Malicious PDF — malware analysis report

Static analysis result for SHA-256 1192d2dfa8f733bb…

MALICIOUS

PDF

35.0 KB Created: 2021-07-03 20:28:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 54c1cf42742935697d68e58c5f21a93d SHA-1: 6d3e18769b4f13dc4b4a7be65cc718980f28f176 SHA-256: 1192d2dfa8f733bb15d1c82839f373adb82b446d8566cb2f40f8614d80f01e27
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a malicious domain, masquerading as a game hack generator. The document body and heuristics indicate a lure for free game items, specifically related to Roblox. The primary malicious URL identified is http://netcdn.tw/app/431946152/roblox-old-avatar-game-hack, which is likely part of a phishing or malware distribution scheme.

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.tw/app/431946152/roblox-old-avatar-game-hack In PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/free-hair-roblox-2021_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/hacker-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/roblox-gta-5-hack_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/free-views-tiktok_GM835599320.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/coin-master-game-free-spin_GM406889139.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/free4mobile24-roblox-hack_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/free-robux-codes-on-android-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/roblox-free-shoulder-friend_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/discord-roblox-fr-hack_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/how-to-hack-accounts-on-roblox-2021-october_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/hackaroncom-free-robux-working_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/roblox-jailbreak-hack-how-to-through-wals-hack_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/roblox-phantom-forces-hacking-scripts_GM431946152.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • https://ptun-kupang.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-no-survey-or-verification_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_off000031fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FB 22452 bytes
SHA-256: c664ce982f5e094755c2e22e58dfc6b6b89241ade25c64f5fdcc692453b74f34
font_01_sfnt_off00006436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6436 18880 bytes
SHA-256: 0980252146bad3bd724b35f26bd39d89a72e4afcd42327430f023e2bfb454902

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