Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c1063b3c0083e5f…

MALICIOUS

PDF

44.3 KB Created: 2021-05-12 03:30:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 9e8487866ad8986225fe15eb6df58a94 SHA-1: def0b0acb7b0ae820b71f9c889f31bba3f783405 SHA-256: 0c1063b3c0083e5f3b41639fd69c0d66381fb916d4458901c1d99558b6be18a0
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains numerous links, identified as a link farm, designed to lure users with promises of game hacks and free currency. The primary URL, 'https://netcdn.xyz/app/431946152/how-to-hack-roblox-games-game-hack', and many others hosted on 'simplenepaltravel.com' likely lead to malicious content or further infection vectors. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 https://netcdn.xyz/app/431946152/how-to-hack-roblox-games-game-hack PDF link annotation
    • https://www.simplenepaltravel.com/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/free-spins-coin-master-links-blogger_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/coin-master-free-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/free-coin-master-hacks_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_off00004ac4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC4 28256 bytes
SHA-256: 04507645af82771203538eb5f660cd3d57461652e5bd2c96bcae41e019941bcc
font_01_sfnt_off000089cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89CD 18608 bytes
SHA-256: f0530f62cc2e234d68a11618bd0f649c02fcf1ebf2f14054a2e3aba439076e74

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