Malicious PDF — malware analysis report

Static analysis result for SHA-256 44b724c1f2353ac4…

MALICIOUS

PDF

46.6 KB Created: 2021-05-13 14:06:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 52992e3c845e9f1acf44dde222c35126 SHA-1: d97c5a9b1a80fc50936d35f70697de05dff614e7 SHA-256: 44b724c1f2353ac4e06cd29c38313967d54d5cd30cc99f4354de407302e0bd21
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains multiple links disguised as 'free game hacks' or currency generators, impersonating brands like Facebook to trick users into clicking. The primary lure URL is https://netcdn.xyz/app/431946152/free-ways-to-get-robux-game-hack, which is part of a credential phishing attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a malicious intent to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/free-ways-to-get-robux-game-hack.
  • 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/431946152/free-ways-to-get-robux-game-hack PDF link annotation
    • https://creationegyptco.com/userfiles/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hacks-that-work_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-daily-free-spins-25_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hack-apk-android_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b82.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B82 27176 bytes
SHA-256: 835e2579e6bdac30d72c81530be2d69440a6716d8266b760d83fb634a475c74c
font_01_sfnt_off00008868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8868 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off00009209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9209 18724 bytes
SHA-256: 4748f019d46a9554f00c7c8cf9bb59ec204dfb95bc520e2d25b5a7c8ef81b270

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