upload/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-hack-audio-in-roblox_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-bux-free_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/money-hack-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-hack-download-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/caillou-roblox-hack_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-rewards-link_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-hack-dragon-ball-after-future-roblox_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-free-gamepass-on-horse-world-roblox_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/pubg-uc-and-rp-generator_GM1330123889.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-spin-and-coins-fbid-links_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
stream_002_off0000304f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x304F 23148 bytes
SHA-256: 0de7f027c9f5196988a7de3adf087a0e16a8992385f20c583affddaa56513f5b
font_01_sfnt_off0000645c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645C 18496 bytes
SHA-256: bd2c90d618eff90014fde70917c30f451870fa3342cf3e365369efdfab30b31e

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