Malicious PDF — malware analysis report

Static analysis result for SHA-256 743136964f95a35d…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 00:15:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 34ffdf0b5dbe1ceada3ad8adaafe9433 SHA-1: c4f4fdde4e15d97e4eb1bd4c862a8754bdae20de SHA-256: 743136964f95a35de58c40862689ab724a4239800e673f3b46ef4b6f3d776d7d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector at http://netcdn.co/app/431946152/all-roblox-dance-hacks-game-hack. These links are presented as 'free generators' or 'game hacks', indicating a lure to download potentially unwanted or malicious software. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting these sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/all-roblox-dance-hacks-game-hack In PDF document text
    • https://fib.ub.ac.id/sac/repository/cheat-engine-roblox-no-survey-no-download-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-hack-funnehcake-on-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-minecraft-generator_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/como-ser-fuerte-en-boxing-simulator-2-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-links-for-free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/pokemon-go-free-gold_GM1094591345.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-garbage-simulator-script-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-and-bc_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/free-roebucks-com_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-redeem-card-codes-free-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-often-pubg-uc-advance_GM1330123889.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/daily-coin-master-free-spin-link_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
font_00_sfnt_off00003137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3137 22484 bytes
SHA-256: e7410753b65b6bdde7634f3194fbf8cd8a33eaa7d32516cbd23bd091e7289220
font_01_sfnt_off00006330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6330 18824 bytes
SHA-256: 06a30345f989bb84dfdb720366802b0c0760905b558038a9b426b9653f0bd766

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